机构地区: 天津大学机械工程学院
出 处: 《科技导报》 2012年第32期46-50,共5页
摘 要: Kalina地热发电循环的首次运用是在2000年7月的冰岛胡萨维克。运行两年后通过测试,Kalina循环被认为是利用中低温热能最具应用前景的方式之一。本文通过工程方程求解器EES编制计算软件,完成了系统循环过程的模拟计算,计算结果与实际运行参数吻合较好。在此基础上,对影响Kalina地热发电热力循环效率的汽轮机入口压力和氨的质量浓度进行了分析。同时,也对汽轮机的安全运行范围进行了计算。最后,分析了系统的火用损失。 In July 2000, Kalina cycle is first time used in Husavik, Iceland and is considered to be one of the most promising ways for utilizing the low-temperature heat sources. By using the software of EES, a calculating program is compiled to simulate the cycle process and the results have fitted with the actual operating parameters quite well. On this basis, the influence factors, such as turbine inlet pressure and mass fraction of ammonia which associated with the cycle efficiency are analyzed. In addition, the safe operating range of turbine is calculated and the exergy loss is sized up.
领 域: [动力工程及工程热物理]