To verify the accuracy of the developed mathematical
model for the complex fenestration system (glass window
with a venetian blind installed) in the shortwave part, the
experiment is performed in the test room. The test room
is constructed with a test window of 0.9 1.1 m facing
west. The room is located on the fourth floor of Hans Buntli
building, Mechanical Engineering Department, Chulalongkorn
University. The room is constructed as a
double wall room with a 2-in. fiber glass in between to minimize
the heat losses. The west wall is constructed with aluminum
cladding as the exterior surface and gypsum board
as the interior surface with a 2-in. fiber glass in between.
The inner surfaces of the test room are painted black.