Dry cooling with night cool storage to enhance solar power plants performance in extreme conditions areas

Muñoz Antón, Javier and Martínez-Val Peñalosa, José María and Abbas Cámara, Rubén and Abánades Velasco, Alberto (2012). Dry cooling with night cool storage to enhance solar power plants performance in extreme conditions areas. "Applied Energy", v. 92 ; pp. 426-436. ISSN 0306-2619. https://doi.org/10.1016/j.apenergy.2011.11.030.

Description

Title: Dry cooling with night cool storage to enhance solar power plants performance in extreme conditions areas
Author/s:
  • Muñoz Antón, Javier
  • Martínez-Val Peñalosa, José María
  • Abbas Cámara, Rubén
  • Abánades Velasco, Alberto
Item Type: Article
Título de Revista/Publicación: Applied Energy
Date: April 2012
Volume: 92
Subjects:
Freetext Keywords: Storage; Solar; Chiller; Rankine
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética y Fluidomecánica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Solar thermal power plants are usually installed in locations with high yearly average solar radiation, often deserts. In such conditions, cooling water required for thermodynamic cycles is rarely available. Moreover, when solar radiation is high, ambient temperature is very high as well; this leads to excessive condensation temperature, especially when air-condensers are used, and decreases the plant efficiency. However, temperature variation in deserts is often very high, which drives to relatively low temperatures during the night. This fact can be exploited with the use of a closed cooling system, so that the coolant (water) is chilled during the night and store. Chilled water is then used during peak temperature hours to cool the condenser (dry cooling), thus enhancing power output and efficiency. The present work analyzes the performance improvement achieved by night thermal cool storage, compared to its equivalent air cooled power plant. Dry cooling is proved to be energy-effective for moderately high day–night temperature differences (20 °C), often found in desert locations. The storage volume requirement for different power plant efficiencies has also been studied, resulting on an asymptotic tendency.

More information

Item ID: 22289
DC Identifier: http://oa.upm.es/22289/
OAI Identifier: oai:oa.upm.es:22289
DOI: 10.1016/j.apenergy.2011.11.030
Official URL: http://www.sciencedirect.com/science/article/pii/S0306261911007276
Deposited by: Memoria Investigacion
Deposited on: 09 Feb 2014 09:48
Last Modified: 18 Aug 2017 11:06
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