Experimental Study on the Organic Rankine Cycle for the Recovery of the Periodic Waste Heat Source
The traditional oil radiator is substituted with the organic Rankine cycle for the recovery of the abundant waste heat in the hydraulic system to improve the overall system efficiency. A prototype of the proposed system is developed to analyze both steady-state and dynamic performance. The effects o...
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MDPI AG
2025-03-01
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| author | Zhengzhao Gu Yan Shi Pu Wu |
| author_facet | Zhengzhao Gu Yan Shi Pu Wu |
| author_sort | Zhengzhao Gu |
| collection | DOAJ |
| description | The traditional oil radiator is substituted with the organic Rankine cycle for the recovery of the abundant waste heat in the hydraulic system to improve the overall system efficiency. A prototype of the proposed system is developed to analyze both steady-state and dynamic performance. The effects of oil flow rate and connected load on system performance are studied under steady-state conditions. When the electrical load increases from 60 W to 320 W, the output power of the generator rises from nearly 42 W to 85 W, with the expander–generator efficiency between 15% and 35%. The dynamic experiment is conducted to analyze the variation characteristics of the system performance under the periodic variations in the oil flow. With the oil flow rate changes in the range of 40~80 L/min, the evaporator experiences an oil pressure drop ranging from 3.6 kPa to 18.6 kPa, while the heat transfer rate varies from approximately 2 kW to 5 kW. The influence of different flow frequencies on pressure drop and heat transfer of heat exchangers is also analyzed. The experimental findings can guide the control of operating parameters and enhance the system’s performance. |
| format | Article |
| id | doaj-art-a00438e48e7340c28e01df8c71e51c4f |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-a00438e48e7340c28e01df8c71e51c4f2025-08-20T02:11:09ZengMDPI AGEnergies1996-10732025-03-01186145810.3390/en18061458Experimental Study on the Organic Rankine Cycle for the Recovery of the Periodic Waste Heat SourceZhengzhao Gu0Yan Shi1Pu Wu2Department of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, ChinaDepartment of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, ChinaDepartment of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, ChinaThe traditional oil radiator is substituted with the organic Rankine cycle for the recovery of the abundant waste heat in the hydraulic system to improve the overall system efficiency. A prototype of the proposed system is developed to analyze both steady-state and dynamic performance. The effects of oil flow rate and connected load on system performance are studied under steady-state conditions. When the electrical load increases from 60 W to 320 W, the output power of the generator rises from nearly 42 W to 85 W, with the expander–generator efficiency between 15% and 35%. The dynamic experiment is conducted to analyze the variation characteristics of the system performance under the periodic variations in the oil flow. With the oil flow rate changes in the range of 40~80 L/min, the evaporator experiences an oil pressure drop ranging from 3.6 kPa to 18.6 kPa, while the heat transfer rate varies from approximately 2 kW to 5 kW. The influence of different flow frequencies on pressure drop and heat transfer of heat exchangers is also analyzed. The experimental findings can guide the control of operating parameters and enhance the system’s performance.https://www.mdpi.com/1996-1073/18/6/1458hydraulic systemorganic Rankine cyclecorrelation analysisperiodic variationdynamic response |
| spellingShingle | Zhengzhao Gu Yan Shi Pu Wu Experimental Study on the Organic Rankine Cycle for the Recovery of the Periodic Waste Heat Source Energies hydraulic system organic Rankine cycle correlation analysis periodic variation dynamic response |
| title | Experimental Study on the Organic Rankine Cycle for the Recovery of the Periodic Waste Heat Source |
| title_full | Experimental Study on the Organic Rankine Cycle for the Recovery of the Periodic Waste Heat Source |
| title_fullStr | Experimental Study on the Organic Rankine Cycle for the Recovery of the Periodic Waste Heat Source |
| title_full_unstemmed | Experimental Study on the Organic Rankine Cycle for the Recovery of the Periodic Waste Heat Source |
| title_short | Experimental Study on the Organic Rankine Cycle for the Recovery of the Periodic Waste Heat Source |
| title_sort | experimental study on the organic rankine cycle for the recovery of the periodic waste heat source |
| topic | hydraulic system organic Rankine cycle correlation analysis periodic variation dynamic response |
| url | https://www.mdpi.com/1996-1073/18/6/1458 |
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