%0 Journal Article %A Koneva, N. S. %A Konev, S. V. %D 2003 %I Begell House %N 7&8 %P 8 %R 10.1615/HeatTransRes.v34.i7-8.60 %T Special Features of Heat and Mass Exchange in Cryogenic Heat Accumulators %U https://www.dl.begellhouse.com/journals/46784ef93dddff27,37e97012688a992b,3cb5dce07f7d075e.html %V 34 %X We analyze the operation of cryogenic heat accumulators with melting-crystallization phase changes. Numerical investigations are carried out for ethane (Tmel = 90 K), isopentane (Tmel =110 K), and heptane (Tmel = 190 K). We have designed the accumulators the charge and discharge of which is carried out with the aid of a heat pipe, i.e., thermal diode. Experimental investigations of the constructions developed made it possible to optimize the capillary structure with the accumulating medium. The advantages of conical capillaries are shown. %8 2004-04-04