CO2 turbomachinery is not scalable to less than perhaps a few hundred kW due to the extremely high density of CO2 (100's of times air density), and very expensive seals. In a distributed generation LENR world it will have pretty limited applications; maybe aircraft, trucks, trains and ships, but with Gas turbines so simple (no radiators required) and heat so cheap I don't think you would bother with CO2.
On 2 December 2011 00:17, Aussie Guy E-Cat <[email protected]> wrote: > Quote: "The Brayton cycle could yield 20 megawatts of electricity from a > package with a volume as small as four cubic meters." Wow 1.6 x 1.6 x 1.6 > mtrs for 20 Ac MWs at 46% thermal to electrical energy conversion! Another > total game changer. The good news just keeps on happening. So much for 2012 > being the end of the world. Baby it is just starting to come together. We > are on steroids and moving at light speed into a new era of thermal and > electrical energy production. Jouni thanks for that amazing link. You made > my day. > > AG > > > > On 12/2/2011 10:22 AM, Jouni Valkonen wrote: > >> I am a great fan of this Cyclone engine. There is also similar >> emergencing technology that uses super critical carbondioxide instead of >> super critical water. The main benefit of going into super critical is that >> the efficiency can go up to 46% for heat engine. And also with carbon >> dioxide temperatures can be as low as 250-300 °C. >> >> *Supercritical Carbon Dioxide Brayton Cycle Turbines Promise Giant Leap >> in Power Generation* >> ScienceDaily (Mar. 4, 2011) — /Sandia National Laboratories researchers >> are moving into the demonstration phase of a novel gas turbine system for >> power generation, with the promise that thermal-to-electric conversion >> efficiency will be increased to as much as 50 percent -- an improvement of >> 50 percent for nuclear power stations equipped with steam turbines, or a 40 >> percent improvement for simple gas turbines. The system is also very >> compact, meaning that capital costs would be relatively low./ >> >> http://www.sciencedaily.com/**releases/2011/03/110304090459.**htm<http://www.sciencedaily.com/releases/2011/03/110304090459.htm> >> >> This water based Cyclone engine should be in every aspect (moving parts, >> friction, noise, vibrations, efficiency, weight, pollution, and waste motor >> oil) at least twice if not thrice as good as traditional internal >> combustion engine. If someone would invent an internal combustion engine >> today, it would be ridiculed as impossible, due to unsurpassing material >> and engineering challenges. External combustion or electric engines are >> just way too much simple and easy technologies compared to to internal >> combustion engines. >> >> –Jouni >> > >
