Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander
An experimental investigation is performed for an organic Rankine cycle system with different electrical resistive loads. The test rig is set up with a small scroll expander-generator unit, a boiler and a magnetically coupled pump. R134a is used as the working fluid in the system. The experimental r...
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| Format: | Article |
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/32050/ |
| _version_ | 1848794325908979712 |
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| author | Zhua, Jie Chen, Ziwei Huang, Hulin Yan, Yuying |
| author_facet | Zhua, Jie Chen, Ziwei Huang, Hulin Yan, Yuying |
| author_sort | Zhua, Jie |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | An experimental investigation is performed for an organic Rankine cycle system with different electrical resistive loads. The test rig is set up with a small scroll expander-generator unit, a boiler and a magnetically coupled pump. R134a is used as the working fluid in the system. The experimental results reveal that the resistive load coupled to the scroll expander-generator unit affects the expander performance and power output characteristics. It is found that an optimum pressure ratio exists for the maximum power output. The optimal pressure ratio of the expander decreases markedly as the resistive load gets higher. The optimum pressure ratio of the scroll expander is 3.6 at a rotation speed of 3450 r/min for a resistive load of 18.6 Ω. The maximum electrical power output is 564.5 W and corresponding isentropic and volumetric efficiencies are 78% and 83% respectively. |
| first_indexed | 2025-11-14T19:14:24Z |
| format | Article |
| id | nottingham-32050 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:14:24Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-320502020-05-04T17:32:00Z https://eprints.nottingham.ac.uk/32050/ Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander Zhua, Jie Chen, Ziwei Huang, Hulin Yan, Yuying An experimental investigation is performed for an organic Rankine cycle system with different electrical resistive loads. The test rig is set up with a small scroll expander-generator unit, a boiler and a magnetically coupled pump. R134a is used as the working fluid in the system. The experimental results reveal that the resistive load coupled to the scroll expander-generator unit affects the expander performance and power output characteristics. It is found that an optimum pressure ratio exists for the maximum power output. The optimal pressure ratio of the expander decreases markedly as the resistive load gets higher. The optimum pressure ratio of the scroll expander is 3.6 at a rotation speed of 3450 r/min for a resistive load of 18.6 Ω. The maximum electrical power output is 564.5 W and corresponding isentropic and volumetric efficiencies are 78% and 83% respectively. Elsevier 2016-01-15 Article PeerReviewed Zhua, Jie, Chen, Ziwei, Huang, Hulin and Yan, Yuying (2016) Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander. Energy, 95 . pp. 21-28. ISSN 1873-6785 Resistive load; Organic Rankine cycle; Scroll expander; Optimal pressure ratio; Electrical power output http://www.sciencedirect.com/science/article/pii/S0360544215015984 doi:10.1016/j.energy.2015.11.048 doi:10.1016/j.energy.2015.11.048 |
| spellingShingle | Resistive load; Organic Rankine cycle; Scroll expander; Optimal pressure ratio; Electrical power output Zhua, Jie Chen, Ziwei Huang, Hulin Yan, Yuying Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander |
| title | Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander |
| title_full | Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander |
| title_fullStr | Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander |
| title_full_unstemmed | Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander |
| title_short | Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander |
| title_sort | effect of resistive load on the performance of an organic rankine cycle with a scroll expander |
| topic | Resistive load; Organic Rankine cycle; Scroll expander; Optimal pressure ratio; Electrical power output |
| url | https://eprints.nottingham.ac.uk/32050/ https://eprints.nottingham.ac.uk/32050/ https://eprints.nottingham.ac.uk/32050/ |