A 1-1/U counter flow plate and frame heat exchanger is being used to warm a flow of cold acetone. The acetone enters the heat exchanger at 25°F with a flow rate of 315,000 lbm/h. Soft water at 50°F and a flow rate of 220,000 lbm/h is used to provide the required heat transfer. The heat exchanger has 236 plates made of AISI 316 stainless steel, stamped with a 45° chevron pattern. The plate thickness is 0.04 in and the plate pitch is 0.14 in. The vertical and horizontal port distances are 35 in and 18 in, respectively. The plate width is 21.5 in. The port diameters are 3 in. The fouling factor of acetone is estimated as 3 × 10–5 h-ft2-F/Btu. If the maintenance schedule for this heat exchanger is yearly, determine the,

a. Outlet temperature of each fluid (°F)

b. Pressure drop of each fluid as it passes through the heat exchanger (psi)

c. Heat transfer duty (e.g., the heat transfer rate between the fluids) (Btu/h)