OTTV'S Assessment on Thermal Performance of High-Rise Apartment Buildings in Penang

Authors

  • Yasser Arab Architectural Engineering Department, College of Engineering, Dhofar University, Oman
  • Ahmad Sanusi Hassan School of Housing, Building and Planning, Universiti Sains Malaysia, 11800 Gelugor, Penang, Malaysia
  • Zeyad Amin Al-Absi Department of Architecture, Faculty of Engineering, Sana’a University, Sana'a, Yemen
  • Boonsap Witchayangkoon Department of Civil Engineering, Thammasat School of Engineering, Thammasat University, Thailand
  • Bushra Qanaa Faculty of Architecture, Ittihad Private University, Syria

DOI:

https://doi.org/10.37934/arfmts.102.2.2132

Keywords:

High-rise apartment, OTTV, energy efficiency, building envelope, Green Building Index

Abstract

This study evaluates the envelope thermal performance of high-rise apartment buildings in Malaysia, which are being largely dominated due to the high economic development and increased population. The evaluation was conducted using the Overall Thermal Transfer Value (OTTV), which is the key tool used in the Green Building Index to assess the Energy Efficiency of buildings. Different high-rise apartment buildings were selected with different architecture styles, to account for several periods of building construction. The OTTV value was calculated for the west-oriented façade of the selected buildings, which is considered as a critical orientation that receives high solar radiation. The results showed that four out of the five investigated buildings achieved the minimum requirements for the OTTV, i.e., less than 50 W/m². The maximum and minimum OTTV values with the buildings’ original design were 82.60 W/m² and 41.54 W/m², respectively. However, one of the buildings achieved a lower OTTV value with the installation of shading devices by the owners, i.e., decreased from 48.39 W/m² to 37.60 W/m². The solar radiation penetration through the fenestration was found to be the major contributor to the total OTTV, while it can be controlled by the shading devices. Besides, using dark paints increased the heat conduction through the opaque walls by more than double compared to light paints. This study shows that some design considerations, such as paint colour, shading devices, and glazing material, can have a great influence on the heat gain in buildings.

Downloads

Download data is not yet available.

Author Biographies

Yasser Arab , Architectural Engineering Department, College of Engineering, Dhofar University, Oman

yarab@du.edu.om

Ahmad Sanusi Hassan, School of Housing, Building and Planning, Universiti Sains Malaysia, 11800 Gelugor, Penang, Malaysia

sanusi@usm.my

Zeyad Amin Al-Absi, Department of Architecture, Faculty of Engineering, Sana’a University, Sana'a, Yemen

zeyadaminalabsi@yahoo.com

Boonsap Witchayangkoon, Department of Civil Engineering, Thammasat School of Engineering, Thammasat University, Thailand

wboon@engr.tu.ac.th

Bushra Qanaa, Faculty of Architecture, Ittihad Private University, Syria

boushra-k2000@hotmail.com

Downloads

Published

2023-02-27

How to Cite

Yasser Arab, Ahmad Sanusi Hassan, Zeyad Amin Al-Absi, Boonsap Witchayangkoon, & Bushra Qanaa. (2023). OTTV’S Assessment on Thermal Performance of High-Rise Apartment Buildings in Penang. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 102(2), 21–32. https://doi.org/10.37934/arfmts.102.2.2132

Issue

Section

Articles