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OPERATION CHARACTERISTICS OF A SMART MINI HYBRID HEAT PUMP USED FOR THE ENERGY ACCUMULATION
Abstract
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 (COP) was calculated and also a regression model was created based on the detected operation parameters. The main parameter affecting the operation characteristics of the used heat pump was the temperature of the energy source. The smart mini hybrid heat pump was tested at different temperatures of the heat source. The most suitable source temperature for this heat pump was around 14C with the recorded the highest COP value of 6.71. Based on the results, the smart mini hybrid heat pump can be used to accumulate heat into the accumulation layer and its subsequent removal for heating purposes. When using a combination with thermal solar panels, it is possible to replace the heat pump with a circulation pump in the summer mode. In the winter, it is possible to use photovoltaic panels to produce electricity that would drive the heat pump, which would have a positive effect on the overall energy and emission balance of facilities depending on the location of the building.
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