It is proposed to heat olive oil in a straight pipe heat exchanger (diameter d = 0.1 m) in which it is heated by condensing steam (P = 4 bar) on the outside of the pipe. The wall of the pipe is thin and made from stainless steel. The oil is to be heated from 20 C to 140 C and flows at a mass flow rate of 15 kg s. i) ii) v) Determine the heat duty for the heat exchanger (i.e. total heat to be transferred). What mechanism governs heat transfer from the olive oil to the pipe wall? Estimate the heat transfer coefficient for the olive oil in the pipe. Estimate the length of pipe required to heat the oil. State any assumptions required. Briefly comment on whether the proposed heat exchanger design is suitable.