干旱区生态环境知识资源中心(Arid): Analysis of a hybrid dry cooling system for solar thermal electricity plants in deserts

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DOI	10.1016/j.applthermaleng.2020.116487
	Analysis of a hybrid dry cooling system for solar thermal electricity plants in deserts
	Biencinto, Mario; Rojas, Esther; Bayon, Rocio
通讯作者	Biencinto, M (corresponding author), Plataforma Solar Almeria PSA CIEMAT, Av Complutense 40, Madrid 28040, Spain.
来源期刊	APPLIED THERMAL ENGINEERING
ISSN	1359-4311
EISSN	1873-5606
出版年	2021
卷号	186
英文摘要	This work analyses a new concept of hybrid dry cooling system composed of a latent heat storage module and an air-cooled condenser intended for solar thermal electricity plants located in desert locations with low water availability. This hybrid system is expected not only to improve the power block efficiency but also to reduce parasitic consumptions of air-cooled condensers, taking advantage of the temperature oscillations in such locations. For evaluating those advantages, a simulation model of a solar thermal plant that includes either conventional dry or hybrid cooling system has been developed with TRNSYS, so that both approaches can be compared. The annual behaviour of the corresponding plants in terms of electricity production has been simulated for various desert locations, different cooling system configurations and two phase change materials (PCM) for the latent module: RT35HC and Paraffin C21, with melting temperatures of 35 degrees C and 40 degrees C, respectively. Also, suitable operation strategies have been evaluated in order to optimize the performance of the hybrid cooling concept. Simulation results show that an increase in net electricity from 0.3% to 0.6% for Paraffin C21 or from 0.1% to 0.5% for RT35HC could be obtained per year if a hybrid cooling system is used. The use of a PCM with higher melting points such as Paraffin C21 seems to provide better results in terms of net annual production, particularly in locations with high ambient temperatures at night (like Abu Dhabi or Aswan). Although issues like electricity prices, financial and equipment costs should also be considered, a preliminary economic analysis shows that the cost-to-latent heat ratio of the PCM should be below 4.5 . 10(-3) epsilon/kJ to enable the feasibility of the proposed concept.
英文关键词	Hybrid dry cooling Latent heat storage Solar thermal electricity Phase change material Air-cooled condenser Simulation model
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000635517100029
WOS类目	Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349515
作者单位	[Biencinto, Mario; Rojas, Esther; Bayon, Rocio] Plataforma Solar Almeria PSA CIEMAT, Av Complutense 40, Madrid 28040, Spain
推荐引用方式 GB/T 7714	Biencinto, Mario,Rojas, Esther,Bayon, Rocio. Analysis of a hybrid dry cooling system for solar thermal electricity plants in deserts[J],2021,186.
APA	Biencinto, Mario,Rojas, Esther,&Bayon, Rocio.(2021).Analysis of a hybrid dry cooling system for solar thermal electricity plants in deserts.APPLIED THERMAL ENGINEERING,186.
MLA	Biencinto, Mario,et al."Analysis of a hybrid dry cooling system for solar thermal electricity plants in deserts".APPLIED THERMAL ENGINEERING 186(2021).