太阳能双效吸收式空调的效益和经济性分析
Feasibility analysis of solar doubleeffect absorption chiller
摘要：
提出了太阳能双效溴化锂吸收式制冷和压缩式制冷系统在夏季联合运行的方案，利用槽式太阳能集热器集热驱动双效溴化锂吸收式机组，承担夏季空调的尖峰负荷，减少空调的能耗与高峰用电负荷。通过测试槽式太阳能集热器效率的变化曲线，根据测试数据利用TRNSYS软件建立太阳能吸收式制冷与压缩式制冷联合运行模型，进行夏季运行工况模拟，获得联合运行系统的能耗数据。研究结果表明，太阳能吸收式系统承担的负荷比例越小、设计集热面积的辐照度越大，联合运行系统的投资回收期越短，费用年值越低。
Abstract：
Presents a combined operation system of solar doubleeffect LiBr absorption cooling and compression cooling. Adopts the parabolic trough collector (PTC) to drive the doubleeffect LiBr absorption unit and undertake the peak load in summer, so as to reduce the peak energy consumption and electricity of air conditioning system. Tests the change curve of PTC efficiency, establishes a combined operation system of solar doubleeffect LiBr absorption cooling and compression cooling using the experimental data based on TRNSYS model , and obtains the energy consumption data by simulating the operation condition in summer. The results show that the payback period of combined operation system is shorter and the total annual cost is lower, when the load ratio of solar absorption system is lower and the irradiance of design collector area is higher.
Keywords:solar,doubleeffectLiBrabsorptionunit,loadratio,collectorarea,peakload,combinedoperation