新型太阳能吸收式制冷循环的性能分析

The performance of a novel absorption refrigeration cycle driving by solar energy

在两级溴化锂吸收式制冷循环的基础上,提出了一种由太阳能驱动的新型吸收式制冷循环,并对其进行性能分析。通过大量计算,分析结果表明,在现有太阳能集热器所能提供的热水温度范围内,新型太阳能吸收式制冷循环有较高的热力系数。该循环系统的中间压力、中间浓度对系统的热力系数和热源可利用温差有较大影响。

A novel absorption refrigeration cycle driving by solar energy is presented,based on the conventional two-stage absorption refrigeration cycle.The performance of the new cycle are calculated and analyzed.By a mass of calculation,the results show that within the capable temperature range of conventional solar energy collectors,the coefficient of performance of this cycle is higher than that of the conventional two-stage absorption refrigeration system.The intermediate pressure and the intermediate concentrate of this cycle have considerable effects on the coefficient of performance and the available temperature difference of heat resource.