It seems the use of heat pipes -- regardless of the power vector substance -- would put more geometric constraints on the HotCat than would a molten bath. These constraints might be acceptable given enough engineering but it isn't immediately apparent to me you could take the HotCat we've seen in the photos and adapt it to heat pipes.
On Sat, Dec 28, 2013 at 7:32 PM, Axil Axil <[email protected]> wrote: > I have suggested lithium heat pipes in this role of passive heat control. > It would be even better to use a electronically controlled negative > feedback system to discourage the amalgamation of micro/nano particles > based on temperature. > > http://en.wikipedia.org/wiki/DLVO_theory > > DLVO theory has been used to control the attraction between nano-particles > in many industries. This mechanism might be used to stabilize nanoparticle > formation that are condensing out of plasma at the end of a "mouse run" to > put a leash on the supercritical cat. > > > > > On Sat, Dec 28, 2013 at 8:20 PM, James Bowery <[email protected]> wrote: > >> Rossi says the current HotCat target temperature is around 1000C. >> >> Zinc's boiling point is 907C and melting point is 420C. >> >> So it seems a molten zinc bath kept near its boiling point might be a >> good first-order thermal control with passive characteristics. >> >> If the power were transmitted through vapor reflux to a CO2 heat >> exchanger, the mass flow of zinc between vapor and liquid phases would be >> about 1/2 gram per second for 1kW thermal. >> >> 23.6 kJ/mol;65.38g/mol;1kW?g/s >> >> ([{123.6 * (kilo*joule)} / mole]^-1 * [{65.38 * gramm} / mole]) * (1 * >> [kilo*watt]) ? gramm / second >> = 0.5289644 g/s >> >> >
