This has been discussed before on Ars, such as at https://arstechnica.com/civis/threa...ost-efficient-heat-pump-in-the-world.1501605/, and https://arstechnica.com ...
Here’s what you’ll learn when you read this story: Scientists created an engine made of only silica particles suspended an electric field, and cranked temperatures up high enough to rival the Sun’s ...
Gas engine-driven heat pump systems integrate a combustion engine with conventional vapor compression technology to provide heating and cooling while utilising waste heat recovery. These systems offer ...