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temperature on the hot side is required to be 323 K. Calculate the area of the heat
exchanger by LMTD approach and Effectiveness- NTU approach. The
individual heat transfer coefficients on both sides are 1600 W/ (m?.K). Also find
the outlet temperature of the cold water. Use C, for both hot and cold water as
4157 J/ (1.2.15).
Explain in detail about the inspection and testing methods involved in piping of
process plant.
Write down the general design procedure to determine the heat transfer area and
economy of the evaporator.
PART C

Answer any two full questions, each carries 20 marks.
Mention the various components of belt conveying system and explain its
working mechanism with neat diagram.
Explain the working of vapor compression refrigeration system with pressure-
enthalpy diagram.
Describe in detail about the cleaners and graders used in the food process
industries.
Derive the Plank’s equation to calculate the freezing time of the food material
for infinite plate/slab geometry.
Differentiate the definition and importance of controlled and modified

atmospheric storage of food materials.

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