SPECIFICATION SHEET • SI METRIC
CAT: THERMO
Boiler Efficiency & Fuel Rate
Estimate useful boiler heat duty, fuel input, thermal efficiency, and specific steam fuel consumption from steam and fuel measurements.
OPERATING LIMITS — Direct boiler heat-balance calculation only; reconcile HHV/LHV basis, blowdown, auxiliary loads, radiation, unburned fuel, and the applicable boiler test code before reporting efficiency.
INPUT DESIGN PARAMETERS (SI)
kg/h
kJ/kg
kJ/kg
kg/h
MJ/kg
CALCULATED SPECIFICATION OUTPUT
Useful Steam Heat Duty
3277.78 kW
| Fuel Input Duty | 4151.39 kW |
| Boiler Thermal Efficiency | 78.96 % |
| Specific Fuel Consumption | 0.07 kg fuel / kg steam |
Technical Methodology & Engineering Principles
GOVERNING EQUATION
Useful heat = steam flow × (steam enthalpy − feedwater enthalpy); fuel input = fuel flow × heating value; efficiency = useful heat / fuel input × 100.
Assumptions & Scope
Steady-state direct efficiency screen; enthalpies and heating value are entered on a consistent basis. Account for blowdown, radiation, unburned fuel, auxiliary power, and HHV/LHV convention in a full boiler test.
Operating Range & Boundary
Use finite, physically meaningful inputs within the stated operating assumptions.