Your design team needs to select a proper heat exchanger for the cooling of hot oil from 200C and 2 kg/s. The cooling agent is a local river water, flowing in at a design rating of 60 liters/min and 27C. By comparing the heat exchanger effectiveness, select the best heat exchanger for the design considering these heat exchanger types: 1-compact with both fluid unmixed 2-one-shell pass and 4-tube pass 3-two-shell pass and 8-tube passes Also, predict the exit temperature of the hot oil for all three designs. The total tube area for each design is limited to 20 m, and the overall heat transfer coefficient between both fluids is 300 W/m The specific heat for the oil and water are 4.48 kJ/kg.K and 4.18 ki/kg.K respectively. The river water density is 990 kg/m. (Ans: 7 145.7C-148.9C)