jailcd2019-104： Study of Building Shape Parameter on Energy and Thermal Comfort in Bandung, Indonesia

Abstract

This paper discusses the use of parametric design technology that is applied as a reference for designing the concept of the building shape. The author tries to conduct an experiment about the relationship between building shape, Wall to Window Ratios (WWR), building orientation, energy use, and thermal comfort on the Predicted Mean Vote (PMV) scale. In experiments for this building, using Rhinoceros  software to create building mass  shapes,  Grasshopper to  enter WWR parameters and building orientation, Ladybug and Honeybee Plug-ins for energy simulation and thermal comfort.
Based on the experimental results, buildings with the H shape, WWR 30%, north-south orientation have an energy consumption of 0.76 kWh/m2/yr. Meanwhile, buildings with the L shape, WWR 30%, north-south orientation have an energy consumption of 1.38 kWh/m2/yr. This study shows that although buildings with the same floor area, same WWR percentages, and same orientation, but have a different shape can produce a significant difference in energy use. The studies also give significant correlation with the thermal perception, that is buildings with the H shape offer the PMV as much as +0.66, which is “neutral” perception in the hottest thermal condition.