The glycerine with a mass flow rate of 700kg/h passes through a pipe with an inner diameter of 30 mm. The 2.5m long section of the pipe is used for heating and the pipe wall is kept at 115 °C for this...

The glycerine with a mass flow rate of 700kg/h passes through a pipe with an inner diameter of 30 mm. The 2.5m long section of the pipe is used for heating and the pipe wall is kept at 115 °C for this purpose. Glycerin enters the heating section at a temperature of 15°C. What is the outlet temperature of glycerine under stratified flow conditions? What is the length of the pipe required for the outlet temperature of the glycerin to be 115 °C?