The kind that cools the water to within 7F of the Wet Bulb temperature rather than to within 10F of the Dry Bulb temperature. http://www.baltimoreaircoil.com/english/products/ct/index.html?page=std Around here in Chicago, that means 85F water for your condensers to reject heat to rather than the much less efficient 105F that your compressors have to overcome.
Why cool it again at all?
Just dump it down the drain and let the water treatment folks send it out again.
Cooling through evaporation only requires about 3%-5% of the water flow to be evaporated and replenshied, plus another 3% or so from blowdown to reduce the concentration of dissolved solids that are left over from the evaporation. So your way would use about 10 to 15 times as much water.
Yes, but if they move the hot water back into the grid and take in more cold water, they no longer need the evaporators.
Yes, and they'll only need about 30 times as much water then!
Not to mention which, I don't want to drink any of that water they put back in the grid after it goes through some faceless company's ill-maintained cooling equipment.
Anyway, you can't just pump fresh water through refrigeration equipment without destroying it from corrosion, scale build up and biological contamination.
Gray water systems are a good idea, but they're not as easy as you make it sound. (that is, they're expensive)
Gray water has to be collected, filtered, and treated, each step of which is a considerably greater capital expense than the typical connection to the local utility. And those "some copper tubes" it's "just going to be pumped through" are parts of expensive refrigeration equipment that doesn't take well to dirty, corrosive, contaminated, or hard water.
Usually a lot of chemicals are added to try to prevent corrosion, scale build-up, and biological contamination. Regulations are getting more restrictive about what can be added, but I still wouldn't recommend swimming in it.
Is the water being destroyed so it is creating a drought in the area?
Yes, so to speak. About half the "destruction" is from evaporation, making it unavailable to the system it was taken from. About half is from blowdown, which is typically sent to the sanitary sewer with all sorts of contaminants in it.
Are thousands of gallons an hour of boiling water being pumped back into the local stream and changing the ecology
Not boiling, but if the waste water is treated enough to dump directly back into the local stream, it will be around 85F, which is much warmer than most streams, and too warm to support the native waterlife. That's why power plants often use up a lot of real estate with cooling ponds for the water to sit in for a while before being reintroduced into a lake or river river.
The water is treated with (usually nasty) chemicals to prevent biological contamination, scale buildup, and corrosion.
The cooling effect comes from water that is evaporated - that's about half the water usage they're talking about.
What's not evaporated is recirculated, the treatment chemicals and contaminants get concentrated by the evaporation, so some of it is bled off into the sewer and fresh water is added - that's about another half of the water usage.
It is definitely NOT drinkable; just ask Erin Brokovich.
Your logic is ill.
If all else is equal, the more expensive option puts a drag on the economy, the cheaper option frees up money for other productive uses.
It's likely a video driver issue.
My laptop suspends/hibernates just fine with the open-source 2D driver. But with the proprietary 3D NVidia drivers in, it wakes up to a mostly black garbled screen.
. . . their demise is well deserved. . . . Why is their death sad?
I agree with you that their death is well deserved, But I'm a little sad about it because back when Circuit City was building new stores at Ponzi-scheme rates, the company I work for was kept busy designing mechanical and electrical for their new stores, and, more recently, remodelings.
They seemed to be pretty efficient, basing all of their construction on prototypes to keep costs down and speed up. But they pulled the typical bureaucratic moves, changing the prototype often and deviating from the prototype on every job - still that's what made the job profitable for us
I always wondered why they felt the need to build so many stores so fast. They oversaturated the market, and there stock price was based on "growth" of little to no underlying value. I believe that even if they didn't have all the problems others are illuminating in this thead, they would still have gone under, just a little slower.
Doesn't the halting problem mean you can never be sure that the OS will always be able step in and kill the offending program after the 30 seconds is up?
IS[sic] MS buys Yahoo, Yahoo dies off, and shareholders are paid off at $x ($33 was the offer) a share, which they can then turn around and invest in MS if they choose.
Not quite
The offer was more MS stock than cash, and if the merger had gone through, MS stock woud've tanked.
Really, Yahoo did Microsoft a favor by turning it down.
A jury of peers means that a commoner is tried by other commoners, not by noblemen, and noblemen are tried by similar noblemen, not commoners. That reduces the chances of verdicts that are about "stickin' it to the rich bastard", or "teach the rabble a lesson", rather than the facts and laws.
Being a mechanical engineer in the construction industry (what's left of it, anyway) I would be willing to bet that the way builders build buildings is not much better than the way programmers write programs.
Code plan review and building inspections largely consist of filling out forms, having an architect/engineer/contractor's signature in the appropriate places, adding statements that some particular part of the code is being followed, along with a generous helping of checks to see that more or less arbitrary rules are enforced, and the occasional check to see that the numbers add up. Of course, structural designs for high rises may get a more useful review compared to architectural review of a one-story strip mall using typical designs.
While building codes are no subsitute for good design, they're (bad analogy coming) like the documentation for a programming language - if you don't follow them, you won't be able to build your project.
One final point, before I get too cynical, poor documentation is not just found in code, one of the most common weaknesses of blueprints is poor documentation.
To be clear, that is not because of the eleectoral college.
That is because those states use a winner-take-all strategy to try to gain more influence.
States could just as well decide to apportion the electors proportionally or perhaps send the winners of county-by-county races to the electoral college.
The Electoral College was set up so that you could vote for a local politician who you would know better than some distant presidential candidate, and so that big states could not run roughshod over the smaller states. (they were considered independent states.) Soon enough, though, states tried to gain more power by throwing all of their electoral college to a single candidate. This is what seems to be objectionable and which creates incentives for some non-democratic tactics and strategy.
New york state is as red as a damn stop sign, and the entire state has gone democrat since forever because the city has more votes than the whole rest of the state
You are confusing the majority of area on a geographic map with the majority of voting population, NY state is blue.
Do you think in our calculations it's as important to distinguish between 2147483648 and 2147483649 as between 5 and 6?
Ummm...yes? One's correct and one's incorrect....
Ummm . . . no. There are a lot of engineering situations with numbers like that where neither are exactly correct and neither is more wrong than the other. The range of acceptable accuracy may be much greater than the difference in results, and the unknowns in possible inputs may be much more important than the accuracy of calculation of outputs.
Around here (Illinois, USA), roads are variously funded by combinations of property taxes, tolls, gas taxes, and income taxes.
Police waste a lot of time chasing non-violent criminals.
I agree that law enforcement can be wasted on minor vices, but a lot of laws which involve non-violence need to be enforced, such as traffic, fraud, corruption, health codes, etc.
Schools are funded by school taxes, and therefore a cut in income tax would not affect them at all.
Again, around here, schools are funded by combinations of township property taxes, state lottery, income, and other taxes.
Most government agencies, in my own government experience at the FAA, have 60-65% of workers who sit-around doing nothing all day long, except surfing the net.
In my limited experience, there is a lot of loafing at private jobs, too, but government is a little more hamstrung by (mostly necessary) laws that are supposed to ensure fairness and reduce corruption.
Slashdot Mirror
The kind that cools the water to within 7F of the Wet Bulb temperature rather than to within 10F of the Dry Bulb temperature.
http://www.baltimoreaircoil.com/english/products/ct/index.html?page=std
Around here in Chicago, that means 85F water for your condensers to reject heat to rather than the much less efficient 105F that your compressors have to overcome.
Cooling through evaporation only requires about 3%-5% of the water flow to be evaporated and replenshied, plus another 3% or so from blowdown to reduce the concentration of dissolved solids that are left over from the evaporation. So your way would use about 10 to 15 times as much water.
Yes, and they'll only need about 30 times as much water then!
Not to mention which, I don't want to drink any of that water they put back in the grid after it goes through some faceless company's ill-maintained cooling equipment.
Anyway, you can't just pump fresh water through refrigeration equipment without destroying it from corrosion, scale build up and biological contamination.
Gray water systems are a good idea, but they're not as easy as you make it sound. (that is, they're expensive)
Gray water has to be collected, filtered, and treated, each step of which is a considerably greater capital expense than the typical connection to the local utility. And those "some copper tubes" it's "just going to be pumped through" are parts of expensive refrigeration equipment that doesn't take well to dirty, corrosive, contaminated, or hard water.
I'll try to answer
Usually a lot of chemicals are added to try to prevent corrosion, scale build-up, and biological contamination. Regulations are getting more restrictive about what can be added, but I still wouldn't recommend swimming in it.
Yes, so to speak. About half the "destruction" is from evaporation, making it unavailable to the system it was taken from. About half is from blowdown, which is typically sent to the sanitary sewer with all sorts of contaminants in it.
Not boiling, but if the waste water is treated enough to dump directly back into the local stream, it will be around 85F, which is much warmer than most streams, and too warm to support the native waterlife. That's why power plants often use up a lot of real estate with cooling ponds for the water to sit in for a while before being reintroduced into a lake or river river.
The water is treated with (usually nasty) chemicals to prevent biological contamination, scale buildup, and corrosion.
The cooling effect comes from water that is evaporated - that's about half the water usage they're talking about.
What's not evaporated is recirculated, the treatment chemicals and contaminants get concentrated by the evaporation, so some of it is bled off into the sewer and fresh water is added - that's about another half of the water usage.
It is definitely NOT drinkable; just ask Erin Brokovich.
Maybe you haven't worked on enough systems.
I see displays to the nearest tenth of a degree on HVAC systems all the time in the US.
If you don't pronounce it as a word, it's not really an acronym, it's just initials.
Your logic is ill.
If all else is equal, the more expensive option puts a drag on the economy, the cheaper option frees up money for other productive uses.
It's likely a video driver issue. My laptop suspends/hibernates just fine with the open-source 2D driver. But with the proprietary 3D NVidia drivers in, it wakes up to a mostly black garbled screen.
I agree with you that their death is well deserved, But I'm a little sad about it because back when Circuit City was building new stores at Ponzi-scheme rates, the company I work for was kept busy designing mechanical and electrical for their new stores, and, more recently, remodelings.
They seemed to be pretty efficient, basing all of their construction on prototypes to keep costs down and speed up. But they pulled the typical bureaucratic moves, changing the prototype often and deviating from the prototype on every job - still that's what made the job profitable for us
I always wondered why they felt the need to build so many stores so fast. They oversaturated the market, and there stock price was based on "growth" of little to no underlying value. I believe that even if they didn't have all the problems others are illuminating in this thead, they would still have gone under, just a little slower.
Doesn't the halting problem mean you can never be sure that the OS will always be able step in and kill the offending program after the 30 seconds is up?
Not quite
The offer was more MS stock than cash, and if the merger had gone through, MS stock woud've tanked.
Really, Yahoo did Microsoft a favor by turning it down.
A jury of peers means that a commoner is tried by other commoners, not by noblemen, and noblemen are tried by similar noblemen, not commoners. That reduces the chances of verdicts that are about "stickin' it to the rich bastard", or "teach the rabble a lesson", rather than the facts and laws.
AS another poster said below, 3D acceleration is a must for serious CAD work. And it's also good for the AutoCAD crap we do where I work.
Being a mechanical engineer in the construction industry (what's left of it, anyway) I would be willing to bet that the way builders build buildings is not much better than the way programmers write programs.
Code plan review and building inspections largely consist of filling out forms, having an architect/engineer/contractor's signature in the appropriate places, adding statements that some particular part of the code is being followed, along with a generous helping of checks to see that more or less arbitrary rules are enforced, and the occasional check to see that the numbers add up. Of course, structural designs for high rises may get a more useful review compared to architectural review of a one-story strip mall using typical designs.
While building codes are no subsitute for good design, they're (bad analogy coming) like the documentation for a programming language - if you don't follow them, you won't be able to build your project.
One final point, before I get too cynical, poor documentation is not just found in code, one of the most common weaknesses of blueprints is poor documentation.
"It's a race. Whoever is first is first."
You were three minutes late.
To be clear, that is not because of the eleectoral college.
That is because those states use a winner-take-all strategy to try to gain more influence.
States could just as well decide to apportion the electors proportionally or perhaps send the winners of county-by-county races to the electoral college.
The Electoral College was set up so that you could vote for a local politician who you would know better than some distant presidential candidate, and so that big states could not run roughshod over the smaller states. (they were considered independent states.)
Soon enough, though, states tried to gain more power by throwing all of their electoral college to a single candidate. This is what seems to be objectionable and which creates incentives for some non-democratic tactics and strategy.
You are confusing the majority of area on a geographic map with the majority of voting population,
NY state is blue.
Ummm...yes? One's correct and one's incorrect. ...
Ummm . . . no.
There are a lot of engineering situations with numbers like that where neither are exactly correct and neither is more wrong than the other.
The range of acceptable accuracy may be much greater than the difference in results, and the unknowns in possible inputs may be much more important than the accuracy of calculation of outputs.
As long as you are going to eat anyway, it's still a net gain in lowering greenhouse gases to get your exercise from your method of transport.
Which is why most houses come with bathroom exhaust fans, kitchen range exhaust fans, and openable windows.
Around here (Illinois, USA), roads are variously funded by combinations of property taxes, tolls, gas taxes, and income taxes.
I agree that law enforcement can be wasted on minor vices, but a lot of laws which involve non-violence need to be enforced, such as traffic, fraud, corruption, health codes, etc.
Again, around here, schools are funded by combinations of township property taxes, state lottery, income, and other taxes.
In my limited experience, there is a lot of loafing at private jobs, too, but government is a little more hamstrung by (mostly necessary) laws that are supposed to ensure fairness and reduce corruption.
Think of the seedlings!