Pengaruh Secondary  Skin Dengan Variasi Kemiringan  Sudut Fasad Terhadap Efisiensi Energi Dan Kenyamanan Termal Ruangan

Irwan Rinaldi; Dendi Adi Saputra; Melda Rozi

doi:10.30630/jtm.18.1.1865

Irwan Rinaldi Teknik Mesin, Teknik, Universitas Andalas
Dendi Adi Saputra Teknik Mesin, Teknik, Universitas Andalas
Melda Rozi Teknik Mesin, Teknik, Universitas Andalas

DOI: https://doi.org/10.30630/jtm.18.1.1865

Keywords: passive cooling, facade angle, energy efficiency, thermal comfort

Abstract

This study examines the effect of applying secondary skin with varying slope angles on the facade on energy efficiency and indoor thermal comfort. Facades with varying slope angles are designed to respond adaptively to external environmental conditions, such as solar radiation intensity, air temperature, and wind movement, with the aim of minimizing the building's thermal load and improving overall thermal performance. An experimental approach is used to evaluate the effectiveness of secondary skin with varying slopes. The thermal comfort parameters measured include air temperature, relative humidity, lighting intensity, and energy requirements for cooling, all of which are analyzed based on ASHRAE standards. The results of the study indicate that the use of facades with opening slopes of 10°, 20°, and 30° can reduce the room cooling load by 11.05%, 10.95%, and 10.80%, respectively. In addition, there was a decrease in the average Predicted Mean Vote (PMV) value of 0.059 (5.03%) at a slope of 10°, 0.073 (6.29%) at a slope of 20°, and 0.078 (7.20%) at a slope of 30°. These findings indicate that secondary skin with variations in the slope angle of the facade is an innovative and sustainable approach in passive cooling strategies, which contributes to reducing energy consumption.

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