制冷技术

太阳能制冷是一种有前景的环保制冷技术,它能满足全球空间制冷日益增长的需求。太阳能制冷可以通过多种技术途径来实现,其中有两种主要的商用太阳能制冷方式:由光伏(PV)驱动的蒸气压缩制冷机(光电制冷)和由太阳能集热器收集热量驱动的制冷机(光热制冷),两者的系统效率值相差不大。经济分析表明,光伏(PV)系统的投资成本最低,是其他系统的50%。太阳能制冷技术可以减少化石燃料的使用,从而对环境产生非常积极的影响,并且此技术已经成熟,可以与传统制冷技术竞争。

Solar cooling is a promising and environmentally friendly technology that can help meet the growing global demand for space cooling. Solar cooling can be achieved by various technologies. The two main commercial options are photovoltaic(PV)-driven vapour compression chillers and heat-driven cooling machines powered by solar collectors. Thermal cooling equipment can be coupled with various types of solar collectors with different efficiencies and costs. Overall system efficiencies of PV-driven and solar thermal-driven plants may not have such different values. Economic analysis indicates that the investment cost for the PV solution is at least half that of other systems. Solar cooling may have a very positive environmental impact by reducing the use of fossil fuels, and the technology may be considered mature to compete with conventional cooling equipment.