干旱区生态环境知识资源中心(Arid): Thermal-hydraulic performance analysis of a novel parabolic trough receiver with double tube for solar cascade heat collection

Arid

DOI	10.1016/j.energy.2020.119566
	Thermal-hydraulic performance analysis of a novel parabolic trough receiver with double tube for solar cascade heat collection
	Liu, Peng; Dong, Zhimin; Xiao, Hui; Liu, Zhichun; Liu, Wei
通讯作者	Liu, W (corresponding author), Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Peoples R China.
来源期刊	ENERGY
ISSN	0360-5442
EISSN	1873-6785
出版年	2021
卷号	219
英文摘要	The utilization of solar energy is of great significance to alleviate energy shortage and environmental problems. In view of the different thermal grade requirements of electricity production and water desalination in remote arid areas as well as to improve the performance of the parabolic trough receiver (PTR), a novel solar cascade heat collection system based on a PTR with double tube and two heat transfer fluids (HTF) is proposed in this paper. A three-dimensional model is developed to simulate and investigate the temperature distribution, heat transfer and flow characteristics and heat collecting performance of the novel system. Moreover, the effects of the operating parameters on the performance are studied in details. The temperatures of the absorber tube are significantly reduced over the plain PTR, and the heat transfer coefficient on the absorber inner surface is enhanced about 50% with 2.5-6.8 times increment in total pumping work. In addition, the heat loss reduced up to 43.1%, thus, the maximum improvement of the total thermal efficiency reaches up to 1.5%. Within the parameters considered in this study, the proportions of the high and low temperature heat gains are ranged in 39.01-62.92% and 28.37-8.86% of the incident solar energy, respectively. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Solar cascade heat collection Parabolic trough receiver Double tube Heat collecting performance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000611859400010
WOS关键词	ENTROPY GENERATION ANALYSIS ; THERMODYNAMIC OPTIMIZATION ; TRANSFER ENHANCEMENT ; MOLTEN-SALT ; EFFICIENCY ; PROGRESS ; ENERGY ; FLUX
WOS类目	Thermodynamics ; Energy & Fuels
WOS研究方向	Thermodynamics ; Energy & Fuels
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347837
作者单位	[Liu, Peng; Dong, Zhimin; Xiao, Hui; Liu, Zhichun; Liu, Wei] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Liu, Peng,Dong, Zhimin,Xiao, Hui,et al. Thermal-hydraulic performance analysis of a novel parabolic trough receiver with double tube for solar cascade heat collection[J],2021,219.
APA	Liu, Peng,Dong, Zhimin,Xiao, Hui,Liu, Zhichun,&Liu, Wei.(2021).Thermal-hydraulic performance analysis of a novel parabolic trough receiver with double tube for solar cascade heat collection.ENERGY,219.
MLA	Liu, Peng,et al."Thermal-hydraulic performance analysis of a novel parabolic trough receiver with double tube for solar cascade heat collection".ENERGY 219(2021).