GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VII (Old) EXAMINATION — WINTER 2019
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Subject Code: 171907 Date: 23/11/2019Subject Name: Energy Conservation And Management
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
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2. Make suitable assumptions wherever necessary.3. Figures to the right indicate full marks.
Q.1 (a) Define the following: 1. Time of day tariff 2. Power factor 3. Resistive load 4. Sensible heat gain 5. Calorific value 6. Relative humidity 7. Maximum demand [07]
(b) Write about special features of Energy conservation act 2001. [07]
Q.2 (a) Write sample energy audit report. [07]
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(b) What is Indian Energy scenario and what are the latest developments in this field? [07]OR
(b) Write a note on different phases of energy audit. [07]
Q.3 (a) Define following terms: 1.Return on investment 2.Life cycle cost 3.Time value of money 4. Depreciation [07]
(b) List major elements of monitoring and targeting and explain any four in detail [07]
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OR
Q.3 (a) What is star rating and labeling program? Which appliances are covered under this program? [07]
(b) What is bench marking and how is it helpful in conducting energy audit? [07]
Q.4 (a) Explain indirect method of efficiency evaluation for furnace [07]
(b) Write a note on waste heat recovery steam generator [07]
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OR
Q.4 (a) How to select insulation? How to decide thickness of insulation? [07]
(b) Discuss any four methods to increase energy efficiency of Boiler. [07]
Q.5 (a) Classify different types of waste heat recovery methods and explain any one of them with necessary diagram [07]
(b) Explain proper working practice for pumps used in industry. [07]
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OR
Q.5 (a) Give suggestions'to reduce energy consumption in HVAC systems. [07]
(b) What is cogeneration? When its use is viable? [07]
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