Cost Savings Analysis

Rectangular Tube Recovery (RTR)

Data without a Cain System

• Combustion source: 55,000 PPH Steam Boiler
• Heat Sink:Boiler Feedwater
• Waste Exhaust Temp: 509 °F
• Water Temp Inlet: 227°F
• Btu/hr Burner Input: 70,000 Mbtu
• Fuel Type: Kerosene
• O2 Content: 2.95%
• Excess Air: 15%
• Fuel Cost Per Therm: $0.70
• Annual Operating Hours: 4,000

Performance with a Cain System

• Boiler Feedwater Flow : 118 GPM
• Final Exhaust Temp: 343°F
• Water Temp. Outlet: 276 °F
• Water Pressure Drop: 0.87 PSIG
• Exhaust Pressure Drop: 0.68 WC"
• Btu/hr Recovered: 2,781,000
• Total Cost: $45,009
• Payback: 5.6 months
• Annual Return On Investment: 215%
• Annual Savings: $96,816