Molten salt facilities, lessons learnt at pilot plant scale to guarantee commercial plants; heat losses evaluation and correction

RENEWABLE ENERGY

卷:94

Article

Prieto, Cristina¹  Osuna, Rafael¹  Ines Fernandez, A.²  Cabeza, Luisa F.³ 

[1] Abengoa Res, C Energia Solar 1, Seville 41012, Spain

[2] Univ Barcelona, Dept Mat Sci & Met Engn, Marti & Franques 1-11, E-08028 Barcelona, Spain

[3] Univ Lleida, GREA Innovacio Concurrent, Edifici CREA,Pere Cabrera S-N, Lleida 25001, Spain

关键词: Thermal energy storage (TES);    Molten salt;    Heat losses;    Reengineering;    Lessons learnt;    Concentrated solar power plant (CSP);   

DOI  :  10.1016/j.renene.2016.03.039

来源: Elsevier

【 摘 要 】

This paper presents the importance of the thermal losses in the performance evaluation of thermal storage systems. In order to reinforce this statement, an evaluation of a pilot plant whose size is sufficiently representative for the extrapolation of results at larger scales has been carried out. The evaluation of the heat losses of a molten salt pilot plant with 8.1 MWhth built in Spain by Abengoa is presented. While the storage materials development has attracted a lot of attention from the researchers, the performance of a two-tank storage system has not been evaluated in detail. The relevance of the design of conventional systems such as insulation, mechanical assembly or foundation, are found to be the key for the feasibility of a TES system. Different performance scenarios were performed and based on experimental results, decisions for reengineering of the pilot plant could be taken to improve commercial storage plants. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

Free