{Use of rotary kilns for solar thermal applications: Review of developed studies and analysis of their potential}

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Title	{Use of rotary kilns for solar thermal applications: Review of developed studies and analysis of their potential}
Publication Type	Journal Article
Year of Publication	2017
Authors	Alonso E., Gallo A., Roldán M.I., Pérez-Rábago C.A., Fuentealba E.
Journal	Solar Energy
Volume	144
Pagination	90–104
Date Published	mar
ISSN	0038092X
Abstract	Rotary kilns have a long history of use in classical industries. They are able to achieve high temperatures with higher thermal efficiencies than other reactor types. Their performance has been widely studied and classified according to different parameters. Since it is a well-known technology, rotary kilns have been selected for high temperature solar processes. This article initially presents a brief review of the rotary kiln technology and it focuses on the employment of these devices for thermal and thermochemical processes conducted by concentrating solar energy. Among the solar devices, a novel rotary kiln prototype for thermochemical processes is presented and compared with a static solar reactor. Finally, some practical conclusions on the design and operation of solar rotary kilns are remarked and an analysis of their main limitations is presented.
URL	http://linkinghub.elsevier.com/retrieve/pii/S0038092X17300130
DOI	10.1016/j.solener.2017.01.004