Different parameters have different calculation methods.

If you know the flue gas quantity M* temperature difference Δt multiplied by the specific heat,

the temperature difference is a temperature (high temperature) that you already know-minus the designed outlet flue gas temperature of the waste heat boiler (generally it is economical to be at least 21-31℃ higher than the saturated steam temperature).

The outlet flue gas temperature is related to the boiler itself.

Pressure and temperature. Then calculate the temperature difference.

Without specific heat calculation, directly find out the Han values of high-temperature flue gas and low-temperature flue gas. Subtract, the difference multiplied by the amount of flue gas is heat.

Knowing the parameters of steam, we can know how much heat is needed for 1 tons of steam, which is generally about 711kW, which corresponds to 1 ton of steam.

Of course, the composition will also have an impact on the calculation. It is not specific and cannot be said clearly.