氨吸收式串联型制冷和动力复合循环及敏感性分析  

Series Connected Ammonia-Water Refrigeration and Power Combined Cycle and Its Sensitivity Analysis

作　　者：刘猛[1] 张娜[1] 蔡睿贤[1] 

机构地区：[1]中国科学院工程热物理研究所,北京市海淀区100080

出　　处：《中国电机工程学报》2006年第1期1-7,共7页Proceedings of the CSEE

基　　金：国家863高技术基金项目(2002AA503020);国家自然科学基金重点基金项目(90210032)~~

摘　　要：该文对采用氨水混合工质的串联型制冷/动力复合循环进行了模拟计算分析。基础循环主要参数为:氨水工质浓度为0.3,透平进气参数为400℃/8.4MPa,热源为415℃/0.1043MPa的热空气。循环采用火用效率、经济火用效率、功冷比作为评价准则。对透平进气温度、进气压力、再沸器出口工质温度、冷却水温度等关键循环参数的变化对循环热力性能的影响进行了研究,结果表明分别存在最佳透平进气温度及最佳再沸器出口工质温度使得火用效率和经济火用效率达到最大。此外,研究表明循环最佳基本工质浓度随冷、电价格比的变化而变化。In this paper, a simulation calculation and analysis has been conducted to the series connected ammonia-water power/refrigcration combined cycle. The main parameters of the base case cycle are chosen as followings： the ammonia mass fraction is 0.3, the turbine inlet parameters are 400℃/8.4MPa, the parameters of the heat resource air are 415℃/0.1043MPa. The exergy efficiency, the economic exergy efficiency and the power/refrigeration ratio are adopted as the evaluation indexes. A study has been carried out about the effect of some-key cycle parameters on the cycle thermal performance, the parameters include the turbine inlet temperature and pressure, the reboiler outlet temperature, the cooling water temperature. The results show that there are an optimal turbine inlet temperature and an optimal reboiler temperature existing, which separately maximizes the exergy efficiency and the economic exergy efficiency. Furthermore, it is found that the optimal basic working solution concentration varies with the price ratio of refrigeration to power.

关 键 词：热能动力工程 制冷/动力复合循环 氨水混合工质 串联型 敏感性分析 

分 类 号：TK472[动力工程及工程热物理—动力机械及工程]