Quantity of Waste Heat (Waste Heat Recovery)
How much heat is available? This can be derived from plant descriptions or by direct measurement. The amount of available heat can be calculated from the following basic energy flow rate equation:
Q = SVĎcpÎT
Formula:
Q = S Ă V Ă Ď Ă cp Ă ÎT
Where,Q = Energy flow rate
S = Cross sectional area
V = Flow velocity
Ď = Fluid density
cp = Fluid specific heat capacity
ÎT = Temperature difference between heat source and heat sink