Reconsider Prob. 11–131. Using EES (or other) software, plot the number of tube passes as a function of water velocity as it varies from 1 m/s to 8 m/s, and discuss the results.

Data from problem 131

A shell-and-tube process heater is to be selected to heat water (c_p = 4190 J/kg · K) from 20°C to 90°C by steam flowing on the shell side. The heat transfer load of the heater is 600 kW. If the inner diameter of the tubes is 1 cm and the velocity of water is not to exceed 3 m/s, determine how many tubes need to be used in the heat exchanger.

Transcribed Image Text:

Steam 90°C 20°C Water