Determine the Fuel power supplied to a boiler so that the temperature of the entering water is 20 C and the exiting temperature is 89 C (Calculate the mass flowrate of fuel (natural gas, CH4) required to heat the water flow). The flow of.the pressured water is 2 Kg/s. There is a negligible pressure drop through this boiler and it operates at a constant pressure of 3 bars. The specific heat is c = 4,370 J/(Kg K). There is a 150000) W rate of heat loss from the boiler during this process to a surrounding at 293.2 k. The high heating value (HHV) of the fuel is 50.02 MJ/kg. Consider steady state conditions. Calculate the exergy destroyed in the process. The exergy of the fuel entering this process is 51.82 MJ/Kg. Products of combustion leave at dead state.
Determine the Fuel power supplied to a boiler so that the temperature of the entering water is 20 C and the exiting temperature is 89 C (Calculate the mass flowrate of fuel (natural gas, CH4) required to heat the water flow). The flow of.the pressured water is 2 Kg/s. There is a negligible pressure drop through this boiler and it operates at a constant pressure of 3 bars. The specific heat is c = 4,370 J/(Kg K). There is a 150000) W rate of heat loss from the boiler during this process to a surrounding at 293.2 k. The high heating value (HHV) of the fuel is 50.02 MJ/kg. Consider steady state conditions. Calculate the exergy destroyed in the process. The exergy of the fuel entering this process is 51.82 MJ/Kg. Products of combustion leave at dead state.
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