可再生能源2025，Vol.43Issue(4)：458-467,10.
基于海洋温差能的发电-空调综合系统的性能试验研究
Performance test study of an integrated power generation-air conditioning system based on ocean temperature difference energy
摘要
Abstract
To address the issues of low thermal efficiency and poor economy in the ocean temperature difference-driven ocean thermal energy conversion(OTEC)system,OTEC combined with air conditioning(OTEC-AC)test system was designed and built.The system utilizes the cold energy of deep seawater in a graded manner by generating electricity and then cooling the air,thus significantly improving the conversion efficiency of ocean temperature difference energy.Performance evaluation metrics such as expansion output power,refrigeration capacity,and overall thermal efficiency were defined based on thermodynamic principles.Experimental tests were conducted to analyze the performance variations of the OTEC-AC system under different operating conditions.A comparison between OTEC-AC and standalone OTEC systems was also conducted.The results show that:the optimal expansion pressure ratio exists in the power generation system when the isentropic efficiency of the corresponding expander reaches a peak of 21.83%;lowering the deep sea water temperature and increasing the chilled water flow rate can significantly improve the performance of the OTEC-AC system,and when the deep sea water temperature is lowered from 9℃to 4℃,the integrated exergy efficiency of the system increases from 47.25%to 51.60%;Under the same operating conditions,the OTEC-AC system has a power generation capacity of 97 W and a cooling capacity of 5 386 W.The thermal efficiency of the system increases from 1.21%to 17.60%after conversion compared to the stand-alone OTEC system.关键词
海洋热能转换/梯级利用/热效率/压比Key words
ocean thermal energy conversion(OTEC)/step utilization/thermal efficiency/pressure ratio分类
能源与动力引用本文复制引用
尹先梅,高文忠,王飞..基于海洋温差能的发电-空调综合系统的性能试验研究[J].可再生能源,2025,43(4):458-467,10.基金项目
国家自然科学基金(51806136) （51806136）
上海市科学技术委员会重点项目(18040501800,22ZR1426900) （18040501800,22ZR1426900）
上海市深远海"全渗透"能源动力前沿科学研究基地项目. （）
