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Heat pumps are important due to their efficiency and a target of climate neutrality. They also reduce the emissions of carbon dioxide. This article deals with the smart mini hybrid heat pump, which is planned to use for heat gain in summer, energy accumulation in the ground storage, and further consumption in winter. This heat pump can get heat from the surroundings or solar collectors. Heat pump water-water has been used in this article. Its input and output parameters were measured, a coefficient of performance ...

Loop heat pipe is ingenious cooling device to remove waste heat from power electronic elements used in the specific applications e. g. where does not require forced cooling and where is not space for placement a big air cooler. Loop heat pipe transfer heat through the phase change of the working medium circulating in closed loop of the loop heat pipe. Ingenious of this device is in the heat transport without using any moving elements and gravity field. This work deal with experimental evaluation of cooling efficie...