Gujarat Technological UniversitySummer 2026 examination

GTU 2160503 Process Equipment Design -I Summer 2026 Question Paper & PDF

B.E. · Chemical Engineering · Semester 6 · Subject code 2160503
Download official PDFView PDF here
Share with your class
Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 10:30 AM – 1:30 PM
Questions
5 with internal choice
No solutions on this paper yetNeed them for your exam? Ask once. Papers that students ask for are solved first, and we aim to add them within 24 hours.

Q.1

14 Marks
(a)
3 marks
Define NPSH and give its importance for pump design.
(b)
4 marks
Explain types and function of baffles in detail with sketch.
(c)
7 marks

Hexane 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 hexane is 659 kg/m3 and its vapor pressure at 37.8 °C is 33.71 kPa. Calculate

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

Q.2

14 Marks
(a)
3 marks
Why expansion joint is provided in fixed tube sheet heat exchanger?
(b)
4 marks
Discus in brief about fluid allocation for shell and tube heat exchanger.
(c)
7 marks

Discuss step wise design procedure for shell and tube heat exchanger without phase change.

(c)
7 marks

In vertical thermosyphon reboiler recirculation ratio is fixed by trial and error method. Discuss in detail with diagram, how to find or fix the recirculation ratio in the following conditions:

1). ΔPav > ΔPt
2). ΔPav << ΔPt
3). ΔPav ≈ ΔPt
4). ΔPav < ΔPt

Q.3

14 Marks
(a)
3 marks
Describe functions of down comer & mention types of down comers.
(b)
4 marks
Discuss in brief the factors affecting selection of tray type.
(c)
7 marks

Discuss merits and demerits of vacuum distillation over atmospheric distillation with appropriate example.

(a)
3 marks
Explain in short –Jet flooding and Downcomer Flooding.
(b)
4 marks
Write a short note on determination of optimum reflux ratio.
(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.

i)Complete the material balance over the still for a feed rate of 100 kmol/h and
ii)Calculate the minimum reflux ratio by Underwood’s method.

Q.4

14 Marks
(a)
3 marks
Explain the function of liquid distributors, liquid re-distributor.
(b)
4 marks
With sketch explain types of random and regular packings and their application.
(c)
7 marks
Discuss the criteria for selection of various absorption equipments.
(a)
3 marks
State the merits and demerits of falling film absorber.
(b)
4 marks
With sketch explain different types of packing support in tower absorber.
(c)
7 marks
Discuss about process design of venturi scrubber.

Q.5

14 Marks
(a)
3 marks
How to decide optimum solvent amount based on number of theoretical stages.
(b)
4 marks
Discuss selection of operating pressure for distillation column.
(c)
7 marks
Explain in detail the process design of counter current multistage extractor.
(a)
3 marks
Compare extraction, with absorption and distillation.
(b)
4 marks
List important industrial application of liquid-liquid extraction
(c)
7 marks
Discuss various applications of liquid – liquid extraction in chemical industry

Other Semester 6 subjects

BE Chemical

3160501
Mass Transfer Operations II
3160506
Chemical Reactions Engineering I
3160507
Advanced Separation Processes
3160510
Petroleum Refining and Petrochemicals

Preparing with friends?

Send this paper to your class group. Every question has its own link.

About this paper

Official Gujarat Technological University (GTU) examination paper for Process Equipment Design -I (Summer 2026, B.E. · Chemical Engineering, Sem 6). 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.

Download official PDF All Process Equipment Design -I Papers (1) →Report a typo or correction
ViewDownload PDF