Thermodynamic investigation of solar energy conversion in to work

Abstract

Using a simple thermodynamic upper bound efficiency model for the conversion of solar energy into work, the best material for a converter was obtained. Modifying the existing detailed terrestrial application model of direct solar radiation to include an atmospheric transmission coefficient with cloud factors and a maximum concentration ratio, the best shape for a solar concentrator was derived. Using a Carnot engine in detailed space application model, the best shape for the mirror of a concentrator was obtained. A new conversion model was introduced for a solar chimney power plant to obtain the efficiency of the power plant and power output. DOI: http://dx.doi.org/10.4038/sljp.v9i0.2510 Sri Lanka Journal of Physics Vol.9 (2008) pp.47-60