Water is flowing inside a horizontal 1¼ inch schedule 40 steel pipe at 37.8°C and at a velocity of 1.52 m/s. Steam at 108.3°C is condensing  on the outside of the pipe wall and the steam coefficient is  assumed to be constant at 9100 W/m². K. The length of the pipe is 0.305m.   1.1 Calculate  the convective heat transfer coefficient (hi W/m².K) for water inside the pipe?  1.2 calculate the overall heat transfer  coefficient (U0 W/m².K) based on the outside surface  area? 1.3 calculate  the heat transfer  rate, q (W) ? Note that you will have to use the trial and the error method. The pipe wall temperature on the inside must be assumed first. As a starting point assume a temperature  of pipe wall to be equal to the temperature of water plus 47% of the difference  between water and steam temperature .

Water is flowing inside a horizontal 1¼ inch schedule 40 steel pipe at 37.8°C and at a velocity of 1.52 m/s. Steam at 108.3°C is condensing  on the outside of the pipe wall and the steam coefficient is  assumed to be constant at 9100 W/m². K. The length of the pipe is 0.305m.

1.1 Calculate  the convective heat transfer coefficient (hi W/m².K) for water inside the pipe? 

1.2 calculate the overall heat transfer  coefficient (U0 W/m².K) based on the outside surface  area?

1.3 calculate  the heat transfer  rate, q (W) ?

Note that you will have to use the trial and the error method. The pipe wall temperature on the inside must be assumed first. As a starting point assume a temperature  of pipe wall to be equal to the temperature of water plus 47% of the difference  between water and steam temperature .