Hot water is to be heated from 10°C to 30°C at the rate of 300 kg/s by atmospheric pressure steam in a single-pass shelland-tube heat exchanger consisting of 1-in. schedule 40 steel pipe. The surface...

Hot water is to be heated from 10°C to 30°C at the rate of 300

kg/s by atmospheric pressure steam in a single-pass shelland-tube heat exchanger consisting of 1-in. schedule 40 steel

pipe. The surface coefficient on the steam side is estimated to

be 11,350 W/m2 K. An available pump can deliver the

desired quantity of water provided the pressure drop through

the pipes does not exceed 15 psi. Calculate the number of

tubes in parallel and the length of each tube necessary to

operate the heat exchanger with the available pump.