Please complete 1-3 in full detail since all 3 correlate with each other. Thanks

1) Determine the Reynolds number on the heat exchanger's raw side (cold mix). 2) Using the above-calculated Reynolds number, calculate the pressure drop due to friction in each channel for the respective flow rate on the raw side. 3) Using the above-mentioned pressure frictional drop, calculate the power required for the pump used to feed raw mix.

Given:

As the regeneration section of an HTST, a counter flow plate heat exchanger is used to heat raw (unpasteurized) milk with hot pasteurized milk. The heat exchanger is made up of 41 plates. Each plate measures 1.52 m in height and 0.6 m in width. The distance between the plates is 3 millimeters. At a rate of 2.5 kg/s, raw milk at 20C enters the heat exchanger. The hot milk counter is currently set to 75C. Physical properties of milk are provided in the table below for the given temperature range:

At 75 C At 20 C 0.001 0.003 Property Viscosity, Pa.s Thermal conductivity, W/mC Heat capacity, J/KgC Density, kg/m3 0.64 0.56 3900 3900 1030 1030 RAW MIX IN, T = 20 deg C, P=? HOT MIX OUT, P = ?, T = ? HOT MIX IN, T = 75 deg C, P RAW MIX OUT, T=?, P = 120 kPa