23–107 A shell-and-tube process heater is to be selected to heat water (C, = 4190 J/kg · °C) from 20°C to 90°C by steam flowing on the shell side. The heat transfer load of the heater is 600 kW. If...

Extracted text: 23–107 A shell-and-tube process heater is to be selected to heat water (C, = 4190 J/kg · °C) 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 ve- locity of water is not to exceed 3 m/s, determine how many tubes need to be used in the heat exchanger. Steam 90°C 20°C Water FIGURE P23-107