Gujarat Technological UniversitySummer 2026 examination

GTU 3170502 Process Equipment Design Summer 2026 Question Paper & PDF

B.E. · Chemical Engineering · Semester 7 · Subject code 3170502
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 2:30 PM – 5:00 PM
Questions
5 with internal choice
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Q.1

14 Marks
(a)
3 marks
Explain in brief about equivalent length of pipe and joints.
(b)
4 marks
Write a note on NPSH for centrifugal pump.
(c)
7 marks

Benzene at 37.8 °C is pumped through the system at a rate of 9.09 m³/hr. The tank is at atmospheric pressure. Pressure at the end of discharge line is 345 kPa g. The discharge head is 3.05 m and the suction lift is 1.22 m above the level of liquid in the tank. The friction loss in suction line is 3.45 kPa and that in the discharge line is 37.9 kPa. The mechanical efficiency of the pump is 0.6. The density of benzene is 865 kg/m³ and its vapor pressure at 37.8 °C is 26.2 kPa. Calculate

i)(NPSH)A and
ii)Power required by the centrifugal pump.

Q.2

14 Marks
(a)
3 marks

Discuss the function of Tie rods, Baffles and spacers in shell and tube heat exchanger.

(b)
4 marks
Discuss Tinkers flow model
(c)
7 marks
Write the general steps for the design of shell and tube heat exchanger.
(c)
7 marks

State the difference between kettle type reboiler and thermosyphon reboiler and describe its uses.

Q.3

14 Marks
(a)
3 marks

Define Weeping, Flooding velocity and entrainment in context with distillation column.

(b)
4 marks
Discuss selection of key components for multicomponent distillation.
(c)
7 marks

Discuss Mcabe Thile method for calculation of number of trays in distillation column.

(a)
3 marks
Discuss about the various packings used in a distillation column.
(b)
4 marks
State the advantages and disadvantages of vacuum distillation.
(c)
7 marks

A saturated liquid, consisting of phenol and cresol with some xylenols, is fractioned to give a top product of 95.3 mole % phenol. Metacresol is heavy key and phenol is light key component. Total condenser is used. The composition of the top product and of the phenol in the bottom is given. Complete the material balance over the still for a feed rate of 100 kmol/h and

iiCalculate the minimum reflux ratio by Underwood’s method. Component αav Feed, mole % Top product, mole % Bottom product, mole % Phenol 1.98 35 95.30 5.24 o-Cresol 1.59 15 4.55 ? m-Cresol 1.00 30 0.15 ? Xylenols 0.59 20 -- ?

Q.4

14 Marks
(a)
3 marks
State different types of weirs and downcomers of tray tower.
(b)
4 marks

Discuss the purpose of liquid distributor, re-distributors, packing supports and hold down plate in packed absorption column.

(c)
7 marks
Differentiate between tray column and packed column.
(a)
3 marks
What is channeling and discuss the ways to avoid channeling.
(b)
4 marks
Describe selection criteria for solvent in absorption column.
(c)
7 marks
Discuss process design steps of absorber.

Q.5

14 Marks
(a)
3 marks
Define Internal design pressure, Design stress and External design pressure.
(b)
4 marks
State different types of head with their selection criteria.
(c)
7 marks
Discuss different types of equipment and explain different static equipment.
(a)
3 marks
What is Radiography? Discuss types of radiography.
(b)
4 marks
Discuss different types of agitators.
(c)
7 marks

Describe design steps of vertical cylindrical pressure vessel and head subjected to internal pressure.

Other Semester 7 subjects

BE Chemical

2170501
Chemical Reaction Engineering - II
2170502
Process Equipment Design -II
2170507
Computer Aided Process Synthesis
3170501
Chemical Reactions Engineering II

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About this paper

Official Gujarat Technological University (GTU) examination paper for Process Equipment Design (Summer 2026, B.E. · Chemical Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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