Economic analysis and life cycle assessment of concrete thermal energy storage for parabolic trough power plants / D. Laing in Transactions of the ASME. Journal of solar energy engineering, Vol. 132 N° 4 (Novembre 2010)  

Public ISBD [article]  inTransactions of the ASME. Journal of solar energy engineering > Vol. 132 N° 4 (Novembre 2010) . - pp. [041013/1-6] Titre : Economic analysis and life cycle assessment of concrete thermal energy storage for parabolic trough power plants Type de document : texte imprimé Auteurs : D. Laing, Auteur ; W. D. Steinmann, Auteur ; P. Viebahn, Auteur Année de publication : 2011 Article en page(s) : pp. [041013/1-6] Note générale : Energie Solaire Langues : Anglais (eng) Mots-clés : Thermal energy storage Solid media Concrete Modular operation concept Life cycle assessment Parabolic trough power plant Index. décimale : 621.47 Résumé : For parabolic trough power plants using synthetic oil as the heat transfer medium, the application of solid media sensible heat storage is an attractive option in terms of investment and maintenance costs. One important aspect in storage development is the storage integration into the power plant. A modular operation concept for thermal storage systems was previously suggested by DLR, showing an increase in storage capacity of more than 100%. However, in these investigations, the additional costs needed to implement this storage concept into the power plant, such as for extra piping, valves, pumps, and control, had not been considered. These aspects are discussed in this paper, showing a decrease in levelized energy costs with a modular storage integration of 2–3%. In a life cycle assessment a comparison of an AndaSol-I type solar thermal power plant with the original two-tank molten salt storage and with a “hypothetical” concrete storage shows an advantage of the concrete storage technology concerning environmental impacts. The environmental impacts of the hypothetical concrete based AndaSol-I decreased by 7%, considering 1 kW h of solar electricity delivered to the grid. Regarding only the production of the power plant, the emissions decreased by 9.5%. DEWEY : 621.47 ISSN : 0199-6231 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO00013200 [...] [article] Economic analysis and life cycle assessment of concrete thermal energy storage for parabolic trough power plants [texte imprimé] / D. Laing, Auteur ; W. D. Steinmann, Auteur ; P. Viebahn, Auteur . - 2011 . - pp. [041013/1-6]. Energie Solaire Langues : Anglais (eng) in Transactions of the ASME. Journal of solar energy engineering > Vol. 132 N° 4 (Novembre 2010) . - pp. [041013/1-6] Mots-clés : Thermal energy storage Solid media Concrete Modular operation concept Life cycle assessment Parabolic trough power plant Index. décimale : 621.47 Résumé : For parabolic trough power plants using synthetic oil as the heat transfer medium, the application of solid media sensible heat storage is an attractive option in terms of investment and maintenance costs. One important aspect in storage development is the storage integration into the power plant. A modular operation concept for thermal storage systems was previously suggested by DLR, showing an increase in storage capacity of more than 100%. However, in these investigations, the additional costs needed to implement this storage concept into the power plant, such as for extra piping, valves, pumps, and control, had not been considered. These aspects are discussed in this paper, showing a decrease in levelized energy costs with a modular storage integration of 2–3%. In a life cycle assessment a comparison of an AndaSol-I type solar thermal power plant with the original two-tank molten salt storage and with a “hypothetical” concrete storage shows an advantage of the concrete storage technology concerning environmental impacts. The environmental impacts of the hypothetical concrete based AndaSol-I decreased by 7%, considering 1 kW h of solar electricity delivered to the grid. Regarding only the production of the power plant, the emissions decreased by 9.5%. DEWEY : 621.47 ISSN : 0199-6231 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO00013200 [...]

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