Process Equipment Design -I — Winter 2020

o Q.6. 2. Q.7 is compulsory. 3. Make suitable assumptions wherever necessary. 4. Figures to the right indicate full marks.

Explain various locations of pressure taps with neat sketch in orifice meter.

Write a brief note on NPSH for centrifugal pumps.

Give the functions of various parts of shell and tube heat exchanger.

Write a brief note on Fluid allocation in shell and tube heat exchanger.

Explain Tinker’s flow model with a neat diagram.

Discuss in detail about criteria of selection between kettle type and thermosyphon reboiler.

Define: Weeping, Entrainment, Coning in distillation column

Explain the method for determining minimum reflux ratio for binary distillation

Discuss the criteria of selection among the different types of trays used in tray tower.

Explain in short –Jet flooding and Downcomer Flooding.

Write short note on selection of key components in multicomponent distillation.

Explain McCabe Thiele Method and FUG method in detail

Explain the functions of liquid redistributor and hold down plate in absorber.

With neat sketch explain the various types of packing support used in packed column

Discuss the criteria for selection of various absorption equipments.

State and discuss in short the various types of Liquid Distributors

Discuss in brief Random and Regular packing.

Design a scrubber for absorbing acetone vapor from air acetone vapor mixture by using water as a pure solvent. The temperature in scrubber is 25⁰C and scrubbing is isothermal. Operating pressure of scrubber is near atmospheric. Amixture of air with acetone vapor containing 6% by volume of acetone is passed through the scrubber. The mixture contains 1400 m3/hr of air. The scrubber is required to absorb 98% of the acetone. At 25⁰ Cvapor pressure of acetone = 228.416 torr1

Discuss the industrial applications of Liquid Liquid Extraction.

Discuss in brief the design steps for the process design of horizontal settler