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]]>Sample sizing calculations for BFW pumps and Fans for a typical Coal fired Boiler generating steam of 50,000 Kg/hr at 67 kg/cm2 and 485 degC. (110,000 lb/hr at 950 PSI & 905 F).

Feed Water inlet at 105 C and Exhaust gas temp at 150 C.

Let us first calculate heat load and fuel consumption of the above boiler.

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]]>The post Boiler Combustion Calculations by weight method appeared first on FireCAD Technologies : Boiler Design Software.

]]>Combustion calculations are starting point for Boiler or any Thermal equipment design. Here is a sample calculation done for Coal with calorific value of approximately 7200 Kcal/kg (12960 BTU/Lb). Coal composition in % is as follows:

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]]>The post Boiler Efficiency calculations appeared first on FireCAD Technologies : Boiler Design Software.

]]>Efficiency is a very important criterion in Boiler selection and Design. Efficiency figure depends upon the type of boiler as well as on the type of fuel and it’s constituents. For example, efficiency of a Bagasse fired boiler is about 70% where as that of oil fired boilers is about 85 %. Higher moisture content in Bagasse reduces it’s efficiency. So better criterion is efficiency based on LCV or NCV. This is widely used in Europe and efficiency based on HHV or GCV is used in other parts of the world.

There are basically two methods to calculate efficiency of the boilers : Input-Output method and Heat Loss method.

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]]>The post Boiler Heat Duty Calculations appeared first on FireCAD Technologies : Boiler Design Software.

]]>Convert actual steam rating into From and At 100 C Steam capacity from and at 100 C (212 F) is equivalent steam capacity if operating conditions are reduced to atmospheric pressure

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