Thermal effects of the extended holographic regions for holographic planar concentrator

A model for the thermal properties of holographic planar concentrators on module performance is presented and verified with experimental data. The holographic planar concentrator modules consist of ribbons of volume holograms placed next to photovoltaic cells to achieve a low level concentration effect. The holographic ribbons increase the surface area required to produce a fixed amount of output power but reduce the cost of the module by eliminating approximately half of the photovoltaic cell material, in this case monocrystalline bifacial silicon cells. Due to the low concentration, the temperature reduction effect of the added surface area overcomes the added heat provided by the holograms. The theoretical point at which the added concentration by holograms overcomes the cooling effect provided by the extended region for varying theoretical holographic contributions is also presented.

[1]  E. Skoplaki,et al.  A simple correlation for the operating temperature of photovoltaic modules of arbitrary mounting , 2008 .

[2]  Gilles Notton,et al.  Modelling of a double-glass photovoltaic module using finite differences , 2005 .

[3]  J. Albers,et al.  An exact recursion relation solution for the steady-state surface temperature of a general multilayer structure , 1995 .

[4]  A. Luque,et al.  Handbook of Photovoltaic Science and Engineering: Luque/Photovoltaic Science and Engineering , 2005 .

[6]  A. G. Kokkas.  Thermal analysis of multiple-layer structures , 1974 .

[7]  Deming Zhang,et al.  Low holographic concentration effects on CIGS , 2010, Optics + Photonics for Sustainable Energy.

[8]  Adel A. Hegazy,et al.  Comparative study of the performances of four photovoltaic/thermal solar air collectors. , 2000 .

[9]  E. Skoplaki,et al.  Operating temperature of photovoltaic modules: A survey of pertinent correlations , 2009 .

[10]  Glenn Rosenberg,et al.  Analysis and design of holographic solar concentrators , 2008, Optics + Photonics for Sustainable Energy.

[11]  Jose E. Castillo,et al.  Spectral-shifting and holographic planar concentrators for use with photovoltaic solar cells , 2007, SPIE Optics + Photonics for Sustainable Energy.

[12]  Ya‐Ping Sun,et al.  Thermal conductivity of ethylene vinyl acetate copolymer/nanofiller blends , 2008 .

[13]  D. H. Chien,et al.  Temperature solution o f five-layer structure with an embedded circular source , 1992, [1992 Proceedings] Intersociety Conference on Thermal Phenomena in Electronic Systems.

[14]  Jose M. Castro,et al.  Energy collection efficiency of low concentration holographic planar concentrators , 2010, Optics + Photonics for Sustainable Energy.

[15]  J. Z. Liu,et al.  Thermally conductive and electrically insulating EVA composite encapsulants for solar photovoltaic (PV) cell , 2008 .

[16]  James W. Stultz.  Thermal and other tests of photovoltaic modules performed in natural sunlight , 1979 .