The condenser of a steam power plant is a shell and tube design with cooling water flowing through the tubes. The condenser has 4 tube passes inside of a 39-inch shell. The tubes are 1½-in 12 BWG tubes on a 1 7/8-in triangular pitch. The cooling water enters the heat exchanger at a flow rate of 300 kg/s at an average temperature of 30°C. Determine the Reynolds number of the water flow inside of one of the tubes of this heat exchanger.