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Newspaper Article
Here's the science
2008
Overview
That reverse conversion carries an efficiency penalty, with only some of the heat input being able to be obtained as work output, with the difference being in the form of a heat rejection to a necessarily lower temperature. (All thermal-input engines, such as spark-ignition, diesel, gas turbines and steam turbines, operate under this constraint.) If he were to undertake careful measurements on his refrigerator, he would find that the heat output from the condenser coil at the back of the refrigerator exceeds the electrical input to the refrigerator's compressor. Therefore, it is very likely that he already has a heat pump operating in his home, in contradiction to what he believes to be possible.
Publisher
Stuff Limited
Subject
