Q.1
14 Marks(a)
Describe the environmental issues factors in process design.
(b)
Mention steps in Product and Process Design.
(c)
Write a short note on heuristics for designing separation processes.
Gujarat Technological UniversitySummer 2025 examination
GTU 2170507 Computer Aided Process Synthesis Summer 2025 Question Paper & PDF
B.E. · Chemical Engineering · Semester 7 · Subject code 2170507
- 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.2
14 Marks(a)
Write importance of CAPS in chemical engineering
(b)
Explain creating and assessing primitive problems for product and process design.
(c)
Discuss construction of attainable region.
OR
(c)
Explain inherent concept of heat integration. Also discuss the pinch design approach for minimum utility requirements.
Q.3
14 Marks(a)
Compare flowshop plant and jobshop plant.
(b)
Write a short note on role of computers in product and process design.
(c)
Explain the positioning of heat engine with reference to pinch temperature.
OR
(a)
Calculate the minimum number of heat exchangers for heat exchanger network involving three different streams and two distinct utility sources. All the streams in process are connected directly or indirectly by heat exchangers.
(b)
Describe the use of grand composite curve to select utility.
(c)
Determine minimum utility target for following data using temperature interval method. (ΔTmin = 10 K) Stream Tin (K) Tout (K) mCp (kW/K) H1 650 370 10 H2 590 370 20 C1 410 650 15 C2 353 500
Q.4
14 Marks(a)
Discuss the engineering ethics briefly.
(b)
With a neat sketch explain heat pumping and reboiler flashing.
(c)
Use the marginal vapor rate method to determine a sequence of separation of light hydrocarbon. Give rank to various sequences. Separation MV (kmol/hr) Separation MV (kmol/hr) A/B 0 B/CD 227 A/BC 163 AB/CD 435 A/BCD 340 C/D 0 B/C 0 BC/D 385 AB/C 231 ABC/D 613
OR
(a)
Calculate number of possible sequences for separation of 4 numbers of products by ordinary distillation column and draw direct and indirect sequence only.
(b)
Explain transshipment model for stream matching.
(c)
Explain heat integration in distillation column using multiple effect distillation.
Q.5
14 Marks(a)
What is stream splitting? Explain how stream splitting can help in getting better design.
(b)
Compare Various transfer Policies in Batch Plant.
(c)
Given the processing time for two products A and B, determine makespan and cycle-time for manufacturing one batch of A and one batch of B using
i)Zero wait
policy,
ii)No intermediate storage policy and
iii)Unlimited intermediate storage
policy.
Product Processing time (hr)
Stage 1 Stage 2 Stage 3
A 6 4 3
B 3 2 2
Zero Cleanup Time
OR
(a)
List configurations for ternary distillation.
(b)
Discuss the concept of multi effect distillation as possibility of energy integration.
(c)
Explain in brief the purpose of using Gantt Chart. Draw a Gantt chart for the following processing times in the sequence of AAABBB (Single Campaigns) and ABABAB (Multi Campaigns).
More Computer Aided Process Synthesis papers
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About this paper
Official Gujarat Technological University (GTU) examination paper for Computer Aided Process Synthesis (Summer 2025, 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.