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SRU SERIES WASTE HEAT RECOVERY CALCULATION SHEET

Fuel savings: 13.32%

Project: ABC Company...................................................................: 150 gpm
Place: Atascadero
Customer: Sid
Date: 06/21/02

Boiler capacity......................................................................(BTU/hr): 16,790,000
.................................................................................................BHP: 400

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): 87
Flue gas back pressure ............................................................in H2O: 0.4857

Water flow................................................................................. (gpm): 150
Water inlet temp...............................................................................oF: 60
Water outlet temp..............................................................................oF: 90
Water back pressure......................................................................(psi) :0

Condensate...................................................................................(gph): 131
Capacity......................................................................................(BHP): 66
Capacity...................................................................................(BTU/hr): 2,237,072
Reduced CO2 emissions..................................................................lb/hr: 264

Fuel savings:........................................................................................13.32%

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