GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-VII (NEW) EXAMINATION - WINTER 2020
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Subject Code:2170911
Subject Name:Energy Conservation and Audit
Time:10:30 AM TO 12:30 PM
Instructions:
Attempt any FOUR questions out of EIGHT questions.
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1. Make suitable assumptions wherever necessary.
2. Figures to the right indicate full marks.
Q.1 (a) Explain General principles of Energy management. 03
(b) Write down Guidelines for writing energy audit report. 04
(c) Enlist Instruments for Audit and Monitoring Energy and Energy Savings. Briefly describe each. 07
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Q.2 (a) Define: Latent Heat of Fusion, Contract Demand and Load Factor. 03
(b) Discuss Following: 04
- Commercial and Noncommercial energy
- Renewable and Nonrenewable energy
(c) Explain importance of power factor improvement and methods to implement it. 07
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Q.3 (a) What is Indian Boiler regulation? 03
(b) Describe present scenario for energy consumption of India. 04
(c) Explain various methods of energy conservation in house. 07
Q.4 (a) Explain FRC boiler in detailed. 03
(b) List down energy conservation opportunities in refrigeration system. 04
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(c) Explain the concept of co-generation and its applications. 07
Q.5 (a) Explain soft starter in brief. 03
(b) Explain in detail various methods of Energy Conservation in Compressors. 04
(c) What is demand side management? Explain in brief. 07
Q.6 (a) How do you assess the performance of Fans? Explain. 03
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(b) Explain technical aspects of energy efficient motors. 04
(c) Explain in brief. Discuss the effect of following parameters on the performance of Boiler 07
- Excess air
- Blow down
- Waste heat utilization
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Q.7 (a) FirstRanker.com 03
(b) How to save energy by substituting existing fuel? 04
(c) Case studies of implemented energy cost optimization projects in electrical utilities as well as thermal utilities. 07
Q.8 (a) Difference between fans, blowers and compressors? 03
(b) Write energy saving opportunities in cooling towers. 04
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(c) Explain Type of Pumps, Also Give Detail parallel and series operating pump performance. 07
Date:19/01/2021
Total Marks: 56
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