Core parameters and simplified calculation of boiler thermal efficiency

Based on the calculation principle of heat balance of the boiler, establishes a mathematical model, and studies the simplified calculation method for thermal efficiency. Determines the core parameters to calculate the thermal efficiency of the boiler. Gives the relationship curve between major heat loss and the core parameters. Gets the simplified formula for calculation of boiler thermal efficiency, which correlates carbon content in ash and exhaust gas temperature. The verification shows that the calculation result of the simplified formula is accurate and reliable, and it can be used as a basis for the online calculation of boiler thermal efficiency.