Skip to main content

Research Repository

Advanced Search

Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander

Zhua, Jie; Chen, Ziwei; Huang, Hulin; Yan, Yuying

Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander Thumbnail


Authors

Jie Zhua

ZIWEI CHEN ZIWEI.CHEN@NOTTINGHAM.AC.UK
Senior Research Fellow

Hulin Huang

YUYING YAN YUYING.YAN@NOTTINGHAM.AC.UK
Professor of Thermofluids Engineering



Abstract

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.

Citation

Zhua, J., Chen, Z., Huang, H., & Yan, Y. (2016). Effect of resistive load on the performance of an organic Rankine cycle with a scroll expander. Energy, 95, https://doi.org/10.1016/j.energy.2015.11.048

Journal Article Type Article
Publication Date Jan 15, 2016
Deposit Date Mar 2, 2016
Publicly Available Date Mar 2, 2016
Journal Energy
Print ISSN 0360-5442
Electronic ISSN 1873-6785
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 95
DOI https://doi.org/10.1016/j.energy.2015.11.048
Keywords Resistive load; Organic Rankine cycle; Scroll expander; Optimal pressure ratio; Electrical power output
Public URL https://nottingham-repository.worktribe.com/output/772689
Publisher URL http://www.sciencedirect.com/science/article/pii/S0360544215015984

Files





You might also like



Downloadable Citations