GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-VIII (NEW) EXAMINATION — WINTER 2020
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Subject Code:2180910
Subject Name:Energy Conservation and Audit
Date:19/01/2021
Time:02:00 PM TO 04:00 PM
Total Marks: 56
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Instructions:
- Attempt any FOUR questions out of EIGHT questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1 (a) Explain the need of energy audit. 03
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(b) Write a technical note on : Energy Conservation Act. 04
(c) Write a technical note on : Energy efficient motors. 07
Q.2 (a) Explain the sample questionnaire for energy audit. 03
(b) What is energy management? Explain its objectives. 04
(c) Write a technical note on: T&D losses. 07
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Q.3 (a) Explain factors for selection of a steam boiler. 03
(b) Explain waste heat recovery options in thermal systems. 04
(c) Explain detailed classification of energy audit. 07
Q.4 (a) Explain the limitations of energy optimization projects. 03
(b) Explain any two instruments used for energy audit in detail. 04
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(c) Explain advances in boiler technologies. 07
Q.5 (a) Explain industrial application of pumps. 03
(b) Explain any four steps for energy saving in air compressors. 04
(c) Write a technical note on : Demand side management (DSM). 07
Q.6 (a) Explain need of fans and blowers. 03
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(b) Write a technical note on Requirement of load management. 04
(c) Explain energy saving in cooling towers. 07
Q.7 (a) Explain series operating pump performance. 03
(b) Explain steps for energy saving in blowers. 04
(c) Write a technical note on : Thermic fluid heaters. 07
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Q.8 (a) Explain concept of economic thickness of insulators. 03
(b) Explain the need of water treatment in boilers. 04
(c) Explain a case study of energy audit in any industry. 07
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