Radiance as a tool for investigating solar penetration in complex buildings

Abstract

There are a number of tools currently used by architects for the investigation of solar penetration into buildings. However, complex building forms present unique analysis difficulties. Current three-dimensional computer-aided design software can display sun patches and shadow on the exterior of buildings; however, it is difficult to obtain accurate and timely information about sun patches internal to the building. This article details a methodology to enhance the capability of commonly used CAD software to show indoor sun patches in complex buildings. The article demonstrates how multiple software packages, including the Radiance Lighting Simulation Suite, can be used as part of a tool chain to display solar penetration in complex buildings in a timely manner.