A 1-1/U counter flow plate and frame heat exchanger has 39 total plates. The plates are made from titanium and stamped with a 45° chevron pattern. Each plate has a length of Lp = 32 in and a width of Lw = 17 in. The plate thickness is 0.04 in and the plate pitch is 0.14 in. The plate enlargement factor is 1.16. All port diameters are 2.5 in. The hot fluid, hard water, flows at 120,000 lbm/hr with an average temperature of 145°F. The cold fluid is hard water flowing at 150,000 lbm/hr and an average temperature of 50°F. Determine the

a. Conduction resistance between the two fluids due to the plate (hr-ft2-°F/Btu).
How does this compare with the fouling factor on each side of the plate?

b. Pressure drop of the hot and cold water flows due to friction effects of the plates (psi)

c. Pressure drop of the hot and cold water flows due to port losses (psi)