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A new solar-air multi-source heat pump (SA-MSHP) was designed. According to the technical characteristics of heating performance of SA-MSHP in winter, two important concepts were proposed. The two concepts were “the two heat sources effectively composite heat transfer temperature difference (THSECHTTD)” and “the maximum two heat sources effectively composite heat transfer temperature difference (MTHSECHTTD)”...
Building energy conservation has become an important problem in the world. In China, building energy consumption is 26.7% of total energy consumption. If coupled with the indirect energy consumption, such as housing construction the total building energy consumption accounts for 46.7% of total social energy consumption. Solar water heating system is an effective building energy-saving ways by solar...
A experimental table of new solar-assisted air source heat pump (SA-ASHP) which used the non-homostasis two heat source complex heat exchanger as the core component has been constructed. Based on the national standards, three experimental conditions have been chosen, which the ambient temperature are respectively 7??C, 2??C, -7??C. The experimental results show that the heating performance of the...
Air-source heat pump has air as heat source; the system is simple, low initial investment. But the performance of air-source heat pump fluctuates big with the outdoor air temperature changes, especially in the summer hottest and winter coldest day, the cooling thermal capacity and the efficiency will significantly decline. In order to improve the air-source heat pump efficiency and thermal capacity...
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