Hot water circulating pump power calculation example of how to calculate the number of hot water circulation pump?
The use of air source heat pump water heater to provide hot water, do not know how to calculate the hot water circulation pump, examples are as follows:
Air source heat pump for living hot water, the daily need to live hot water 30T, then the hot water circulation pump power need to be much more detailed calculation is as follows: head (need to increase the height of water),
Flow: kg / h.
If the lift 32 meters, flow 12000 kg / kg h =3.333 / seconds 32*3.333=107 kg m / about second pump efficiency 50%------55% 107/102/0.55*1.2=2.51KW (kg m, kW, efficiency, safety factor need 3 kW motor.
