E3S Web Conf.
Volume 238, 2021100RES 2020 – Applied Energy Symposium (ICAE), 100% RENEWABLE: Strategies, Technologies and Challenges for a Fossil Free Future
|Number of page(s)||4|
|Published online||16 February 2021|
Solar Hot Air for Industrial Applications Using Linear Fresnel Concentrating Collectors and Open Brayton Cycle Layout
Universidad Carlos III de Madrid, Departamento de Ingenieria Termica y de Fluidos, Avda. de la Universidad 30, 28911 Leganes, Madrid, Spain
2 Universidad de Castilla La Mancha, Campus de Excelencia Internacional en Energia y Medioambiente, Escuela de Ingenieria Industrial y Aeroespacial, Av. Carlos III, s/n, Toledo 45071, Spain
* Corresponding author: firstname.lastname@example.org
Many industrial processes use hot air as a medium. This is especially relevant for drying. Nowadays, most of them consume fossil energy. This study analyses an innovative facility for direct solar heating of air up to 400 °C. For this aim, a medium-scale solar field of linear Fresnel collectors is proposed to heat ambient air inside it. No other dedicated heat transfer fluid is necessary. A simpler layout avoids costs, hurdles, and risks of heat transfer liquids and the related machinery. A Brayton cycle configuration avoids auxiliary energy consumption for pumping air through the collectors by coupling the solar field with a turbocharger. A mathematical model simulates a system of industrial size along a typical meteorological year. It confirms the feasibility of the proposal and the high potential of helping the energy transition to sustainability.
© The Authors, published by EDP Sciences, 2021
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