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Rolls-Royce Launches New Battery System To Electrify Ships (electrek.co)

Rolls-Royce, a British power system company (not to be confused with the luxury automobile maker), is launching a new battery system to electrify ships. "Rolls-Royce now offers SAVe Energy, a cost competitive, highly efficient and liquid cooled battery system with a modular design that enables the product to scale according to energy and power requirements," the company said in a statement. "SAVe Energy comply with international legislations for low and zero emission propulsion systems." Electrek reports: The company has been working on battery systems for years, but the recent improvements in li-ion batteries are now resulting in a boom of electrification of ships. Andreas Seth, Rolls-Royce, EVP Electrical, Automation and Control for Commercial Marine, said the company expects to deploy more batteries next year than they did over the last 8 years combined: "The electrification of ships is building momentum. From 2010 we have delivered battery systems representing about 15 MWh in total. However now the potential deployment of our patent pending SAVe Energy in 2019 alone is 10-18 MWh."

Seth said that they are delivering the first system to Prestfjord as part of Norway's effort to electrify its maritime transport: "Battery systems have become a key component of our power and propulsions systems, and SAVe Energy is being introduced on many of the projects we are currently working on. This includes the upgrade programme for Hurtigruten's cruise ferries, the advanced fishing vessel recently ordered by Prestfjord and the ongoing retrofits of offshore support vessels. As a system provider we can find the best solution considering both installation and operational cost."

91 comments

  1. Li-Ion ship technology will be a runaway success by JoeyRox · · Score: 1

    As in thermal runaway. No thanks.

  2. Just to clarify the company by Anonymous Coward · · Score: 5, Informative

    Rolls-Royce, the company, IS actually the 'power' company. The luxury automaker is now a licensed marque that is owned by BMW, but the name is only used by permission.

    1. Re:Just to clarify the company by whoever57 · · Score: 2

      Exactly, and the CEO is someone that people here should recognize: he used to be CEO of ARM Holdings.

      --
      The real "Libtards" are the Libertarians!
  3. Good idea by 110010001000 · · Score: 1

    I recently installed a Tesla PowerWall in my boat. Works great. I use solar power to recharge it.

    1. Re:Good idea by Anonymous Coward · · Score: 5, Funny
    2. Re:Good idea by 110010001000 · · Score: 4, Funny

      That was just a minor issue. It will be fixed by an over-the-air update.

  4. Electrified ships? To keep the pirates at bay? by Anonymous Coward · · Score: 0

    Maybe they mean the engines?

    1. Re:Electrified ships? To keep the pirates at bay? by Anonymous Coward · · Score: 0

      No, it's the chairs.

  5. Rolls Royce by Anonymous Coward · · Score: 0

    What happens when Rolls Royce decides they want to make a jet engine. Or Rolls Royce decides to get into the electric propulsion game. Who's trademark wins that dispute?

    1. Re:Rolls Royce by jpaine619 · · Score: 2

      Uh... they have made aircraft engines.. For ... a very very long time..

    2. Re:Rolls Royce by Anonymous Coward · · Score: 0

      That's for the court to decide.

    3. Re:Rolls Royce by raburton · · Score: 3, Informative

      I think you might be confusing this Rolls Royce company with... itself. There is only really one Rolls Royce company, they make jet engines, marine engines, nuclear submarine engines, etc. The only confusing thing is they don't make cars, Rolls Royce cars are just a subsidiary of BMW.

    4. Re: Rolls Royce by Anonymous Coward · · Score: 0

      a royal car for royal people... http://www.basicittopic.com

    5. Re:Rolls Royce by Attila+Dimedici · · Score: 2

      Considering that BMW ONLY owns the Rolls Royce trademark for cars, I would imagine that the Rolls Royce company wins the trademark dispute. This is especially true since when BMW originally purchased the automobile portion of ROlls Royce they neglected to purchase the right to use the trademark and had to negotiate that as a separate deal a few years later.

      --
      The truth is that all men having power ought to be mistrusted. James Madison
    6. Re:Rolls Royce by Anonymous Coward · · Score: 0

      Some would say they still make them.

    7. Re: Rolls Royce by Anonymous Coward · · Score: 0

      Yep, I used to work in a factory making heli engines for them, some predator nose cones, random aero stuff, that biz never goes away

    8. Re:Rolls Royce by Anonymous Coward · · Score: 0

      It was VW that bought the RR Car company from Vickers.

  6. Re:Li-Ion ship technology will be a runaway succes by Anonymous Coward · · Score: 1

    Thermal runaway is mitigated with special cell construction making sure adjacent cells are not affected and water sprinkler systems to cool away the energy. Most dangerous thing with lithion ion on ships is getting rid of the generated steam and the pressure it generates.

  7. MOD PARENT UP by Brett+Buck · · Score: 1

    Congratulations, you win the internet for Sunday, August 19, 2018!. Check in next Saturday to see if you win the internet for the week. I'm pulling for you!

    1. Re:MOD PARENT UP by 110010001000 · · Score: 1

      You guys must be shorts.

    2. Re:MOD PARENT UP by Brett+Buck · · Score: 2

      Fanboys tend to be humorless douchebags when their ox is gored.

    3. Re:MOD PARENT UP by Anonymous Coward · · Score: 0

      He's actually a straw man, who posts willfully ignorant shit to prime both sides and get them foaming at the mouth. I can't believe people still fall for it. See any article he posts on AI, space research, Tesla, etc.

  8. Why? by Anonymous Coward · · Score: 0

    Why use batteries. Modern ships already use electric engines driven by multiple diesel generators. The diesel fuel is far more energy dense than batteries, so it is a more efficient storage medium than batteries anyway. Even if you use the batteries, you still have to use diesel generators to charge the batteries.

    Why use batteries? To me it seems inefficient and unnecessary.

    1. Re:Why? by Nutria · · Score: 2

      The only reason I can think of is that it lets you run the engines at only the most efficient RPM instead of having to throttle them up and down.

      Hopefully someone will clarify.

      --
      "I don't know, therefore Aliens" Wafflebox1
    2. Re:Why? by mikael · · Score: 1

      For cruise liners, the Azipod directional thrusters are electric powered and consume 20 Megawatts each in order to drive the huge bronze propellers.

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    3. Re:Why? by mrvan · · Score: 4, Informative

      The batteries are meant primarily for ferries, which are especially suited for wired charging as they (1) have relatively short routes (2) between set points (3) with relatively frequent and long (un)loading delays, including generally a nightly downtime. So they can charge at night and top-up every time they (un)load passengers.

      This means they can use generated electricity, which in Norway (the first customer of these ships) means hydro-electricity, reducing pollution (making the gov't happy) and apparently reducing costs by 80%.

      Since the main drawback of all-electric transport is battery weight, it seems that ships, especially ferries and short-distance haulers, should be very well suited to electrification.

      [For comparison, a random city car (VW UP) is 60 HP for about 1 ton.for A lorry seems to be about 500HP for at most 50 (metric) tons fully loaded, so about 10 HP per ton. A random ferry (https://www.teso.nl/nl/teso-mainmenu-70/schepen-mainmenu-106/dokter-wagemaker-mainmenu-107) is 4x1.8KW ~ 10kHP for 7k ton, or just over 1 HP per ton. So, the weight of the battery pack will be a lot less (relatively) to to total weight compared to cars or lorries]

    4. Re:Why? by Luckyo · · Score: 1

      This is already the case. Typical Wärtsilä diesel engine, which is used pretty much all over the maritime business is constant RPM diesel.

      See:

      https://www.wartsila.com/produ...

      Select engine, click "technical data" and you'll see the RPM engine operates at.

    5. Re:Why? by Nutria · · Score: 1

      And gear down when slower speeds are necessary?

      --
      "I don't know, therefore Aliens" Wafflebox1
    6. Re:Why? by EETech1 · · Score: 1

      Electronic drive and / or variable pitch propellers.

    7. Re:Why? by EETech1 · · Score: 4, Insightful

      It lets you size the engine for most efficient cruising, then you use the batteries when accelerating, or whenever you need a burst of power.

      You can recover energy when decelerating, or running the engine at less than peak efficiency.

      When docking or headed to port, you can go all electric to eliminate emissions close to shore.

    8. Re:Why? by Anonymous Coward · · Score: 0

      When I first saw "battery systems representing about 15 MWh", my first thought was how ridiculously puny that is in context. Yet, people tend to ignore such details, because numbers tend to get in the way of fantasy. This will now be cited as "proof" that we can electrify shipping, just like the solar powered ultralights are assumed to evolve into commercial-scale electric aircraft.

      With that said, any pointers for an overview of fuel capacity/consumption and power or engine specifications of large vessels?

    9. Re:Why? by mikael · · Score: 1

      This is the best page I found so far:

      http://www.cruisemapper.com/wi...

      This image has a graph of consumption/speed

      http://www.cruisemapper.com/im...

      Fuel capacity is 3500 to 4000 tones of fuel with about 50/60 gallons to the mile, and 250 tonnes/day.

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    10. Re:Why? by Anonymous Coward · · Score: 0

      That's actually not correct. If you look at Figure 2-1 in the W46F product guide, you'll see that it provides propulsion from about 390 to 600 rpm. The listed speed of 600 rpm is just the maximum.

      dom

    11. Re:Why? by Pravetz-82 · · Score: 1

      ... is 4x1.8KW ~ 10kHP for 7k ton, or just over 1 HP per ton. ...

      You can't omit digits, when using a thousands separator, otherwise it is really confusing. 1.8KW is 1800W. 1.800 KW could be read as 1800 KW, could be read as 1800 W. Context (about bothe the subject of the text and cultural origins of the text) can help understand it. I personally dislike thousands separators, because they can be confusing in cases like this.

    12. Re:Why? by Anonymous Coward · · Score: 0

      You're complaining that he didn't make his decimal points confusing enough?

    13. Re:Why? by Luckyo · · Score: 1

      That is not a correct interpretation of the figure. Nominally engine under load should be at 600RPM. "Can provide propulsion" is not the same as "should provide propulsion". You'll find this in chapter 3, where engine's technical specs for hooking it into auxiliaries is shown.

      And in all other modes, such as almost ubiquitous electric drive, the engine sits at 600 RPM. The engine can be revved down all the way to 380, but operation in lower end RPM is time limited (chapter 2.3).

      These are, for all bits and purposes, constant RPM diesels. It's how it operates with everything but direct mechanical link to the propeller, which is very rare in the days of electric propulsion. It's how the naval diesels evolved with it, because engine heavily optimized for constant RPM is much more efficient than one optimized for a wide range of RPM when operating in overwhelming majority of conditions.

    14. Re:Why? by LynnwoodRooster · · Score: 1

      It's typically for maneuvering in close to port, where some cities have pretty restrictive emissions requirements.

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    15. Re: Why? by Anonymous Coward · · Score: 0

      Only, much of the Norwegian hydro power is sold tot other EU countries, so unless they specifically charge with hydro (or other renewable) power that they purchase as such, the ships will be charged with fossil or nuclear energy power.

  9. Re:Li-Ion ship technology will be a runaway succes by TeknoHog · · Score: 1

    Most dangerous thing with lithion ion on ships is getting rid of the generated steam and the pressure it generates.

    A nice steam turbine will turn that bug into a feature.

    --
    Escher was the first MC and Giger invented the HR department.
  10. I like it by nospam007 · · Score: 1

    I bet those are the Rolls Royce of batteries.

  11. Re:I expect they'll be as successful as electric c by dwywit · · Score: 1

    " Weight, even on something as weight insensitive as a ship at sea, will become an issue with this kind of energy density differential."

    Perhaps the batteries can replace some of the ballast?

    --
    They sentenced me to twenty years of boredom
  12. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    Perhaps the batteries can replace some of the ballast?

    Ballast free ship designs are likely to be a thing in the very near future.
    https://shipinsight.com/articl...

    Ballast is just dead weight, by definition. It is used to balance the ship for safe transport. To do this the ballast has to be able to be moved with relative convenience and speed. A battery pack is unlikely to meet this definition.

    A typical Panamax container ship will carry over a million gallons of fuel. To fit through the Panama Canal the ship will have to meet the very tight constraints on depth, width, and length. Taking on enough batteries to make any kind of impact on the fuel burned will make an impact on the cargo it can carry. Then there are maximum sizes for the Suez Canal and for the ports these ships serve.

    If a Panamax ship needs 1,000,000 gallons of fuel to complete it's journey, and just 10% of that fuel is replaced by batteries, then how much extra weight, length, depth, and so on would this ship have to be to carry the same amount of cargo? If my math is correct 100,000 gallons of diesel fuel weighs 300 tons. To get the same energy in a battery would mean carrying 30,000 tons. That's half the cargo capacity of a Panamax ship.

    --
    I am armed because I am free. I am free because I am armed.
  13. Cars vs boats by manu0601 · · Score: 1

    If you read that thinking about cars, remember that battery are heavy, and that weight is much more a problem for a car than for a boat.

    1. Re:Cars vs boats by quenda · · Score: 1

      If you read that thinking about cars, remember that battery are heavy, and that weight is much more a problem for a car than for a boat.

      True, but typically range is much more of a problem for a ship.
      Short ferry crossings are the place to start.
      Norway feels terribly guilty about getting filthy rich from selling oil, so are willing to burn money to feel green. And those fjords need a lot of ferries.

    2. Re:Cars vs boats by Anonymous Coward · · Score: 0

      They're rich from their hydro too : on top of it basically powering the country they have a rare and highly sought hydro energy storage capacity and import the excess renewable electricity from their southern neighbors.
      They're basically forcing the population to buy electric cars. This will even improve storage capacity if they use sleepy cars for "vehicle to grid" on some sort of scale and the ferry batteries at night may play a limited role in this if applicable.

    3. Re:Cars vs boats by angel'o'sphere · · Score: 1

      so are willing to burn money to feel green.
      Rofl ...
      The electric ferries safe 80% of their fuel costs ...

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    4. Re:Cars vs boats by quenda · · Score: 1

      Rofl ...
      The electric ferries safe 80% of their fuel costs ...

      Good on them. Maybe it even covers the capital cost with no subsidy needed. No need to be so smug. I don't claim to know the cost of diesel vs electricity in Norway, though expect the hydroelectric is cheap.
      I mean people there are willing to buy the "eco friendly" even when it costs *more*. Heck, we all are. Just more so in Norway.

    5. Re:Cars vs boats by drinkypoo · · Score: 1

      If you read that thinking about cars, remember that battery are heavy, and that weight is much more a problem for a car than for a boat.

      If you think weight is a problem for a boat more than a car, consider that most road-going vehicles are not ballasted, but most ships are. (As it turns out, rear-engined buses are often ballasted, with steel plates mounted over the front axle, but that's a special case.)

      Remove ballast. Install batteries. Problem? What problem?

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    6. Re:Cars vs boats by Anonymous Coward · · Score: 0

      Ok, so they _aren't_ burning money? Because you were wrong and he called you on it. That's "smug"?

    7. Re:Cars vs boats by RespekMyAthorati · · Score: 1

      Holy fuck.

      You really are illiterate, aren't you?
      You just argued with the exact opposite of what he said.

    8. Re:Cars vs boats by angel'o'sphere · · Score: 1

      Well,
      you could have read the linked article, they usually are more interesting than the summary on /. anyway ...

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  14. Re:I expect they'll be as successful as electric c by MightyMartian · · Score: 2, Insightful

    I agree. Who needs one of those new fangled horseless carriages; noisy, slow, break down a lot. A horse and buggy, boy, it worked for our fathers, grandfathers a long ways back. No need to invest in this troublesome new technology. Mark my words, in fifty years, no one will own these silly horseless carriages!

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  15. Re:I expect they'll be as successful as electric c by drinkypoo · · Score: 4, Insightful

    they'll be as successful as electric cars

    I think you're exactly right. Just like electric cars, they will become the desirable vehicle anywhere they are feasible. Short-haul ferry service, for example. It won't be all pure-EVs, though. The key to understanding who will want this lies in the following sentence:

    "SAVe Energy comply with international legislations for low and zero emission propulsion systems."

    Ports around the world are banning the burning of bunker fuel. How do you solve this problem? You can carry multiple kinds of fuel, or you can use a hybrid system. You don't need full speed within ports, so the energy requirements are far lower there. You charge the batteries while underway, then you switch to electric while within the region controlled by the port. Once you've left, it's back on the bunker fuel. This solves the problem of poor air quality in the port itself, at least for the pollution produced by ships. The other source of poor air quality in ports is from semi-trucks doing port drayage. Anti-idling laws have improved that problem (especially in California) and hybrids and hydrogen vehicles will essentially solve it completely.

    So you're right, we're not going to see the ICE depart shipping any time soon. However, we are going to see electrification of basically all ships, just as we're going to see electrification of basically all automobiles.

    In the longer-term, floating solar swarms can be installed along trade routes currently followed by container ships, and used to recharge them in mid-journey. Larger and larger percentages of motive power can be supplied to hybrid ships over time, until they are finally using their ICEs only for emergencies or in inclement weather.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  16. Re:I expect they'll be as successful as electric c by Anonymous Coward · · Score: 1

    This means nuclear power, or liquid fuels derived from nuclear power.

    It is unfortunate that synthetic fuels don't get more attention, because they offer the potential to make all of our existing liquid fueled machinery carbon-neutral. Electric cars will be useful, especially within cities, but they are not a panacea. Energy dense liquid fuels will continue to be indispensable for some applications, including air travel. The focus on electric cars for decarbonization is a distraction, and synthetic fuels should be a higher priority.

    Lesser known, is the issue of ammonia for fertilizer, which like oil and gas, is also distributed by pipelines. It will remain indispensable, yet is also a huge consumer of fossil energy resources today. Producing synthetic ammonia is easier as well, as it needs no carbon feedstock. Nitrogen constitutes the bulk of Earth's atmosphere, making ammonia very attractive as a carbon-neutral synthetic fuel, in addition to its ongoing use for fertilizer.

    There is talk of storing surplus wind and solar energy as synthetic fuels, but with their low capacity factor, they are unlikely to ever do this economically. However, nuclear heat is an ideal fit, since it is available 24x7, and avoids the electric conversion losses.

    In the future any ship of sufficient size should be nuclear powered. How big is "sufficient"? I'm guessing Panamax or bigger, that would be about 50,000 ton displacement.

    "Sufficient" should also shrink with time, as reactor technology advances. Molten salt reactors are especially attractive, since they do not suffer xenon poisoning as in solid fuels. Contrary to naval reactors, which require highly enriched fuel and careful reactivity control, MSRs naturally follow load, responsively, and contain much less fissile content. These attributes make them more attractive for commercial maritime transport.

  17. pretty naive by rojash · · Score: 1

    how could the OP be naive as to say " not to be confused with the luxury automobile maker" Doesn't she know about TMs ??

    1. Re:pretty naive by Anonymous Coward · · Score: 0

      because they ARE two different companies. The reality is that Rolls-Royce motor company isn't even the rolls royce of old, as Bentley is the successor company after Vickers sold off the company. Rolls-Royce, the car company, today is a venture owned by BMW that was created when BMW licensed the Rolls Royce name and trademarks.

  18. Re:I expect they'll be as successful as electric c by blindseer · · Score: 2

    In the longer-term, floating solar swarms can be installed along trade routes currently followed by container ships, and used to recharge them in mid-journey. Larger and larger percentages of motive power can be supplied to hybrid ships over time, until they are finally using their ICEs only for emergencies or in inclement weather.

    Or, we could keep those solar collectors on shore and use them to produce synthetic fuels. Then the fuel can be poured into any existing ship that burns diesel fuel, with no sulfur like in bunker fuel or low grade marine fuel. That means no stopping in the middle of their route, no dangerous at sea recharges, and no fancy batteries that don't exist yet.

    Waiting for battery powered ships to become economically viable is, quite literally in this case, waiting at port for a ship that may never come. We've been synthesizing hydrocarbons for a very long time. This hasn't been done to make fuel, except in times of war, due to the costs. It has been used for a long time now to make high performance lubricants. The US Navy has a program to both bring down the cost and scale up production.
    https://www.zmescience.com/res...

    Which is more likely to be successful sooner? These solar swarms of recharging ships for cargo carriers that do not yet exist? Or, a fuel synthesis process that allows the use of most any source of electricity to produce fuels that work in every ship at sea, and every plane in the air, right now?

    Another alternative for large "green" ships is the use of nuclear power. This is a technology that has been at sea for decades. A technology that 60 years ago, almost to the day, sailed to the North Pole. A technology used in Russian icebreakers. If you want to discuss "inclement weather" then I believe that nuclear power passed that test a long time ago.

    --
    I am armed because I am free. I am free because I am armed.
  19. Re:I expect they'll be as successful as electric c by blindseer · · Score: 2

    People have been working on electric propulsion on sea (and land) for over 100 years and it's still not competing with nuclear, wind, or diesel. You think this will change all that quickly? Even if the problems on this are solved tomorrow this will still have to be brought up to mass production and that will not only take a long time but still face resistance over fears of performance, long term economics, and so on.

    What we know does work is nuclear power. It's as "green" as anything and has had 60 years of experience to prove it viable. There is an existing capacity to build these ships right now. It might take a while to ramp up production but this shouldn't be too difficult. The engineering behind naval reactors might take 21st century computing and technology but the actual construction is something from the early 20th century. Making the reactors is one small step up from hammer and tongs steelworks.

    Another long standing technology is synthetic fuels. This can be synthesized hydrocarbons, which again is 100 years old, and can use energy from most any heat and/or electrical source. Synthetic ammonia is a good choice for fuel, another century old technology. These fuels will burn in existing engines, with little or no modification. Any resistance to this should be easily overcome since it requires nothing or next to nothing done by the ship operators to adopt.

    Battery electric propulsion still faces a lot of technological hurdles. The problems with nuclear propulsion, or synthetic fuels, are largely problems of policy. We can change the political rules that keep these ships from sailing. Changing the rules of physics and/or economics are far greater challenges.

    We can keep working on electric ships. I'm certainly not going to stop you. What should we do until these ships arrive? What do we do if this technology never gets beyond the prototype? I say we try nuclear power and synthetic fuels. We can do that today and with century old technology.

    --
    I am armed because I am free. I am free because I am armed.
  20. Re:I expect they'll be as successful as electric c by Anonymous Coward · · Score: 0

    There is one good reason to use battery only to leave the port. The engine just makes too big of a stink and pollution. I don't know how much it would help in Panama itself. Probably there are spots where not stinking up is better and others you may pollute more. But imagine just 100-200 tons of batteries to move the ship a bit, 400 tons, I don't know.
    Since we established that the ship can be moved by electric (uh, isn't the big diesel engine coupled to the propellers? or is electric motors a done deal on huge container ships?) you'll want electricity. You probably have, need or want auxiliary generators on the ship. So, supplement the batteries with diesel generators running on "clean" diesel fuel.

    This is my little, very armchair admiral idea.

  21. Re:I expect they'll be as successful as electric c by Anonymous Coward · · Score: 0

    In the longer-term, floating solar swarms can be installed along trade routes currently followed by container ships, and used to recharge them in mid-journey. Larger and larger percentages of motive power can be supplied to hybrid ships over time, until they are finally using their ICEs only for emergencies or in inclement weather.

    You really ought to read Entropy, Energy and Order in the Universe. Large and complex systems harvesting diffuse energy flows are just not thermodynamically attractive.

  22. Gas Turbine Power by sycodon · · Score: 1

    This is essentially the same thing, as the electricity to power the ship will likely come from natural gas power plants, which are usually just a generator hooked up to a gas turbine. At destination sites in Asia, the recharging will likely be done via a coal fired plant.

    --
    When Fascism comes to America, it will call itself Anti-Fascism, and tell you to give up your guns.
    1. Re: Gas Turbine Power by Anonymous Coward · · Score: 0

      Still more efficient than a ship burning diesel through a less efficient engine.

    2. Re:Gas Turbine Power by Anonymous Coward · · Score: 0

      Very true but ships running bunker fuel are a special kind of nasty

  23. Re:I expect they'll be as successful as electric c by Anonymous Coward · · Score: 0

    Thank you too about setting things straight on "green" bio-mass fuels. If we really did need and use them on any massive scale instead of very limited applications we would end up destroying and cutting down everything on Earth till there's nothing but wasteland and desert and goat and cattle skulls.

    Agrarian analogy in the Iron age or such : let's slaughter our cattle and burn the grain harvest to BBQ them - not before having made a lot of beer, which is another interesting bio-mass.
    This could be an awesome week of partying. A case of voluntary civilizational collapse but fun while it lasts.

    This means nuclear power, or liquid fuels derived from nuclear power.

    A bit of liquid fuel from hydro power I can see done, or liquid fuel from geothermal in Iceland though that might be very little next to global needs.
    Dreaming of liquid fuel from solar but well. Doubtful. Let's just make billions tons of NH3 and CH4 from air and water, and funny combinations but the energy requirements seem disastrous unless breakthroughs on energy efficiency and cheapness of electrolysis and other chemistry come true.

  24. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    Here's my armchair engineer response.

    A 400 ton battery would have about the same energy as 4 tons of diesel fuel. 4 tons of diesel fuel is about 1200 gallons. A large ship doesn't get "miles per gallon" it gets "feet per gallon". Getting just orders of magnitude here this is between 100 and 10 feet per gallon. How far will that 400 ton battery take a cargo ship? Somewhere between 120,000 and 12,000 FEET. Again in orders of magnitude this is between 20 miles and 2 miles. The Panama canal is about 50 miles long.

    I'm no sailor but I've met a few and the big ships do often have backup generators in case of a main engine failure, usually more than one backup generator. These are not intended to propel the ship, only to provide lights, communication, and such, to prevent a collision and aid in recovery. Turning off the main engine is a BIG DEAL and not done often as that runs the risk of it not starting again. Doing so out of port means the possibility of going adrift. This is a hazard for the ship and other ships in the area.

    The old diesel electric submarines kept two diesel engines on board. This was so they could still move under power if one engine was in need of repair. When submerged both engines would be stopped. When surfaced normally only one engine would be run. If that engine sucked in water, or some other kind of failure, then they could still run on the other engine until the problem was repaired. I assume in times of great need they could run both engines for higher speeds. If a cargo ship was similarly equipped, with two "main" (prime mover) engines, then perhaps one could be shut off when in or near port to reduce pollution. However, these engines are very large, very expensive, very reliable, and therefore only warships have two main engines. Deviating from what I assume to be nearly 100 years of common practice on commercial shipping would likely be met with considerable resistance from both the shipping companies and the regulators. Just getting transoceanic airplanes to shift from four to three engines was met with considerable resistance. This is not just an engineering problem, but one of regulations.

    --
    I am armed because I am free. I am free because I am armed.
  25. Re:I expect they'll be as successful as electric c by Anonymous Coward · · Score: 0

    Alright. I was estimating some energy roughly enough to enter Panama canal or to exit it, but not cross it.
    But any fantasy of turning off, then turning on midways, then turning off (then turning on) seems not reasonable at all after reading you. I was willing to consider one engine turn off and one engine start, when leaving Panama from the West or the East, if somehow it will feel safer doing this when the ship gtfo. It might be hardly better an idea and I get how terrifying an absolutely huge and heavy floating brick may be.

    Very interesting about military ships.
    Did you know the French aircraft carrier was criticized for having two submarine engines?
    The catch is, these are two submarine-derived nuclear engines. The media also liked to report on the woes (broken propeller, snapped clean. and "oh shit! the flight deck is slightly too short")

  26. Headline by mentil · · Score: 2

    Rolls-Royce Launches New Battery System To Electrify Ships

    That'll take care of those stowaways!

    --
    Corruption is convincing someone that the selfless ideal is the same as their selfish ideal.
  27. Re:I expect they'll be as successful as electric c by cdsparrow · · Score: 1

    I see this replacing the "clean" engines they have to run close to land. Then they will switch to the bunker fuel engines like normal at sea and recharge these batteries. This would make the most sense for such a system.

  28. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    I see this replacing the "clean" engines they have to run close to land. Then they will switch to the bunker fuel engines like normal at sea and recharge these batteries. This would make the most sense for such a system.

    Have you considered how much weight this adds to the ship? Batteries, even the best on the market, weigh 100 times as much as diesel fuel for the same energy output. You can argue on the specific battery technology or such if you like but this is going to be a rounding error. Then consider just how much fuel a ship burns per mile. Here's a reference I found on that:
    https://newatlas.com/shipping-...

    The title of worldâ(TM)s largest container ship is actually held by eight identical ships owned by Danish shipping line Mærsk. All eight ships are 1300ft (397.7m) long and can carry 15,200 shipping containers around the globe at a steady 25.5 knots (47.2 km/h, 29.3 mph) .

    At five storeys tall and weighing 2300 tonnes, this 14 cylinder turbocharged two-stroke monster puts out 84.4 MW (114,800 hp) - up to 90MW when the motor's waste heat recovery system is taken into account. These mammoth engines consume approx 16 tons of fuel per hour or 380 tons per day while at sea.

    This is an extreme example of a very large ship but also a fairly new design and therefore presumably reasonably efficient per ton of cargo moved. California maintains a 24 mile clean burning border out to sea from it's coasts, where ships are prohibited from burning the nasty bunker fuel mentioned in the article. To replace the 16 tons of fuel it burns in one hour, for the roughly 30 miles to clear this zone, it would need 1600 tons of batteries to get the same energy. That weighs nearly as much as the engine, or as much as 100+ cargo containers it would not be able to take as cargo. As it can carry 15,200 cargo containers this might not seem like much, but that's the reduced cargo capacity for every trip it takes for the life of the ship.

    Remember that this does not reduce the total fuel burned, the batteries would have to be charged up in transit.

    There's been other ways to meet these emissions demands with far less impact on the ship. Each ship already has multiple fuel tanks, simply fill one tank with "clean" fuel for while near the coasts. This not only reduces the total "dirty" fuel burned but it requires no modifications to the ship.

    Another popular tactic, though not mentioned in the article, is using liquid natural gas on a dual fuel engine. These can switch from bunker fuel to far cleaner natural gas when near the ports. This does require some modification, but far less than trying to make room for a very large and heavy battery pack. The article also makes mention of the possibility of nuclear powered ships, which is where I expect us to get to eventually.

    --
    I am armed because I am free. I am free because I am armed.
  29. Re:I expect they'll be as successful as electric c by angel'o'sphere · · Score: 1

    The Danish Ferries do exactly this, and Blindseer is to blind to see it ...

    --
    Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  30. Re: Li-Ion ship technology will be a runaway succe by dj245 · · Score: 1

    Ships have plenty of other ways to use small amounts of steam. Industrial cleaning of tanks, heating of spaces, tanks, and hot water etc. Having a steam turbine on a ship is generally too complex and space-inefficient to justify any energy savings. Much better to make battery cooling a closed loop freshwater primary system with seawater secondary cooling.

    --
    Even those who arrange and design shrubberies are under considerable economic stress at this period in history.
  31. Re:I expect they'll be as successful as electric c by angel'o'sphere · · Score: 1

    To replace the 16 tons of fuel it burns in one hour, for the roughly 30 miles to clear this zone, it would need 1600 tons of batteries to get the same energy.
    You are of by a factor 20 - 100. I doubt they would need more than 50 tons of batteries.

    --
    Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  32. hybrid marine propulsion by Anonymous Coward · · Score: 0

    People have been working on electric propulsion on sea (and land) for over 100 years and it's still not competing with nuclear, wind, or diesel. You think this will change all that quickly?

    It depends on what you classify as "electric propulsion". If it's only electricity on-board, then I think you are correct (except for specific use cases like the ferries in this story).

    However, something like combined diesel-electric and gas (CODLAG) or Integrated electric propulsion (IEP), which is more hybrid, is more promising:

    * https://en.wikipedia.org/wiki/Combined_diesel-electric_and_gas
    * https://en.wikipedia.org/wiki/Integrated_electric_propulsion

    You have electric engines, which are awesome for torque, powered by electrical generators (with a modicum of battery storage as a buffer).

    The 'problem' with traditional diesel (marine) propulsion is that it is only most efficient at a particular RPM range; that RPM corresponds to particular ship speed. However, ships travel at a variety of speeds at various times and so you have the traditional engines running in a less-efficient manner for much of the time.

    With the CODLAG / IEP model, your electrical (turbine) generators can operate a their peak-efficiency RPM, and the engines can run at whatever RPM they need to for the desired ship speed.

    Of course there are trade-offs with this approach (you need bigger generators, which take up more space/volume and displacement), so that increases upfront costs. However, over the lifespan of the vessel, it can save fuel / pollution and thus money (including externalitites).

  33. Re:I expect they'll be as successful as electric c by drinkypoo · · Score: 1

    Or, we could keep those solar collectors on shore and use them to produce synthetic fuels.

    Your solution is to sacrifice efficiency by adding another conversion step?

    Then the fuel can be poured into any existing ship that burns diesel fuel, with no sulfur like in bunker fuel or low grade marine fuel.

    It will still have emissions. You will still need a separate fuel tank, and to purge fuel.

    Waiting for battery powered ships to become economically viable is, quite literally in this case, waiting at port for a ship that may never come.

    They are literally already viable, which is why they're being produced now.

    Another alternative for large "green" ships is the use of nuclear power.

    Not until the waste problem is solved, and you figure out how to get uranium without strip-mining. Until then, it's the opposite of green.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  34. Re:I expect they'll be as successful as electric c by drinkypoo · · Score: 1

    You really ought to read Entropy, Energy and Order in the Universe. Large and complex systems harvesting diffuse energy flows are just not thermodynamically attractive.

    We already do the automotive equivalent with plug-in hybrids, which are charged at night with a large and complex system harvesting diffuse energy flows ("the grid"), and fueled during the day from a large and complex system harvesting diffuse energy flows (the worldwide network of oil pumps, fuel refineries, and fuel transportation systems.) In fact, a seagoing solar swarm would involve a shorter chain than charging from the grid.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  35. Re:I expect they'll be as successful as electric c by drinkypoo · · Score: 1

    Thank you too about setting things straight on "green" bio-mass fuels. If we really did need and use them on any massive scale instead of very limited applications we would end up destroying and cutting down everything on Earth till there's nothing but wasteland and desert and goat and cattle skulls.

    Only idiots believe this, as a result of being led by the shills of Big Oil. You can make biofuel from algae, and in fact that's the most efficient and effective feedstock. The technology was developed at Sandia NREL back in the 1980s. Today, we have the technology to make not just diesel fuel, but also Butanol, a 1:1 substitute for gasoline. Butanol is made by bacteria rather than esterification or fractional distillation, and therefore can reasonably be carbon-neutral or even carbon-negative.

    Topsoil-based fuels are indeed wrongheaded, and corn ethanol in fuel is a massive boondoggle that the USA will learn to regret. But biofuel does not necessarily mean environmental devastation, and repeating that lie only hastens our downhill slide into oblivion.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  36. Re:I expect they'll be as successful as electric c by dwillden · · Score: 1

    How does CA enforce a 24 mile sea border when international law only recognizes 12?

    --
    I'm too lazy to compose a creative sig.
  37. Re:I expect they'll be as successful as electric c by spectrumlogic · · Score: 1

    Do references to modulating polluting behavior based on proximity to port and/or coastline belie non-comprehension of the finite boundaries of the oceans? Is out of sight really out of mind? Are we truly frogs in the boiling pot? Let’s just leave all those pesky ecological cost accruals to our grandchildren and finally admit that we simply cannot govern ourselves. We can free ourselves from responsibility by agreeing to more convenient facts. So let’s also agree that fish is no longer food, garbage can be beautiful and plastic is a dietary supplement. I could go on ...

  38. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    Prove it.

    --
    I am armed because I am free. I am free because I am armed.
  39. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    Do references to modulating polluting behavior based on proximity to port and/or coastline belie non-comprehension of the finite boundaries of the oceans?

    It's a comprehension of political boundaries. California cannot dictate behavior beyond it's borders. As those borders are defined now they include 24 miles out to sea from the coastline. If you want less polluting behavior from these ships outside these boundaries then we must offer them one in which they would choose that give them the most benefit. They can buy this bunker fuel real cheap in places like China. If you'd rather they buy cleaner fuel then offer them something cleaner for a lower price.

    --
    I am armed because I am free. I am free because I am armed.
  40. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    Your solution is to sacrifice efficiency by adding another conversion step?

    What extra conversion step?
    Your solution:
    Solar -> electric -> chemical battery -> electric -> motive force
    My solution:
    Nuclear thermal -> chemical fuel -> thermal -> motive force

    There's more than one way to define efficiency. Maybe we should try with energy returned on energy invested, solar gets about 10x return while nuclear gets about 50x. With that kind of return at the start we can tolerate some losses in the conversion later.

    It will still have emissions.

    Yes, there are emissions. These emissions are collected in the fuel synthesis process. It's a closed loop.

    You will still need a separate fuel tank, and to purge fuel.

    I don't know what you are talking about. I'm quite certain you don't either.

    They are literally already viable, which is why they're being produced now.

    Battery powered ships are prototypes, with limited utility. Diesel ships are exceedingly common and have been for decades. Same for nuclear. If we are taking this "green" idea to an extreme I could include wind powered shipping. The last commercial ship with sails stopped commercial service in the 1950s, but people try to bring sail ships back once in a while and with the right conditions it might be profitable again.

    Not until the waste problem is solved, and you figure out how to get uranium without strip-mining. Until then, it's the opposite of green.

    Where do you think the solar panels for your idea of solar collecting ships comes from? People are literally stealing the beaches to get high grade silicon for PV cells. If you want to see an environmental disaster then go right ahead with your solar collector idea.

    The nuclear waste problem is solved, except the politicians try as best they can to prove otherwise. What of the solar power waste problem? That hasn't been solved yet. I suggest we hold off on the PV cell production until we figure out what to do with the worn out ones we got.

    --
    I am armed because I am free. I am free because I am armed.
  41. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    You can make biofuel from algae, and in fact that's the most efficient and effective feedstock.

    And you can synthesize diesel fuel from seawater and nuclear power. As it is now both processes are in the prototype stage.

    I have an idea. Let's have both processes compete in the open market. We can have the Department of Energy dump a bunch of money into research on both and see which one will win out in the end.

    Oh, but wait, that's already happening. Except maybe it's the Department of Defense that is dumping more money into both right now. The USAF put a lot of money into jet fuel from algae. The US Navy put a lot of money into jet fuel from nuclear reactors.

    The technology was developed at Sandia NREL back in the 1980s.

    And the Fischer-Tropsch fuel synthesis process dates back to the 1920s.

    But biofuel does not necessarily mean environmental devastation, and repeating that lie only hastens our downhill slide into oblivion.

    The same can be said of nuclear power.

    --
    I am armed because I am free. I am free because I am armed.
  42. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    It's called the "contiguous zone".
    https://en.wikipedia.org/wiki/...

    I'm more curious on how California is given such wide latitude on dictating behavior in what I would consider federal waters.

    --
    I am armed because I am free. I am free because I am armed.
  43. Re:I expect they'll be as successful as electric c by Anonymous Coward · · Score: 0

    No, 1600 tons is about right.
    https://www.engineering.com/ElectronicsDesign/ElectronicsDesignArticles/ArticleID/17435/Will-Your-Electric-Car-Save-the-World-or-Wreck-It.aspx

    Not only are batteries a terrible means to store energy for transportation, the mining of the lithium for the batteries is an environmental disaster, and the batteries are nearly impossible to recycle.

  44. Re:I expect they'll be as successful as electric c by angel'o'sphere · · Score: 1

    How to prove a no brainer?

    https://stateofgreen.com/en/pa...

    Those ferries are diesel electric hybrids, the electricity they store, is the equivalent of 600 hybrid cars.

    That is far from your 1600 tons in batteries

    Hint: it helps to have some common sense, or perhaps I lack the understanding what kind of ton you are talking about and american tonns are super small?

    --
    Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  45. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    Hint: it helps to have some common sense

    You mean like the common sense of comparing a 150,000 ton transoceanic cargo carrier to an 8,800 ton short run ferry? The fuel on the cargo carrier weighs more than that entire ferry.

    You are an idiot.

    --
    I am armed because I am free. I am free because I am armed.
  46. Re:I expect they'll be as successful as electric c by angel'o'sphere · · Score: 1

    We talked about a 30 miles trip, right?
    The ferry does not weight 8000 tonnes, from what reading comprehension missmatch did you get that again?

    --
    Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  47. Re:I expect they'll be as successful as electric c by blindseer · · Score: 1

    I'm pretty sure you are still an idiot.

    --
    I am armed because I am free. I am free because I am armed.
  48. Re:I expect they'll be as successful as electric c by spectrumlogic · · Score: 1

    Do you really believe that your (or anyone else's) belief in political boundaries has anything at all to do with (will prevent spreading) of dangerous pollution. Do you really believe that your opinion is worth a damn when the ecosystem is destroyed? Perhaps I didn't make myself clear...you seem to be trying to prioritize price over planet and I am trying to reverse that in the belief that the resource is more important than quarterly results. Something like a "balance sheet" argument over an "income statement" argument. What is it about this that you do not want to understand? That you seem to fear so much? Please help me understand how longer term thinking on this (and many others) is not the wisest path? It feels and reads like willful ignorance but I acknowledge you may know something I don't...please explain.

  49. Re:I expect they'll be as successful as electric c by angel'o'sphere · · Score: 1

    Up to you ...

    --
    Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.