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I'm using a pyranometer that on it's side says to have an output unit of 4.55 V/(W*m^-2). I'm unsure how to interpret this unit, so if anyone has any experience with this I would appreciate it.

I'm trying to find out to what extent the sun contributes to the heating of a room when it hits the window at certain angles.

If the sun shines on a window at some angle, are there any equations one could use to calculate the Watt-value at a given time?

Problem is that I don't really have any equipment except temp.gauges and heating devices. If I heat the room to a certain temp and notice how long it takes for the surrounding rooms to reach this temp I will have a period of time. Can I maybe calculate something from this?

I'm trying to verify the accuracy of some software that calculates heat transfer through buildings. This is to be done by some practical experiment, but I'm not quite sure how to set it up, so I want peoples ideas on this. I'm thinking of using a room, its u'values, heating devices, and the...

I know all of these, but I don't have an equation in which to put them and stir them all into a single number.

I'm determining the overall u-value accross a wall section. In the formula for doing this there is an "alpha". One for the outside and one for the inside. It is the thermal conductance, W/m2*K. Determining the value of this tends to be difficul since it depends on air speed, temp etc, so I was...