Robert Lynn <robert.gulliver.l...@gmail.com> wrote: -Micro-turbines (capstone et al) have low efficiency compressor and turbines > and under 100kW probably won't work at all until the temperatures are > >600°C, and then only with very low efficiency (<15%).
I have heard that a Rossi reactor can go to 600°C. It works well at that temperature. Most cold fusion reactions work better at higher temperatures. Proton conductor-types do not work at all at lower temperatures. They do not conduct protons (load). Anyway, efficiency does not matter much with cold fusion because the heat costs nothing. The only reason you need a modicum of efficiency is to keep the waste heat down to a reasonable level. You would not want a 30 kW home generator that produces 300 kW of waste heat. It would make the air around the house too hot. If it was compact, it would be dangerously hot, and might burn someone or start a fire, and if it was not compact it would take up a lot of space. > -Micro steam turbines are very inefficient, (steam's high specific heat > requires multi-stage due to blade speed limits) and with small sizes are far > more prone to water erosion damage. As I said, efficiency does not matter, but longevity and the lifetime cost of the equipment does matter. See chapter 14 of my book. - Jed
