Investigation of earth tube system application in low income building in Kuching, Sarawak

Imran, Muhammad Syukri and Azhaili, Baharun and Siti Halipah, Ibrahim and Wan Azlan, Wan Zainal Abidin (2017) Investigation of earth tube system application in low income building in Kuching, Sarawak. Journal of Engineering Science and Technology, 12 (6). pp. 1433-1445. ISSN 18234690

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Abstract

Modern residential building in Malaysia particularly in Sarawak rarely consider the ground as a source of heat sink to cool down the building. This is probably due to the lack of information on surveyed ground temperature and energy modelling of such building. A typical low income residential building in Sarawak with earth tube was modelled in Energy Plus to determine the effect of earth tube to passively cool the building in Sarawak. From the simulation result, the indoor air temperature of the east facing zone of the building could be lowered from 33°C to 29.5°C. A further drop of about 0.6°C could be achieved if the room volume served by the earth tube is reduced. The PMV of the building were greatly reduced from 3 to 1.5 on a thermal sensation scale. The operative temperature is within 80% acceptability limits of 30.3°C operative temperature as per ASHRAE Standard 55 for naturally conditioned spaces. © School of Engineering, Taylor’s University.

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