THERMODYNAMIC MODELLING OF LUMINESCENT SOLAR CONCENTRATORS

摘要

Luminescent solar concentrators have advantages over geometric concentrators in that tracking is unnecessary and both direct and diffuse radiation can be collected. We have developed self-consistent 3D thermodynamic models for planar concentrators, modules and stacks but, evaluating the resulting integral equations is computationally intensive. With a view to developing computationally tractable models for such systems that can be applied to practical sized devices, we have developed an optimal, self-consistent linearisation of the depth dependence of the chemical potential for a single planar concentrator that results in only analytic expressions. This linearised 3D flux model is validated by comparison with the results of our original 3D flux model. The results for test concentrators containing both quantum dots and organic dyes as the luminescent species show excellent agreement with experiment.