Linear Fresnel solar collector prototype: Artisanal system for the production of hot water and/or water vapour

Abstract

The development of a linear Fresnel solar collector prototype is discussed, highlighting the use of direct solar heat radiation for water heating and/or steam production as an alternative to conventional water-heating systems or steam generators, which consume energy from fossil fuels. A solar system was prototyped at the Unidades Tecnol´ogicas de Santander in Bucaramanga, Colombia. We produced mathematical models of sizing, technical specifications and material availability, and assembled and field-tested an ambient collector for model efficiency. The model presented does not have a control system for flow, temperature, pressure or level, and it has no solar tracking of any kind. Its movement was manually managed at each reflex. Finally, the model has neither a hydraulic system nor a preheater at the entry of the concentration point.