Q.1
14 Marks(a)
Define: Energy Audit, Designated Consumers, ESCOs
(b)
Discuss Sector wise Indian energy scenario.
(c)
What is CDM? Write a note on CDM Methodology and its project cycle with neat sketch.
Gujarat Technological UniversitySummer 2026 examination
GTU 3161919 Energy Conservation and Management Summer 2026 Question Paper & PDF
B.E. · Mechanical Engineering · Semester 6 · Subject code 3161919
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 10:30 AM – 1:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
List the missions under the National Action Plan for the climate change.
(b)
Explain Blow down, its necessity and its advantages.
(c)
Enlist the schemes of BEE under the Energy Conservation act 2001 and discuss any two schemes in detail.
OR
(c)
Discuss the salient features of Energy Conservation Act - 2001
Q.3
14 Marks(a)
List out the objectives of energy management.
(b)
Explain energy conservation and its importance by giving an example.
(c)
Discuss the steps for detailed energy audit.
OR
(a)
Define the plant energy performance, Efficiency of the boiler, Heat Exchanger effectiveness.
(b)
Enlist the energy audit instruments and explain the use of combustion gas analyzer.
(c)
Discuss the Energy conservation opportunities for Boiler in detail.
Q.4
14 Marks(a)
Define Pay back period, Return on investment, Net present Value
(b)
Discuss any four key elements of monitoring and targeting.
(c)
Using the net present value analysis technique, evaluate the financial merits of the two proposed projects shown in the table below: The annual discount rate is 8.5% for each project. Project 1 Project Capital cost (Rs.) 25000 25000 Year Net Annual Savings (Rs.) Net Annual Savings (Rs.) 1 +7000 +6500 2 +6000 +7500 3 +6500 +7000 4 +6500 +7000 5 +5500 +5500 6 +7500 +5500 Total Savings at the end of the 6th year +39000 +39000 Also state the advantages of the Net present value method used.
OR
(a)
What is EMIS? State its advantages.
(b)
Write a note on Cash flows.
(c)
The energy production data (for Jan-April, 2015) of an industry follows a relationship: Calculated Energy consumption = 0.5P+220. A heat recovery system was installed at the end of April 2015, and further data was gathered up to December, 2015. Using CUSUM technique, calculate energy savings in terms of ton of oil equivalent (toe) and the reduction in specific energy consumption achieved with the installation of waste heat recovery system. This plant data is given in the table below: 2015 - Month Actual Energy Consumption, toe/month Actual Production, Ton/month May 530 620 June 540 670 July 590 760 Aug 605 820 Sept 670 940 Oct 582 750 Nov 540 610 Dec 540 670
Q.5
14 Marks(a)
Explain Deaeration treatment for the boiler water.
(b)
What is steam traps? State its functions and benefits of providing steam traps in a steam system.
(c)
Discuss various losses in the fuel fired furnaces in detail.
OR
(a)
What is topping cycle and bottoming cycles of cogeneration.
(b)
Write a short note on economic thickness of insulation and factors to be considered while calculation of the same.
(c)
State various types of waste heat recovery devices. Explain working of any one waste heat recovery device with neat sketches.
Other Semester 6 subjects
BE Mechanical
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About this paper
Official Gujarat Technological University (GTU) examination paper for Energy Conservation and Management (Summer 2026, B.E. · Mechanical 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.