Optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working medium
Ocean thermal energy conversion is a new energy technology that utilizes the temperature difference conditions of seawater to generate electricity. This paper focuses on the closed cycle of ocean thermal energy conversion using ammonia as the working fluid. Based on pressure energy utilization devic...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1472980/full |
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| author | Mingqian Tian Yanni Yu Yunxing Hou Yun Chen Li Zhang Yanjun Liu Yanjun Liu |
| author_facet | Mingqian Tian Yanni Yu Yunxing Hou Yun Chen Li Zhang Yanjun Liu Yanjun Liu |
| author_sort | Mingqian Tian |
| collection | DOAJ |
| description | Ocean thermal energy conversion is a new energy technology that utilizes the temperature difference conditions of seawater to generate electricity. This paper focuses on the closed cycle of ocean thermal energy conversion using ammonia as the working fluid. Based on pressure energy utilization devices such as pressure exchangers, hydraulic turbines, and ejectors, three methods are proposed to recover and utilize the pressure energy of the lean ammonia solution, in order to improve the thermal efficiency and systematic performance. By analyzing and comparing the performance of the cycle, it can be concluded that all three methods can achieve a utilization of pressure energy, and under the same conditions, the highest thermal efficiency of the ejector cycle is 5.71%. |
| format | Article |
| id | doaj-art-d5fec38137e948d9960512bb93da77ca |
| institution | Kabale University |
| issn | 2296-598X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj-art-d5fec38137e948d9960512bb93da77ca2025-01-23T06:56:15ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2025-01-011210.3389/fenrg.2024.14729801472980Optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working mediumMingqian Tian0Yanni Yu1Yunxing Hou2Yun Chen3Li Zhang4Yanjun Liu5Yanjun Liu6Institute of Marine Science and Technology, Shandong University, Qingdao, ChinaInstitute of Marine Science and Technology, Shandong University, Qingdao, ChinaInstitute of Marine Science and Technology, Shandong University, Qingdao, ChinaInstitute of Marine Science and Technology, Shandong University, Qingdao, ChinaSouthern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, ChinaInstitute of Marine Science and Technology, Shandong University, Qingdao, ChinaKey Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, ChinaOcean thermal energy conversion is a new energy technology that utilizes the temperature difference conditions of seawater to generate electricity. This paper focuses on the closed cycle of ocean thermal energy conversion using ammonia as the working fluid. Based on pressure energy utilization devices such as pressure exchangers, hydraulic turbines, and ejectors, three methods are proposed to recover and utilize the pressure energy of the lean ammonia solution, in order to improve the thermal efficiency and systematic performance. By analyzing and comparing the performance of the cycle, it can be concluded that all three methods can achieve a utilization of pressure energy, and under the same conditions, the highest thermal efficiency of the ejector cycle is 5.71%.https://www.frontiersin.org/articles/10.3389/fenrg.2024.1472980/fullocean thermal energy conversionzeotropic working fluidthermodynamic cyclepressure energyefficiency improvement |
| spellingShingle | Mingqian Tian Yanni Yu Yunxing Hou Yun Chen Li Zhang Yanjun Liu Yanjun Liu Optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working medium Frontiers in Energy Research ocean thermal energy conversion zeotropic working fluid thermodynamic cycle pressure energy efficiency improvement |
| title | Optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working medium |
| title_full | Optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working medium |
| title_fullStr | Optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working medium |
| title_full_unstemmed | Optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working medium |
| title_short | Optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working medium |
| title_sort | optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working medium |
| topic | ocean thermal energy conversion zeotropic working fluid thermodynamic cycle pressure energy efficiency improvement |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1472980/full |
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