Parametric Optimization of Regenerative Organic Rankine Cycle System for Diesel Engine Based on Particle Swarm Optimization
To efficiently recover the waste heat from a diesel engine exhaust, a regenerative organic Rankine cycle (RORC) system was employed, and butane, R124, R416A, and R134a were used as the working fluids. The resulting diesel engine-RORC combined system was defined and the relevant evaluation indexes we...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2015-09-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/8/9/9751 |
| _version_ | 1828393221100666880 |
|---|---|
| author | Hongjin Wang Hongguang Zhang Fubin Yang Songsong Song Ying Chang Chen Bei Kai Yang |
| author_facet | Hongjin Wang Hongguang Zhang Fubin Yang Songsong Song Ying Chang Chen Bei Kai Yang |
| author_sort | Hongjin Wang |
| collection | DOAJ |
| description | To efficiently recover the waste heat from a diesel engine exhaust, a regenerative organic Rankine cycle (RORC) system was employed, and butane, R124, R416A, and R134a were used as the working fluids. The resulting diesel engine-RORC combined system was defined and the relevant evaluation indexes were proposed. First, the variation tendency of the exhaust energy rate under various diesel engine operating conditions was analyzed using experimental data. The thermodynamic model of the RORC system was established based on the first and second laws of thermodynamics, and the net power output and exergy destruction rate of the RORC system were selected as the objective functions. A particle swarm optimization (PSO) algorithm was used to optimize the operating parameters of the RORC system, including evaporating pressure, intermediate pressure, and degree of superheat. The operating performances of the RORC system and diesel engine-RORC combined system were studied for the four selected working fluids under various operating conditions of the diesel engine. The results show that the operating performances of the RORC system and the combined system using butane are optimal on the basis of optimizing the operating parameters; when the engine speed is 2200 r/min and engine torque is 1215 N·m, the net power output of the RORC system using butane is 36.57 kW, and the power output increasing ratio (POIR) of the combined system using butane is 11.56%. |
| first_indexed | 2024-12-10T07:35:29Z |
| format | Article |
| id | doaj.art-a4c5e60b684c4e6e821863cac1eefb29 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-12-10T07:35:29Z |
| publishDate | 2015-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-a4c5e60b684c4e6e821863cac1eefb292022-12-22T01:57:27ZengMDPI AGEnergies1996-10732015-09-01899751977610.3390/en8099751en8099751Parametric Optimization of Regenerative Organic Rankine Cycle System for Diesel Engine Based on Particle Swarm OptimizationHongjin Wang0Hongguang Zhang1Fubin Yang2Songsong Song3Ying Chang4Chen Bei5Kai Yang6College of Environmental and Energy Engineering, Beijing University of Technology, Pingleyuan No. 100, Beijing 100124, ChinaCollege of Environmental and Energy Engineering, Beijing University of Technology, Pingleyuan No. 100, Beijing 100124, ChinaCollege of Environmental and Energy Engineering, Beijing University of Technology, Pingleyuan No. 100, Beijing 100124, ChinaCollege of Environmental and Energy Engineering, Beijing University of Technology, Pingleyuan No. 100, Beijing 100124, ChinaCollege of Environmental and Energy Engineering, Beijing University of Technology, Pingleyuan No. 100, Beijing 100124, ChinaCollege of Environmental and Energy Engineering, Beijing University of Technology, Pingleyuan No. 100, Beijing 100124, ChinaCollege of Environmental and Energy Engineering, Beijing University of Technology, Pingleyuan No. 100, Beijing 100124, ChinaTo efficiently recover the waste heat from a diesel engine exhaust, a regenerative organic Rankine cycle (RORC) system was employed, and butane, R124, R416A, and R134a were used as the working fluids. The resulting diesel engine-RORC combined system was defined and the relevant evaluation indexes were proposed. First, the variation tendency of the exhaust energy rate under various diesel engine operating conditions was analyzed using experimental data. The thermodynamic model of the RORC system was established based on the first and second laws of thermodynamics, and the net power output and exergy destruction rate of the RORC system were selected as the objective functions. A particle swarm optimization (PSO) algorithm was used to optimize the operating parameters of the RORC system, including evaporating pressure, intermediate pressure, and degree of superheat. The operating performances of the RORC system and diesel engine-RORC combined system were studied for the four selected working fluids under various operating conditions of the diesel engine. The results show that the operating performances of the RORC system and the combined system using butane are optimal on the basis of optimizing the operating parameters; when the engine speed is 2200 r/min and engine torque is 1215 N·m, the net power output of the RORC system using butane is 36.57 kW, and the power output increasing ratio (POIR) of the combined system using butane is 11.56%.http://www.mdpi.com/1996-1073/8/9/9751diesel enginewaste heat recoveryregenerative organic Rankine cycle (RORC)particle swarm optimization (PSO)various operating conditions |
| spellingShingle | Hongjin Wang Hongguang Zhang Fubin Yang Songsong Song Ying Chang Chen Bei Kai Yang Parametric Optimization of Regenerative Organic Rankine Cycle System for Diesel Engine Based on Particle Swarm Optimization Energies diesel engine waste heat recovery regenerative organic Rankine cycle (RORC) particle swarm optimization (PSO) various operating conditions |
| title | Parametric Optimization of Regenerative Organic Rankine Cycle System for Diesel Engine Based on Particle Swarm Optimization |
| title_full | Parametric Optimization of Regenerative Organic Rankine Cycle System for Diesel Engine Based on Particle Swarm Optimization |
| title_fullStr | Parametric Optimization of Regenerative Organic Rankine Cycle System for Diesel Engine Based on Particle Swarm Optimization |
| title_full_unstemmed | Parametric Optimization of Regenerative Organic Rankine Cycle System for Diesel Engine Based on Particle Swarm Optimization |
| title_short | Parametric Optimization of Regenerative Organic Rankine Cycle System for Diesel Engine Based on Particle Swarm Optimization |
| title_sort | parametric optimization of regenerative organic rankine cycle system for diesel engine based on particle swarm optimization |
| topic | diesel engine waste heat recovery regenerative organic Rankine cycle (RORC) particle swarm optimization (PSO) various operating conditions |
| url | http://www.mdpi.com/1996-1073/8/9/9751 |
| work_keys_str_mv | AT hongjinwang parametricoptimizationofregenerativeorganicrankinecyclesystemfordieselenginebasedonparticleswarmoptimization AT hongguangzhang parametricoptimizationofregenerativeorganicrankinecyclesystemfordieselenginebasedonparticleswarmoptimization AT fubinyang parametricoptimizationofregenerativeorganicrankinecyclesystemfordieselenginebasedonparticleswarmoptimization AT songsongsong parametricoptimizationofregenerativeorganicrankinecyclesystemfordieselenginebasedonparticleswarmoptimization AT yingchang parametricoptimizationofregenerativeorganicrankinecyclesystemfordieselenginebasedonparticleswarmoptimization AT chenbei parametricoptimizationofregenerativeorganicrankinecyclesystemfordieselenginebasedonparticleswarmoptimization AT kaiyang parametricoptimizationofregenerativeorganicrankinecyclesystemfordieselenginebasedonparticleswarmoptimization |