Sorry I dropped off the radar, been caught up in the floods in Brisbane Australia.
I'm pumping water at 11 litres/minute and need to know the energy input required to heat that flow rate to 80C (from 20C).
Thanks for your patience.
Sincerely,
Adam
I think the following applies for heating water 11L/minute (0.183 kg/s) at 80C (dt is 55C)
q = h / ( cp ρ dt )
where
q = volumetric flow rate
h = heat flow rate
cp = specific heat capacity
ρ = density
dt = temperature difference
h = q ( cp ρ dt ) and
h = 0.183 ( 4.2 ) ( 55)
h = 42 kW
