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Partial shading effects of surrounding obstacle parameters on building integrated photovoltaic (BIPV) system efficiency in Thailand
Author(s)
Somboonwit, Nuttasit
Date Issued
January 1, 2018
Type
Conference Paper
Abstract
This study aims to explore the comparative effects between Obstacle’s Distance and Obstacle’s Orientation parameters that cause partial shading effect (PSE) and influence the potential solar power generation of a building integrated photovoltaic (BIPV) system. An automatic collaboration between Building Information Modelling (BIM) software and a cloud-based building performance analysis tool were used to simulate the annual cumulative insolation obtained from rooftop BIPV surfaces of sixteen different Obstacle’s Orientations and forty-three different distances between the BIPV and building obstacles—Obstacle’s Distance. The case study are two axis-aligned public healthcare buildings; an outpatient department (OPD) building and a ward building that are widely established throughout Thailand. This study also explores the notion that Obstacle’s Orientation and Obstacle’s Distance of a surrounding obstacle are both important parameters that influence the annual cumulative insolation of PV surfaces but in the different contexts. The findings of this study also support decision making for BIPV designers and planners to select which the BIPV and the obstacle placement is highly effective, especially BIPV application on lower-rise buildings in dense urban environments, such as healthcare facilities.
Citation
PLEA 2018 Smart and Healthy within the Two Degree Limit Proceedings of the 34th International Conference on Passive and Low Energy Architecture, 2, 613-619, 2018