Free Republic
Browse · Search
Bloggers & Personal
Topics · Post Article

To: Nateman
I suspect it’s a scam. A simple Mirror will reflect back sunlight but it won’t make the house any cooler than the temperature of the air.
++++++++++
I'm not sure. What isn't discussed much in the article is the mechanism for converting the heat from, for example, your house into energy in the particular infrared frequency band that will pass unattenuated through the atmosphere to the ultra cold of outer space. Thermodynamically this makes outer space a heat sink for your home. Not bad if they can actually do it.
26 posted on 04/16/2013 8:06:31 PM PDT by InterceptPoint
[ Post Reply | Private Reply | To 12 | View Replies ]


To: InterceptPoint

Basically, you are using space as a heat sink.


33 posted on 04/16/2013 8:20:15 PM PDT by dangerdoc (see post #6)
[ Post Reply | Private Reply | To 26 | View Replies ]

To: InterceptPoint
" particular infrared frequency band that will pass unattenuated through the atmosphere.."

Two problems here. 1) The band they are using, according to the chart they had (~10 microns) is the wavelength the atmosphere itself radiates. (Which is why infrared astronomers have to build high or go into space). 2) Heat flows from hot to cold, not the other way around. The way an air conditioner works is to make a hot compressed fluid. The heat of the compressed gas is hotter than outside so it can flow outside. The fluid is then allowed to expand making it cooler than ambient. The heat from indoors flows into the cool fluid.

52 posted on 04/17/2013 9:10:10 AM PDT by Nateman (If liberals are not screaming you are doing it wrong!)
[ Post Reply | Private Reply | To 26 | View Replies ]

Free Republic
Browse · Search
Bloggers & Personal
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson