a minimalist rad testing outline (prepared for a client) is
here
there is nothing, no matter how simple, that cannot be made more complex
lord knows I am a Grand Master at such, but the goal is always the opposite
good designs are simple designs, quite true in testing
see no point in attempting to characterize the rad tube/fin profile surface temp,
no way to use the info and too prone to mounting induced variability
the other stuff was done, its described in the rad article
rads respond quickly and assessing equilibrium and valid mean values can be a real chore
even measuring in tenths (as compared to my norm of hundredths), the havoc caused by cycling AC is incredible
- then one has to figure out how to 'dump' the heated air so as not to jack up the amb temp
rad dissipation testing is a pain
a rule of thumb in rad design is that following tubes are only ~70% as effective as the preceding one
tubes can be offset but this then significantly increases the air side resistance, reducing the flow rate/velocity, etc