太阳能吸收式串联流程制冷系统与性能分析

本文提出了一种串联流程的以太阳能与燃气双热源供热的溴化锂吸收式制冷系统。介绍了当前太阳能吸收式制冷的发展概况。对双热源制冷系统原理进行介绍,简述了制冷机内工质循环流程,并模拟分析了系统的热力性能,得到高压发生器与低压发生器在不同放气范围时系统制冷系数与双热源的供热分配情况。分析了一天内不同时段制冷系统运行特性在不同太阳辐照度下的变化特点。结果证明太阳能与燃气双热源串联流程溴化锂吸收式制冷方案具有节能高效的优势。

Solar driving series process refrigeration system and performance analysis

This paper presents a series process, solar/gas driving double effect lithium bromide absorption refrigeration system. The current development status of the solar absorption refrigeration system was described. The operation principle of the double source refrigerator is introduced, working fluid circulating process is described, and thermal performance of the system is analyzed by simulation, obtaining COP and dual heat source demand distribution in different deflated range of high and low pressure generator of the absorption system. The refrigeration system operating performance is researched under different solar irradiance of the different times of a day. The results proved that a series process, solar/gas driving double effect lithium bromide absorption program has the advantage of energy efficient, and broad prospects for development.