Thermodynamic Modeling of the Multiple Parabolic Reflector Flat Panel Collector

Abstract

The Multiple Parabolic Reflector Flat Plate Collector (MPFC) is designed to concentrate solar energy while remaining stationary. Inside the panel is an array of parabolic trough reflectors with tubular receivers. The receiver array transverses within the panel to collect reflected light from the reflectors. The goal of the design is to provide heat at 150oC for a lower cost than current types of solar thermal panels. A first-law thermal analysis is used to determine the heat gain and heat loss of the system. For Tallahassee locations, the system is oriented such that the reflectors are aligned length-wise in an East-West direction. It is determined that the MPFC can collect energy, at 150oC, with efficiencies comparable to those of advanced flat plate, evacuated tube, and CPC collectors. The simplicity of the design allows for lower manufacturing costs than those of comparable panels, leading to more affordable solar energy collection.