SRU SERIES WASTE HEAT RECOVERY CALCULATION SHEET
Fuel savings: 9.68%
Project: ABC Company: 53 gpm
Place: Atascadero
Customer: Sid
Date: 06/21/02
SRU type: 40
Heating surface (sq.ft.): 3,094
Gas consumption (cu.ft/hr): 16,772
Excess air: 1.1
CO2 flue gas%: 10.2
Combustion air temperature oF: 68
Flue gas flow (cu.ft./hr) : 198,062
Flue gas inlet temp (oF): 399
Flue gas outlet temp (oF): 103
Flue gas back pressure in H2O: 0.5512
Water flow (gpm): 53
Water inlet temp oF: 60
Water outlet temp oF: 121
Water back pressure (psi) :0
Condensate (gph): 69
Capacity (BHP): 48
Capacity (BTU/hr): 1,625,295
Fuel savings: 9.68%