Please answer it with your best $,$ i want to learn it$,$ please do your best i will upvote, A water vapour stream at $150C$ is being cooled to a saturated steam at $100C$ in a one shell

and two tube passes heat exchanger. Onsite process water at $25C$ is used on the tube side at a

flow rate of $20kg{s}^{-1}.$ The heat exchanger is designed with an overall heat transfer coefficient

of $2000W{m}^{-2}{K}^{-1}.$ The properties of water and water vapour can be found in Table $4.$

Table $4$: Fluid properties

a$)$ If the onsite process water exiting the heat exchanger is to be discharged into a plastic

holding tank and the maximum temperature permitted for discharge is $40C,$ determine the

water vapour flowrate and comment on the restriction to prevent the onsite process water from

exceeding the maximum permitted temperature.

b$)$ Use the correction factor method to determine the number of tubes required in the heat

exchanger if the length of the heat exchanger is $2\mathrm{.}5m$ and each tube has a diameter of $25mm$

with negligible thickness.

c$)$ If $100$ tubes are used, calculate the convective heat transfer coefficient inside the tubes.