Thermal energy storage for direct steam generation

被引：203

作者：

Laing, Doerte ^{[1
]}

Bahl, Carsten ^{[2
]}

Bauer, Thomas ^{[1
]}

Lehmann, Dorothea ^{[1
]}

Steinmann, Wolf-Dieter ^{[1
]}

机构：

[1] German Aerosp Ctr DLR, Inst Tech Thermodynam, D-70569 Stuttgart, Germany

[2] Ed Zublin AG, Stuttgart, Germany

来源：

SOLAR ENERGY | 2011年 / 85卷 / 04期

关键词：

Thermal energy storage; Direct steam generation; Latent heat storage; Phase change material; Concrete; Parabolic trough power plant;

D O I：

10.1016/j.solener.2010.08.015

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Parabolic trough power plants with direct steam generation are a promising option for future cost reduction in comparison to the SEGS type technology. These new solar thermal power plants require innovative storage concepts, where the two-phase heat transfer fluid poses a major challenge. A three-part storage system is proposed where a phase change material (PCM) storage will be deployed for the two-phase evaporation, while concrete storage will be used for storing sensible heat, i.e. for preheating of water and superheating of steam. A storage system with a total storage capacity of approx. 1 MW h is described, combining a PCM module and a concrete module. The storage modules have been constructed for testing in a DSG-test facility specially erected at a conventional power plant of Endesa in Carboneras (Spain). Commissioning of the storage system started in May 2010; testing under real steam conditions around 100 bar will begin in August 2010. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：627 / 633

页数：7

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