Depósitos/tanques com isolamento em perlite e vácuo, perdas de 0,23ºC por dia com diferencial de 90ºC interior/ambiente exterior.
"Our 15 m³ pilot tank operates with a heat loss rate of 1.98 W / K and loses only 0.23°C per day at a temperature difference of 95 ° C inside and 0 ° C outside,"
Parece que o ganho deste sistema é maior quanto maior o tanque vs isolamento típico actual.
"The greater the storage capacity, the more significant the differences between a tank insulated with polyurethane foam and a vacuum insulation," Reuß explained in Berlin."
https://www.solarthermalworld.org/conte ... rm-storage
