Thermal performance of two exterior walls of a building constructed with hollow reinforced precast concrete panels was
determined in situ. The instrumented building and the test room walls are shown in Figs. 1 and 2.
The exterior walls of the test room, facing the North and the East, were instrumented using heat flux sensors, air temperature sensors, and thermocouples. Each exterior wall was instrumented with thermocouples on the inside and outside surfaces and three heat flux sensors on the inside surface. In addition, air temperature sensors were also installed on the inside and outside sides of the walls. The locations for placement of heat flux sensors were determined using an infrared thermographic camera to avoid the areas with thermal leakage. The air temperature inside the room was controlled by installing a split type air-conditioner. The set point of
the air-conditioner was 22 ◦C.
The North and East facing exterior walls of the test room were
painted on the inside and outside by the cream colored paint. The
walls of the test rooms were made of 150cmwide, 320cmhigh, and
30cm thick reinforced precast concrete wall panels with a hollow
air space of 16cm thickness as shown in Fig. 3.