 Experimental study of a parabolic trough solar collector with flat bar-and-plate absorber during direct steam generationMatteo Bortolato, Simone Dugaria and Davide Del Col Energy, 2016, vol. 116, issue P1, 1039-1050 Abstract: The present work aims at investigating an innovative flat aluminum absorber for process heat and direct steam generation in small linear solar concentrating collectors. After defining its optimal width through a Monte Carlo ray-tracing analysis, this absorber has been manufactured with the bar-and-plate technology, including an internal offset strip turbulator in the channel. This technology is cost-effective and extremely flexible, allowing to easily adapt the geometry of the absorber to different reflecting optics configurations. It has been mounted on an asymmetrical parabolic trough concentrator to form a solar collector with a concentration ratio of 42, which has been experimentally investigated. In particular, a new test procedure is presented, applied and validated to characterize the thermal performance of the collector during steam generation. The results show that a promising overall thermal efficiency of 64% at 0.160 K m2 W−1 can be achieved with negligible pressure drop. Keywords: Solar energy; Solar process heat; Parabolic trough collectors; Enhanced receiver; Experimental tests; Direct steam generation (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:116:y:2016:i:p1:p:1039-1050 DOI: 10.1016/j.energy.2016.10.021 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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