A single body-two pipe heat exchanger will be used to condense 3900 kg/h steam at 1 atm. It can be assumed that the steam enters the body part as saturated vapor and exits as saturated liquid. Water will be used as the refrigerant entering the pipes at 40C. By choosing an appropriate total heat transfer coefficient (U) value, create an appropriate design that determines the number of pipes in each pipe pass, the outlet temperature of the water, the pipe diameter and lengths at each pipe pass, and the mass flow of water. Estimate the stem inside diameter that may be required. Evaluate the various alternatives and discuss the factors influencing your design choice before choosing the final design.