GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VII (OLD) EXAMINATION — WINTER 2018
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Subject Code: 171907 Date: 15/11/2018
Subject Name: Energy Conservation And Management
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| Q.1 (a) | Which are the various primary and secondary energy sources? Differentiate between commercial and non-commercial energy. | 07 |
| Q.1 (b) | Explain various basic electrical parameters to calculate electricity tariff for an industry. | 07 |
| Q.2 (a) | Explain how a CUSUM chart is drawn with an example. | 07 |
| Q.2 (b) | Define energy management. Which are the types of energy audit? Explain detailed energy audit. | 07 |
| OR | ||
| Q.2 (b) | Explain briefly the essential elements of monitoring and targeting system. | 07 |
| Q.3 (a) | Define the following terms: (1) Humidity (i1) High grade energy (iii) Power factor (iv) Latent heat of fusion (v) Dew point (vi) Calorific value (vii) Load factor. | 07 |
| Q.3 (b) | Explain efficiency measurement methods of boiler in brief. | 07 |
| OR | ||
| Q.3 (b) | Define the terms: SPP, ROL, NPV, IRR, Cash flow, Risk analysis & Time value of money. | 07 |
| Q.4 (a) | List the factors that affect energy efficiency in air compressors. | 07 |
| Q.4 (b) | Discuss the effect of climate change on environment in detail due to effect of various energy uses. | 07 |
| Q.5 (a) | What do you mean by cogeneration? Classify cogeneration system & Explain bottoming cycle. | 07 |
| OR | ||
| Q.5 (a) | What is the role of an ESCO? Discuss it in detail. | 07 |
| Q.5 (b) | Classify heat recovery systems and explain any one in detail. | 07 |
| OR | ||
| Q.4 (a) | Explain energy pricing in India. | 07 |
| Q.4 (b) | Explain the operating principle of a waste heat recovery boiler with examples. | 07 |
| OR | ||
| Q.5 (a) | Name any four main provisions of the EC act, 2001 as applicable to the designated consumers. | 07 |
| Q.5 (b) | Give various tips for energy savings in thermal utility devices like compressor, pump and refrigeration system. | 07 |
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