First off, I get the general concept. Mixing heats of different temperature is a problem, so it makes sense to divert low-temperature heat to a different set of radiators than high-temperature heat.
What I don't understand about it is the math... More precisely, I haven't been able to find it, which left me a bit puzzled. How exactly do I mix heats of different temperatures mathematically?
Also, is there any significant difference in the construction of low temp and high temp radiators (I understand that high-temp radiators are hypothetical as noone has yet had a reason to build one, but the concept is well enough understood), or is their only difference the context in which they are being used? I assume that both radiate heat according to the Stefan Bolzmann law (approximately at least), or are there different dynamics at work for low temperature radiators?
What I don't understand about it is the math... More precisely, I haven't been able to find it, which left me a bit puzzled. How exactly do I mix heats of different temperatures mathematically?
Also, is there any significant difference in the construction of low temp and high temp radiators (I understand that high-temp radiators are hypothetical as noone has yet had a reason to build one, but the concept is well enough understood), or is their only difference the context in which they are being used? I assume that both radiate heat according to the Stefan Bolzmann law (approximately at least), or are there different dynamics at work for low temperature radiators?