30 Aug '13, 7pm

And last week's blog (forgot to send link) - on CO2-based heat pumps:

A new generation of CO2 -based heat pumps could avoid the high global warming potential of standard refrigerants and generate much higher temperatures A Mayekawa Unimo air-to-water heat pump installation in Australia. Click to enlarge. Photo Credit: Mayekawa In researching and writing about building products for Environmental Building News over the past twenty-plus years I’ve had an opportunity to cover some fascinating breakthrough products and technologies. One such technology I was writing about a few weeks ago is the use of carbon dioxide as a working fluid for heat pumps . But let me back up with a little context about refrigerants. These are the fluids used in refrigerators, air conditioners, and heat pumps that transfer heat from one place to another in cooling or heating a space. This “vapor-compression-cycle” equipment takes advantage of the principle that compres...

Full article: http://www2.buildinggreen.com/blogs/heat-pump-using-carbo...

Tweets

Energy Solutions: A Heat Pump Using Carbon Dioxide as the Refrigerant

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Is PVC Banned in LEED v4? » a well-reasoned debunking of a needless freakout.

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buildinggreen.com 27 Aug '13, 8pm

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