Calculating Steam Boiler Efficiency
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Posted by: matin ® 06/16/2005, 12:56:17 Author Profile eMail author Edit

How to calculate the efficiency of Waste Heat Recovery Boiler running on engine Exhaust Total Capacity 1 ton/hour Pressure 150 PSI Heating Surface Area 1760 Sq-ft

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Re: Calculating Steam Boiler Efficiency
: Calculating Steam Boiler Efficiency -- matin	Post Reply	Top of thread	Engineering Forum

Posted by: saami ® 06/25/2005, 03:22:53 Author Profile eMail author Edit

Dear Matin... I'm sorry, I think I can't help you to find the efficiency... Bcoz we should have more details like temperature of the gas entering, gas leaving the boiler, temperature of water entering and steam going out. this is reqd bcoz we have to have enthalpy values and calorific values of the fuel i.e. heat in the exhaust gas etc... If you find the answer please let me know. i'll try to get u the answer... regards, palani.

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: Re: Calculating Steam Boiler Efficiency
: Re: Calculating Steam Boiler Efficiency -- saami	Post Reply	Top of thread	Engineering Forum

Posted by: azizkamal ® 06/16/2009, 13:31:03 Author Profile eMail author Edit

Dear Palani I have the following data of a Water Tube boiler. Can u help me find the efficiency of the boiler with the help of following data. Deaerator Pressure = 1.72kg/cm^2 Feed Water FlowRate = 9.4 Tons / hr Feed Water Temperature = 129.31 deg C Feed Water Pressure = 30.09kg/cm^2 Air Flowrate = 9388.5 m^3/hr Fuel oil Pressure = 0.924 kg/cm^2 Fuel Oil Temperature = 81.96 deg C Oil Flowrate = 107.2 kg/hr Gas Flowrate = 372.6 m^3/hr Fuel Gas Pressure = .503 kg/cm^2 Steam Make/Flowrate = 8.59 Tons/hr Super Heater Pressure = 19.57 kg/cm^2 Drum Steam Pressure = 20.08 kg/cm^2 Super Heater Temperature = 266.93 deg C Calorific Value of Fuel Oil is 18000 Btu/lb Calorific Value of Gas is 1000 Btu/ft^3 Thanks in Advance Regards, Kamal Modified by azizkamal at Tue, Jun 16, 2009, 13:46:07

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