Determine the maximum capacity rating of the boiler unit in lb/h for steam or millions of Btu/h for high temperature water generators. Measure: gas temperature (FGT) °F or °C; combustion air temperature in flu % by volume; actual unit output lb/h millions of Btu/h; If FGT and CAT are measured in °C convert to °F.
(PDF) Boiler Calculations | Michael Dellon - Academia.edu
The losses caused by the sensible heat of flue gases can be calculated as: m& i L 3 = m& fuel hi (11) i m& fuel where m& fuel is the fuel mass flow [kg/s] m& i the mass flow of a flue gas component and hi the specific enthalpy of a flue gas component (e.g. CO2) [kJ/kg].
Flue Gas Temperature. The flue gas temperature is the temperature of the combustion gases as they exit the boiler. If the flue gas temperature is high then it is often associated with heat being lost. Flue gas economizers can be installed to recover heat and enhance the overall . Radiation and Convection Losses