太陽能光電—熱一體化與熱泵耦合系統(tǒng)的實(shí)驗(yàn)研究
[Abstract]:Photovoltaic (PV) and heat pump (HP) are very important technologies for energy saving and carbon emission reduction. Solar photovoltaic photothermal comprehensive utilization (PV-T) technology has been developed rapidly. This technology combines solar photovoltaic power generation technology with solar thermal energy collection technology to achieve higher energy efficiency. The system not only converts solar energy into electric energy, but also obtains heat energy, which obviously has higher energy benefits than pure solar photovoltaic power generation. In addition, the cooling fluid can take the heat away from the photovoltaic cells, which can cool the cells, improve the photoelectric conversion efficiency of the system, and prolong the service life of the solar cells. Solar photovoltaic-thermal integration (PV-T) systems sometimes produce hot water temperatures that do not reach the water temperature needed for life, but can provide hot water at higher temperatures if combined with heat pumps. The practicability of the system and the reliability of heating are improved obviously. In order to make full use of solar energy, the integration of solar photoelectricity and heat pump can be coupled with heat pump. The main work of this paper is as follows: (1) the coupling system of PV-T and heat pump is proposed. The PV-T subsystem converts solar energy into electric energy and thermal energy, which is used as the low temperature heat source for heat pump operation. (2) the experimental installation of the coupling system of PV-T and heat pump is built. The performance of the solar cell is tested and compared, and the photoelectric and thermal efficiency of the PV-T system is tested. And the performance of the heat pump is tested. (3) the theoretical model of the coupling system of PV-T and heat pump is established, which is combined with the experimental data of the heat pipe PV-T system and the heat pump system. The thermal performance of the coupling system is calculated and analyzed. The matching relationship between solar cell area and heat pump parameters is analyzed and energy saving suggestions are put forward.
【學(xué)位授予單位】:湖南大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TU83;TU18
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