THERMOPHYSICAL CHARACTERIZATION OF WALL AND THERMAL INSULATION SYSTEM FOR ENVIRONMENTALLY FRIENDLY BUILDING APPLICATION

• Main Author: Thomas, Dixon
• Format: Final Project
• Language: Indonesia
• Subjects: Fisika
• Online Access: https://digilib.itb.ac.id/gdl/view/41497
• Institution: Institut Teknologi Bandung

Number of building in cities have high contribution to the rise of temperature in city area. When number of building increase, number of building’s wall that exposed to sunlight is increased so that the amount of solar energy absorbed is increased. The porpose of this final project is to find new wall thermal insulation system to overcome heating problem in city area through thermophysical characterizing process done by experiments and simulations. Experiments are carried out for 4 types of wall: brick wall, aerated concrete wall, multiplex wall, and GRC wall with area of 1m x 1m. Each wall heated by 2000 Watts halogen lamp for 4 hours and then cooled for 4 hours that emulate the process of eastern side of wall that heated from 8 A.M. until 12 P.M. and cooled from 12 P.M. until 4 P.M. Temperature data was taken every 5 minute using thermocouple and infrared camera. Thermal behvior of the walls also simulated using Energy2D program and electrical circuit analogy for thermal system. Experiment’s results show that thermophysical parameters that affect wall’s thermal behavior are thermal conductivity, specific heat, density, solar absorptivity, and wall’s dimension. These thermophysical parameters are varied using simulation to find the best thermal insulation material. For this experiment, mat-corn or corn husk based thermal insulation system is chosen. Through thermal behavior test for this insulation system, we conclude that mat-corn thermal insulation has good performance that can be compared to conventional thermal insulation materials nowdays.