What is the 'heat loss method' for determining boiler efficiency, and what parameters does it consider?

The 'heat loss method' for determining boiler efficiency calculates the efficiency by subtracting the sum of all heat losses from 100%. It is an indirect method, as opposed to the direct method which measures the energy input and output. In essence, it determines how much of the energy from the fuel is *notconverted into useful steam and accounts for these losses. The key parameters considered in the heat loss method include: 1) Heat loss due to dry flue gas: This is the sensible heat carried away by the dry components of the flue gas (excluding water vapor). It depends on the flue gas temperature, the ambient temperature, and the specific heat capacity of ....