Heat Transfer Modelling and Performance Analysis of Trough Solar Thermal Power Collector Based on Al2O3 Nanofluid

doi:10.12096/j.2096-4528.pgt.19109

Power Generation Technology ›› 2021, Vol. 42 ›› Issue (2): 230-237.DOI: 10.12096/j.2096-4528.pgt.19109

• New and Renewable Energy • Previous Articles Next Articles

Heat Transfer Modelling and Performance Analysis of Trough Solar Thermal Power Collector Based on Al₂O₃ Nanofluid

Yaodong LIU¹(), Yanping ZHANG¹^,²^,*(), Liang WAN², Wei GAO¹

¹ School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, China
² China-EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, China

Received:2020-04-18 Published:2021-04-30 Online:2021-04-29
Contact: Yanping ZHANG
Supported by:
National Special Project of International Scientific and Technological Cooperation(2014DFA60990)

Abstract

Abstract:

Based on the finite volume method in computational fluid dynamics, the performance of the trough solar thermal power collector with Al₂O₃/Syltherm800 oil nanofluid as heat transfer fluid was studied. A three-dimension model of the vacuum collector was established, optical simulation and heat transfer numerical simulation were carried out and verified by experiments. Under the condition of non-uniform heat flux distribution, the influence of inlet temperature and inlet velocity on the heat transfer performance of the trough collector with nanofluid was studied. The simulation results show that the heat transfer performance and heat efficiency of the trough collector are improved with the increase of Al₂O₃ volume fraction. The heat transfer performance of the collector is greatly influenced by the inlet temperature and the inlet velocity. With the increase of inlet temperature and the decrease of inlet velocity, the influence of the nanofluid on the heat transfer performance increases gradually.

Key words: solar thermal power generation, trough collector, nanofluid, heat transfer performance

CLC Number:

TK519

Yaodong LIU, Yanping ZHANG, Liang WAN, Wei GAO. Heat Transfer Modelling and Performance Analysis of Trough Solar Thermal Power Collector Based on Al₂O₃ Nanofluid[J]. Power Generation Technology, 2021, 42(2): 230-237.

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Heat Transfer Modelling and Performance Analysis of Trough Solar Thermal Power Collector Based on Al₂O₃ Nanofluid

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