I'm researching about Ground Source Heat Pumps and I would like to get a graph, a table or a formula of a typical source temperature-COP relation for a heat pump.
The hot source would be a radiant panel (35°C) or fan coils (45°C).
Usualy, HP manufacturers give only a W0/B35 (that is: water temperature of the cold source = 0°C, brine temperature of the hot source = 35°C) COP value (i.e. 4.2-4.5), or a W0/B45.
Can somebody help me?
