The implementation of diffuse radiation shading computation in ESP-r

Clarke, Joseph Andrew (2012) The implementation of diffuse radiation shading computation in ESP-r. In: eSim 2012 Building Simulation Conference, 2012-05-01 - 2012-05-04.

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Abstract

Approaches to the modelling of irradiance and illuminance distribution within the ESP-r system, based on direct computation and co-operating programs respectively, are summarised. A recent extension to the projection-based, solar shading algorithm of the former approach – addressing diffuse beam shading quantification under realistic sky conditions – is described. The paper concludes with results from an example application of the extended algorithm to investigate the impact of diffuse shading on photovoltaic component power output.