Liang, Y., Mckeown, A., Yu, Z. and Alshammari, S. F. K. (2021) Experimental study on a heat driven refrigeration system based on combined organic Rankine and vapour compression cycles. Energy Conversion and Management, 234, 113953. (doi: 10.1016/j.enconman.2021.113953)
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Abstract
Waste heat recovery has been considered as an attractive technique to improve the overall energy utilization efficiency of internal combustion (IC) engines. In this paper, as distinct from most past research work, a thermally driven refrigeration system based on combined organic Rankine and vapour compression cycles is proposed to recover the IC engines’ waste heat contained in the cooling water. Based on the proposed concept, a lab-scale prototype has been designed and constructed using off-the-shelf components to prove the feasibility of producing refrigeration for ships and refrigerated lorries. In this prototype, the power generated by the Organic Rankine cycle (ORC) is used to drive the compressor of a Vapour Compression Cycle (VCC) through a belt transmission mechanism. Pentafluoropropane (R245fa) and Tetrafluoroethane (R134a) are used as the working fluids for ORC and VCC systems, respectively. An electrical water heater is used to simulate the cooling jacket, while a cooling enclosure is used to simulate the cooling load. With the hot water at a temperature around 95 °C, the system produces around 1.8 kW refrigeration effect at −4 °C, leading to an overall heat-to-cooling efficiency of 0.18, which is defined as the ratio of the cooling capacity of the refrigerator to the heat input to the ORC power plant. The system performance could be significantly improved if optimal components could be utilized.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Liang, Dr Youcai and Alshammari, Saif Fraih K and McKeown, Mr Andrew and Yu, Professor Zhibin |
| Creator Roles: | Liang, Y.Methodology, Software, Investigation Mckeown, A.Investigation Yu, Z.Conceptualization, Supervision Alshammari, S. F. K.Investigation |
| Authors: | Liang, Y., Mckeown, A., Yu, Z., and Alshammari, S. F. K. |
| College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Energy Conversion and Management |
| Publisher: | Elsevier |
| ISSN: | 0196-8904 |
| ISSN (Online): | 1879-2227 |
| Published Online: | 05 March 2021 |
| Copyright Holders: | Copyright © 2021 Elsevier Ltd. |
| First Published: | First published in Energy Conversion and Management 234: 113953 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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