On one of the islands on the North end of the atoll, there was older computer equipment at the deep space tracking radar and the backup power supplies were motor/generator sets with big flywheels. If the power plant went down, the big flywheels kept things on while a backup generator could be started up. There was a lot of really cool old stuff out there at the missile range. ^_^
TDD
Yes, I misunderstood you incorrectly. Lieberts do use chilled water to cool air, precisely because water has a fairly high specific heat (and it's cheap). I don't remember if the X-MP uses boiling freon, or not, but the reason it's used is because it's inert (and the boiling point can be engineered). In the '70s, we used freon to cool chips. A 100-chip, about 4" x 4" module was encapsulated in freon. On the back side was a water-freon heat exchanger. The chips on a vertical surface inside the module, covered in freon. The freon was set to boil at 85C, the optimum temperature for the circuits. Neat stuff, until they "discovered" that boiling was the opposite of distilling. All the bad stuff gets left behind (can you say, "black plague"?).
That idea was junked in favor of one that use helium. ;-)
Was the freon R-11 perchance? R-11 is a liquid at cool room temps. I think it boils at about 75°F and you can get a thrill by dipping your hand into the liquid because it will come out clean. The stuff was often used as a cleaner instead of a refrigerant in centrifugal chillers. I believe it murdered more cute little ozones than any other refrigerant so production stopped in 96. Being a good cleaner, was the high boiling point Freon you were using dissolving elements in the modules? O_o
Oh yea, did you have problems sealing in the Helium? ^_^
TDD
FC86 (I have no idea why I remember that). the boiling point was right at
85C, IIRC.
No, it wasn't dissolving anything it just couldn't be made clean enough. Any residual contamination was left right on the chips, in the worst possible location.
You bet. It even diffuses through the aluminum module. They were used in every IBM mainframe for more than ten years, though.
No kidding. I wrote that a few days ago and just came back to the thread. Wow, almost like a drug induced dream.
I think you miss the whole point of the system. It *IS* going to reduce the peak because that's the driver determining whether to turn off *any* houses. If the algorithm says "we're peaking according to the powermeter" it starts to turn off AC units and continues to do so until the algorithm says "you've turned off enough and the power output meter is now back down where we want it". It will continue to iterate that cycle till it starts to drop off the peak and then it turns AC's back on. Of course it's not going to pick YOUR system and keep it off for 3 hours, it's going to spread the *off* time over the millions of houses, 10 minutes at a time. And yes, the houses turned off will each get a tiny bit hotter, ... if that were not the case their AC would not have been needed.
Doesn't matter, the algorithm will have taken that into account and each time one it turned back on, another house somewhere else gets turned off unless the "master power meter" says it's started dropping off the peak. Not only will another house get turned off as a replacement for the one that was just turned back on but if the system is still "peaking" an additional house will get turned off. That's the beauty of this kind of system, it's able to spread the pain out over such a large number of houses, for so short a time at each individual house, that no one house even notices the 0.3 degree rise in temperature for that one hour slot.
Off course it does, otherwise why wouldn't you simply put a timer on your AC to turn it off 10 minutes out of every run hour just to save money. You're not seeing the small picture at the house end nor the big picture at the system end.
Ok, you've just proved my point. If load shedding worked on air conditioners, everyone would just power them off for 10 minutes per hour and save on their power bills. The fact is that it doesn't work. Worse, it synchronizes the loads.
BTW, did it really take you two weeks to read my post?
No, I didn't miss anything. The system doesn't work unless they're going to shed loads long enough for the *average* temperatures to get significantly higher. Ten minutes isn't going to do anything except synchronize the load (the worst possible outcome).
Then you've done exactly nothing. The house you're just turning back on
*will* come on. It's duty will not have changed. Its total power will not have changed, except for the 10-minute lag.Except it doesn't work.
Your opinion of "what they should be" and what the individual wants is totally irrelevant. If one wants the temperature either higher or lower than someone else that's nobody's business but the one who pays the bill. We don't have any Temperature Police... yet.
Yes, there was a 2 week gap.
All I can say is we will have to disagree. The power company seems to think it works and they are the ones who know how much power is being produced and consumed as well as when and where.
No, the power company has convinced you that there is a free lunch. You're willing to go along with their scheme to control you. Reality won't be so "free", as that is what you will be giving up.
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