Vacuum heat accumulator

This  heat accumulator is  tanks in tank, in the space between them is created an average vacuum (0,1 mBar) and filled with insulating filling (λ = 0.007-0,01 W/m∙K).

Effective heat accumulation due to minimal heat loss. Vacuum insulation  replaces traditional to 100 cm urethane-foam isolation. Thermal conductivity of filling is in the range 0,007 – 0,01 W/m∙K, when thermal conductivity of rock wool – 0,06 W/m∙K, and urethane-foam 0,04 W/m∙K. This heat accumulator with powder-vacuum insulation occupies about the same space as traditional models of similar size.

Vacuum heat accumulator :

• capacity of 2000-10000 liters;
• outside use;
• underground installation;
• up to 10 times better thermal insulation in comparison with analogues;
• long-term accumulation of heat;