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Air-sand heat exchanger for high-temperature storage / Shashikant Warerkar in Transactions of the ASME. Journal of solar energy engineering, Vol. 133 N° 2 (Mai 2011) 

Public ISBD [article]  in Transactions of the ASME. Journal of solar energy engineering > Vol. 133 N° 2 (Mai 2011) . - 07 p. Titre : Air-sand heat exchanger for high-temperature storage Type de document : texte imprimé Auteurs : Shashikant Warerkar, Auteur ; Stefan Schmitz, Auteur ; Joachim Goettsche, Auteur Année de publication : 2012 Article en page(s) : 07 p. Note générale : Solar energy Langues : Anglais (eng) Mots-clés : Furnaces  Heat  exchangers  High-temperature  techniques  Power  generation  economics  Quartz  Sand  Solar  power  Solar  power  stations  Specific  heat  Steel  industry  Thermal  energy  storage  Thermal  stability Index. décimale : 621.47 Résumé : In view of rising energy prices and an increasing share of power generated by renewable energy sources, the importance of energy storage is growing. In the framework of this project, a thermal energy storage concept for solar power towers is being developed, in which quartz sand serves as a storage medium. Sand is suitable due to its properties such as high thermal stability, specific heat capacity, and low-cost availability. Compared with storages based on ceramic bodies, the use of sand promises to reduce costs of energy storage and thus to reduce the costs of electricity generation. In addition, the storage concept could be applicable in the steel industry. The central element of the storage concept is an air-sand heat exchanger, which is presently under development. This paper describes simulation results and measurements of the heat exchanger prototype. It includes sand flow behavior and experience with different porous walls as well as up-scaling options. DEWEY : 621.47 ISSN : 0199-6231 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO000133000002 [...] [article] Air-sand heat exchanger for high-temperature storage [texte imprimé] / Shashikant Warerkar, Auteur ; Stefan Schmitz, Auteur ; Joachim Goettsche, Auteur . - 2012 . - 07 p. Solar energy Langues : Anglais (eng) in Transactions of the ASME. Journal of solar energy engineering > Vol. 133 N° 2 (Mai 2011) . - 07 p. Mots-clés : Furnaces  Heat  exchangers  High-temperature  techniques  Power  generation  economics  Quartz  Sand  Solar  power  Solar  power  stations  Specific  heat  Steel  industry  Thermal  energy  storage  Thermal  stability Index. décimale : 621.47 Résumé : In view of rising energy prices and an increasing share of power generated by renewable energy sources, the importance of energy storage is growing. In the framework of this project, a thermal energy storage concept for solar power towers is being developed, in which quartz sand serves as a storage medium. Sand is suitable due to its properties such as high thermal stability, specific heat capacity, and low-cost availability. Compared with storages based on ceramic bodies, the use of sand promises to reduce costs of energy storage and thus to reduce the costs of electricity generation. In addition, the storage concept could be applicable in the steel industry. The central element of the storage concept is an air-sand heat exchanger, which is presently under development. This paper describes simulation results and measurements of the heat exchanger prototype. It includes sand flow behavior and experience with different porous walls as well as up-scaling options. DEWEY : 621.47 ISSN : 0199-6231 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO000133000002 [...]