The fourth comment following the recent posting - 'New generator creates electricity directly from heat' http://physicsworld.com/cws/article/news/2013/dec/09/new-generator-creates-electricity-directly-from-heat
COMMENT: 'maximum Carnot efficiency' A 40% efficiency is nice, but over 90% is only possible by using multiphase coils to increase pressure thereby temperature and consequently, the overall efficiency รง=1-(TC/TH). http://www.youtube.com/watch?v=aRZ---y5E2c - asserts that much higher efficiency is possible, but appears oriented to higher temperatures, and possibly appropriate for aneutronic fusion and rocket thrusters. See 'MULTIPHASE THERMOELECTRIC CONVERTER' http://www.crossfirefusion.com/thermal-to-electrical/multiphase-thermoelectric-converter.html Climeon is working on low temp conversion - http://www.climeon.com/ Hopefully, both are economically viable approaches. -- LP Jones and Alain wrote: > Geeze. looks like they have reinvented the triode. > > From: Alain Sepeda > > it looks interesting (for some time I thought Climeon was working on that, > but it was just a COR/organic rankine) but one problem with thermionic is > that it require huge temperatures, like 700-1700C... > > 700C is acessible to gas+powder LENR today, but not much more... > > > > 2013/12/9 <[email protected]> > > New generator creates electricity directly from heat > > "A new type of thermionic generator that turns heat or light into > electrical energy has been developed by researchers in Germany and the US. > The new design overcomes the "space-charge problem" that has plagued > previous attempts at developing practical devices. The device is about > four times more efficient than previous generators and the new technology > could find use in a range of applications including solar power and the > harvesting of waste heat. > Thermionic generators convert heat or light into an electric current by > using the temperature difference between two metallic plates that are > separated by a vacuum..." > > http://physicsworld.com/cws/article/news/2013/dec/09/new-generator-creates-e > lectricity-directly-from-heat > > Also see previous related post - > "[Vo]:New patent appl for LENR heat-to-electricity coversion" > https://www.mail-archive.com/[email protected]/msg87485.html > > > > > >
