simulate a problem in comsol/ansys

i have performed an experiment and now i need to simulate the problem in comsol/ansys to generate the same result as experiments. i need heat load inside the box dur to solar radiation
geometry details:
glass box size(1feet width, 1 feet height , 2 feet length/depth)
all walls are made of plain glass (thickness 3.5mm)
bottom surface is insulated.

case1:- all surfaces are exposed to sunlight.
case2:- same box but only front face is exposed to sunlight, other surfaces are covered with cardboard.
case 3: same box but all surfaces are covered and heat is transferring due to temperature difference between inside box and surrounding temperature.

need to calculate the heat load inside the box in each cases, result should be same as experiments data.
Please find the attached files of configuration and experiments recorded data.