海洋温差能ORC系统多目标函数优化研究  

Multi-objective function optimization study on ocean thermal energy organic rankine cycle systems

作　　者：张淑荣[1] 孙业山 王明涛[1] 夏利江[1] 刘启一[1] 

机构地区：[1]鲁东大学能源与动力工程系,山东烟台264025 [2]烟台龙源电力技术股份有限公司,山东烟台264006

出　　处：《可再生能源》2017年第4期621-626,共6页Renewable Energy Resources

基　　金：山东省自然科学基金项目(ZR2014EEP026)

摘　　要：以系统净功、不可逆能量损失等作为目标参数,建立海洋温差能ORC系统多目标函数优化体系,研究蒸发温度、冷凝温度、工质流量、温海水出口温度等对系统性能的影响。研究结果表明:存在最优参数值使得系统性能最优;冷凝温度越高,最优蒸发温度越高,系统目标值越大,系统性能越差;文章所选取的6种工质中,R227ea能耗最低,R141b能耗最高;温海水的适宜出水温度为19~20℃。Take the system net work, the irreversible loss of energy as the target parameters, set up the multi-objective optimization system of organic rankine cycle Systems of ocean thermal energy, study the influences to system performance by evaporation temperature, condensing temperature, flow rate of the working fluid and the outlet temperature of seawater. The results show that optimal parameters of the system exists; the higher of the condensing temperature, the higher of the optimal evaporation temperature, the larger of target value of the system, the worse of the system performance; and R227 ea has the lowest energy consumption, R141 b has the most energy consumption among the selected six working fluids. The optimal seawater outlet temperature is 19-20 ℃.

关 键 词：海洋温差能 多目标优化 ORC系统 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程] P743.4[天文地球—海洋科学]