Conference: Optical and Thermal Assessment of a Linear Fresnel Collector with Minichannel Absorber Tube for Medium Temperature Applications

Published in ISES Solar World Congress 2019, 2019

Recommended citation: Pablo Castillo, Camila Correa-Jullian, Ignacio Calderón, Williams Calderón, and Gerardo Diaz. Optical and Thermal Assessment of a Linear Fresnel Collector with Minichannel Absorber Tube for Medium Temperature Applications. In Proceedings of the ISES Solar World Congress 2019, pages 1–11, Freiburg, Germany, nov 2019. International Solar Energy Society. doi:10.18086/swc.2019.12.01

Abstract

Solar thermal energy has been the fastest-growing renewable heat technology, but most of the world’s solar thermal installed capacity consists of a single house domestic system. Linear Fresnel collectors are considered a cost-effective technology for applications such as heat for industrial process, concentrating solar power, etc. In 2008, Diaz presented a novel mini-channel tube solar collector for low temperatures applications, showing promising results compared to conventional flat plate and evacuated tube collectors. Considering the benefits of using mini-channels, the present work presents a novel design of a LFC by using a mini-channel tube as absorber. The main results show an increase of 2,8% of thermal power output and 21% in optical efficiency compared to commercial LFC, proving that this design could constitute a feasible option to be integrated into solar solutions for medium temperature industrial processes.

Keywords: Linear Fresnel, mini-channel tube, medium temperature, direct steam generation

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Recommended citation: Pablo Castillo, Camila Correa-Jullian, Ignacio Calderón, Williams Calderón, and Gerardo Diaz. Optical and Thermal Assessment of a Linear Fresnel Collector with Minichannel Absorber Tube for Medium Temperature Applications. In Proceedings of the ISES Solar World Congress 2019, pages 1–11, Freiburg, Germany, nov 2019. International Solar Energy Society. doi:10.18086/swc.2019.12.01