Hi,
It is very easy to calculate the heat transfer through glass window. However, one needs the indoor and outdoor conditions such as convective coefficients, optical properties (emmisivity, transmivitty etc) and outdoor velocity. Also, the orientation of the window is required. You can use...
There are two modes of heat transfer involved.1)thermal radiation, 2)convection. One dimensional analysis would yield:
q_total = (T_sink - T_air)/R_total
where R_total= 1/(hA) + 1/(h_rad *A)
where h = convective heat transfer coefficient and is a function of the fluid properties, temperature...
