THE EFFECT OF CELLULOSE BASED-THERMAL INSULATION IN CONTROLLING THERMAL BEHAVIOR OF BRICK WALL

• Main Author: Andoni, Heri
• Format: Theses
• Language: Indonesia
• Subjects: Arsitektur
• Online Access: https://digilib.itb.ac.id/gdl/view/41779
• Institution: Institut Teknologi Bandung

Research on thermal insulation generally focuses on its application on the inner wall and its effect on room temperature and thermal comfort of indoor spaces. There is lack of information about thermal insulation installed on the exterior wall and its effect on the outside temperature and the surrounding environment. The purpose of this study is to determine the extent to which the use of thermal insulation on the outer thermal insulation can play a role in controlling the building's thermal behavior. In addition, this research also explored what thermal insulation applications are capable of playing optimal role in controlling thermal behavior. This lab-scale study will focus on cellulose-based thermal insulation, namely newsprint and corn husk applied to brick walls. As a substitute for solar heat, two 1000 Watt power lamps will be used where the wall will be heated for four hours, and then cooled for four hours. The effect of using cellulose-based outer thermal insulation is done by comparing the brick wall before and after using the outer thermal insulation, looking at the extent of its contribution to decreasing air temperature near the outer surface, brick surface temperature, and thermal behavior of the brick wall after the insulation was applied. The results showed in the cooling process, after the addition of insulation, a decrease in surface temperature of ± 1.01-1.41 ° C, a decrease in air temperature near the outer surface of ± 1.16-2.06 ° C, a reduction in thermal transmittance of 0,94- 1.49, reduction of re-emitted heat by ± 28.4-30.88 W/m2, addition of thermal resistance by 0.21-0.5, and addition of thermal diffusivity to 252.59 m2/s. However, during the heating process, the thermal insulation plays a role in contributing excess heat to the environment with an indication of an increase in air temperature near the surface of 2.78 ° C and the addition of re-emitted heat of 72.08-97.98 W / m2.This research is expected to provide alternative solutions to control thermal behavior of buildings in an effort to mitigate the external environment and heat island.