Dr Jing Li Jing.Li@hull.ac.uk
Senior Research Fellow
Modelling of organic Rankine cycle efficiency with respect to the equivalent hot side temperature
Li, Jing; Alvi, Jahan Zeb; Pei, Gang; Su, Yuehong; Li, Pengcheng; Gao, Guangtao; Ji, Jie
Authors
Jahan Zeb Alvi
Gang Pei
Yuehong Su
Pengcheng Li
Guangtao Gao
Jie Ji
Abstract
© 2016 Elsevier Ltd An indicator, namely equivalent hot side temperature (TEHST) is proposed for the organic Rankine cycle (ORC). TEHST is derived from ideal thermodynamic process, but can denote the efficiency of irreversible ORC. Study on 27 fluids shows that given the operating conditions, fluid of higher TEHST generally offers higher ORC efficiency. This relationship is stronger and more universal than those established with respect to the critical temperature, boiling point temperature, Jacobs number and Figure of Merit. An ORC model by the method of error transfer and compensation is further built, in which the efficiency is quantitatively correlated with TEHST. Unlike the conventional ORC efficiency model, this one consists of thermodynamic parameters on the liquid/vapor curve and is independent on fluid properties at superheated state, and hence is more convenient. It has high accuracy especially for basic ORC and the relative deviation of the estimated efficiency from that calculated by the conventional model is from −0.7% to 3.4%. The novel model is applied for the thermodynamic performance prediction of a recently developed fluid of HFO1336mzzZ based on the phase equilibrium data. The results indicate HFO1336mzzZ is more efficient than R245fa on the conditions of high evaporation temperature and low pump efficiency.
Citation
Li, J., Alvi, J. Z., Pei, G., Su, Y., Li, P., Gao, G., & Ji, J. (2016). Modelling of organic Rankine cycle efficiency with respect to the equivalent hot side temperature. Energy, 115, 668-683. https://doi.org/10.1016/j.energy.2016.09.049
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 6, 2016 |
Online Publication Date | Sep 16, 2016 |
Publication Date | Nov 15, 2016 |
Deposit Date | Mar 24, 2022 |
Publicly Available Date | May 16, 2022 |
Journal | Energy |
Print ISSN | 0360-5442 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 115 |
Pages | 668-683 |
DOI | https://doi.org/10.1016/j.energy.2016.09.049 |
Keywords | Organic Rankine cycle; Equivalent hot side temperature; Efficiency indicator; Liquid-vapor equilibrium; Error |
Public URL | https://hull-repository.worktribe.com/output/3602658 |
Files
Accepted manuscript
(2 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by-nc-nd/4.0/
Copyright Statement
© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license: http://creativecommons.org/licenses/by-nc-nd/4.0/
You might also like
Downloadable Citations
About Repository@Hull
Administrator e-mail: repository@hull.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search