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Reply to "Paris Olympic Village is a Disgrace"
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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]The ac was a mistake. They were trying to set an energy efficiency positive example by pumping groundwater through the floors like a radiant system. They said it was supposed to keep rooms 10 degrees below ambient. But they didn’t use it as a heat sink for refrigeration systems like normal geothermal heat pump systems. It wouldn’t have used that much more electricity. They could’ve done that and kept the athletes comfortable, while still bragging about the green’ness of it. And it would have been an example people all over the world could have followed. Instead it’s a black eye. [/quote] What do you mean by “they didn’t use it as a heat sink”?[/quote] Normal geothermal systems (like the service vans you see on the beltway) use a water loop underground where the temps are about 55 deg year round. The ground either cools or heat the water, depending on the season. That water is then run through a heat exchanger on the pumps refrigeration system. It’s way more efficient than using 95 def air in summer and 25 degree air in winter like a normal heat pump does. The French decided to skip the refrigeration system part and only use the 55 deg water in a bid to be super dooper green. on top of it they put in the flooring instead of normal air handlers. It’s perplexing and it actually cost them more in electricity because all the athletes brought in portable air conditioners. [/quote] so the french are dumb with science as well wow[/quote] They knew the science. They made a decision that it was worth it for being people to uncomfortable in rooms 10 def below ambient to save a little bit more electricity. What’s strange is most of their electricity is from nuclear, so it has almost no global warming effect.[/quote]
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