quantitative relationship between COP and Δt
GBA Editor| Posted inEnergy Efficiency and Durabilityon
I’ve come to realize the COP drops as Δt increases, but what’s the quantitative relationship between them? For example, now I know the COP at a given temperature difference, how do I calculate the COP at other temperature differences? Thanks.
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So that I can follow this thread, what is COP?
to John Klingel
COP, coefficient of performance, a term used in evaluating energy efficiency.
The relationship will vary depending on the size, type and efficiency of each heat pump. See:http://www.heatpumpcentre.org/About_heat_pumps/HP_performance.asp
What you really should be looking at is the SEER (seasonal energy efficiency ratio) or HSPF (heating season performance factor), which takes into account the seasonal variations in source temperature and the part load factor, which are climate zone dependent.
Or, perhaps, this is what you're looking for:
http://en.wikipedia.org/wiki/Coefficient_of_performance