FIELD: heat accumulators; may be used as heat sources for prestarting heating of internal combustion engines and in accumulation of heat energy of boiler units, heat energy storage and supply during peak consumption periods. SUBSTANCE: used in accumulator is not only latent melting heat but large heat capacity of mixtures on the basis of lithium nitrate. The accumulator has external and internal bodies filled with heat accumulating members and pipeline for circulation of heat carrying medium and additional tube for charging heat carrier. Pipeline and tube are embraced by heat accumulating members and made of metal similar to metal of body - stainless steel. EFFECT: higher efficiency. 2 cl, 1 dwg
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