SRU SERIES WASTE HEAT RECOVERY CALCULATION SHEET
Fuel savings: 14.21%
Project: ABC Company...................................................................: 250 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): 400
Flue gas outlet temp......................................................................(oF): 76
Flue gas back pressure ............................................................in H2O: 0.4649
Water flow................................................................................. (gpm): 250
Water inlet temp...............................................................................oF: 60
Water outlet temp.............................................................................oF: 79
Water back pressure.....................................................................(psi) :0
Condensate...................................................................................(gph): 142
Capacity......................................................................................(BHP): 71
Capacity...................................................................................(BTU/hr): 2,385,839
Reduced CO2 emissions..................................................................lb/hr: 2281
Fuel savings:........................................................................................14.21%