| With the contradiction between energy consumption and environmental governance is becoming more and more prominent,to strengthen the development of clean energy has become an inevitable trend of the future society.In this paper,lying in the foundation of the technology of solar PV/T comprehensive utilization,a solar photovoltaic photothermal comprehensive utilization device is designed,a heating and ventilation system with three functional modules of solar heat collection and heating,solar water collection and solar power storage is constructed.Five operation modes are designed to meet different needs.Based on the transient simulation software TRNSYS,taking the living room of a typical residential building in Xi’an as an example,this paper studies the heat load of the example in heating season,designs the control strategy under different operation modes,establishes the simulation model of the system of PV/T heating and ventilation and analyzes the system performance of heating season,non-heating season and typical working days of heating season.The annual power generation of the system is 882.63 kW·h,the heat generation is 427.06 kW·h,compared with the single PV system,the power generation is increased by 21.33%.The system is optimized according to the optimal azimuth angle and installation inclination angle of the PV/T collector and the area of the PV/T collector.The performance of the system and the single PV system and the adaptability of different regions are compared.Compared with domestic air-conditioning heating,municipal central heating,coal-fired heating and so on in terms of economic and environmental benefits Through the above research,it is found that the system can not only improve the power generation efficiency but also meet the heating demand,which has certain practical significance and better economic and environmental protection benefits. |
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