IS 13306 : 1992 Oil and gas fired thermic fluid heaters - Method of calculation of film temperatures

1 Scope

1.1 This standard specifies the method of calculation of maximumfilm temperature of thermic fluid occurring in heaters fired witheither oil or gas as fuel with or without preheating of combustionair using single phase liquid flowing inside tubes. The method isvalid for petroleum based thermic fluids as well as syntheticthermic fluids. This standard is not valid if two phase flows occurwithin the combustion chamber.

1.2 The standard is applicable for coil type combustion chambersas well as refractory lined combustion chambers with convectiontube banks arranged within and or at the exit of the combustionchamber.