heat transfer

4. Calculate the actual heat transfer rate in kW. The heat exchanger configuration consists of 1 pass on the shell side and 14 passes on the tube side. The objective is to heat the water inside the lubes using geothermal steam, which condenses at 120C (tatent heat 2203 kJ/kg ) on the shell side. The tubes have a diameter of 2.4cm and a length of 3.2m per pass. Water enters the tubes at 22C, with a flow rate of 3.9kg/s and a specific heat capacity of 4180J/kgC. The outlet temperature of the water is 74 " C. a) 749.8 b) 450 c) 847700 d) 1206.3 e) 749800 f) 550 g) 847;7 hi) 350