太阳能驱动的溴化锂吸收式制冷性能模拟研究

Simulation study of solar-powered lithium bromide absorption refrigeration

利用AspenPlus软件搭建系统仿真模型,系统循环流程采用有限Wegstein收敛方法并选用ELECNRTL物性方法作为溴化锂溶液物性计算方法,对系统的驱动热源流量、溶液换热器温差、溴化锂浓度溶液分配比例等参数进行研究;进而得出参数变化对系统性能的影响规律。

In this paper,Aspen Plus software is used to build a system simulation model,and the system cycle process adopts the finite Wegstein convergence method and the EELCNRTL physical property method as the physical property calculation method of lithium bromide solution,and analyzes and studies the driving heat source flow,solution heat exchanger temperature difference,lithium bromide concentration solution distribution ratio and other parameters of the system.Then,the law of influence on system performance is obtained.