Conference Paper

Proceedings of ASim Conference 2016: 3rd Asia conference of IBPSA-China, Japan, Korea

Design optimization of building fixed shading using an integrated tool of EnergyPlus and Dakota

Zhichao Tian, Wenqiang Chen, Xing Shi, Xin Zhou

Abstract: Building fixed shading design requires many aspects to be considered simultaneously, i.e. illumination comfort, heat gain, daylighting, natural ventilation. This difficult process involves adjusting the size, number, reflectance, angle and position of the fixed shading to explore the variables area and find the optimal design. The following study proposes an integrated tool of EnergyPlus and Dakota, a generic optimization engine, which are embedded into Legacy OpenStudio. The illumination comfort, heat gain and daylighting are calculated by EnergyPlus without consideration of the ventilation performance. Furthermore, a multi-objective of solar heat gain and useful daylight illuminance optimization design process is applied to a one zone room to optimize the south window's fixed shading. The results show that the integrated tool can help designers explore the design options and have a quick and easy fulfillment of their objectives in the early design stage.
Keywords: fixed shading design, optimization, building energy efficiency, daylighting
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