| 摘要 |
FIELD: power industry. ^ SUBSTANCE: heat accumulator includes container filled with heat-accumulating phase-transition medium, heat exchange elements arranged in container and tubes with heat carrier, which form coils and have direct contact to heat exchange elements; at that, heat exchange elements are made of metal grid, tubes with heat carrier are corrugated; metal grids with tubes form cassettes; heat carrier in tubes of adjacent cassettes is passed in opposite directions; space between cassettes is filled with metal heat-conducting structure; tubes of adjacent cassettes are located in staggered order; at that, ratio of distance between axes of adjacent tubes and diameter of tubes depending on heat conductivity coefficient of heat-accumulating phase-transition medium in solid state is determined by the specified formula. ^ EFFECT: increasing efficiency of charging-discharging process of accumulator and increasing power capacity of charge-discharge cycles. ^ 3 cl, 4 dwg |
