光伏-光热-风冷热泵式供能植物工厂空调系统设计

Design of an integrated energy supply system based on photovoltaic-thermal-air-cooled-heat-pump for air conditioning of plant factory

针对目前植物工厂供能方式单一、盈利性与可持续性差等问题,文章设计了太阳能光伏-光热-风冷热泵联合供能的植物工厂空调系统。该系统采用风冷热泵为植物工厂提供冷量,太阳能集热为植物工厂提供热量以及太阳能光伏供部分植物工厂的用电。通过确定植物工厂的冷热负荷,选型制热量和制冷量分别为8.5 kW和7.2 kW的风冷热泵,通过计算集热器的集热面积确定光伏光热一体化组件的数量,确定了光伏光热一体化组件的发电量及光伏能够提供的植物工厂电耗百分比,最后分析了配置光伏光热一体化组件的植物工厂投资经济性与碳减排潜力。

This work addresses the limitations of typical plant factories,such as their reliance on single energy sources,low profitability,and limited sustainability.An air conditioning system based on combined solar photovoltaic-thermal-air-cooled-heat-pump for plant factory is proposed.Air-cooled heat pump and solar photothermal is utilized for cooling and heating of the plant factory,respectively.And solar photovoltaic covers the factory’s electricity consumption partially.Based on the cooling and heating load of the plant factory,an air-cooled heat pump with 8.5 kW heating capacity and 7.2 kW cooling capacity is selected.The required number of photovoltaic-thermal(PV/T)modules is determined by calculating the collection area of the PV/T collector.The output power of PV/T modules and the percentage of plant factory power consumption that the PV/T modules can cover were calculated.Additionally,the economic viability and carbon reduction potential of the plant factory system equipped with PV/T modules is analyzed in this work.