GTU Energy Conservation And Management - May 2016 Exam Question Paper

GTU Mechanical Engineering (Semester 7)
Energy Conservation And Management
May 2016

Total marks: --
Total time: --

INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1 (a) Discuss present energy consumption scenario of India.

7 M

1 (b) What is energy security and what is Indian government strategy for future to meet energy security.

7 M

2 (a) Define the following terms: (1) Dew Point temperature (2) HCV (3) LCV (4) Contract Demand (5) Time of Day tariff (6) Power Factor (7) Inductive load

7 M

Solve any one question from Q2(b) & Q2(c)

2 (b) Discuss 'Post Audit' phase of Energy Audit methodology.

7 M

2 (c) Give the format of Energy audit report.

7 M

Solve any two question from Q3(a), Q3(b) & Q3(c), Q3(d)

3 (a) Define following financial terms: (1) Cash flow (2) time value of money (3) capital cost (4) depreciation

7 M

3 (b) Which tool is used to represent difference between standard consumption and actual consumption? Explain with sample graph.

7 M

3 (c) How to save energy by substituting existing fuel? Give some examples.

7 M

3 (d) Explain Indirect method of Energy Efficiency calculation for Furnace.

7 M

Solve any two question from Q4(a), Q4(b) & Q4(c), Q4(d)

4 (a) How to save energy in Refrigeration and Air Conditioning plant?

7 M

4 (b) Discuss the effect of following parameters on the performance of Boiler
(1) Excess air
(2) Blow down
(3) Waste heat utilization

7 M

4 (c) How to save energy in Compressed air delivery system as well as compressor?

7 M

4 (d) How to make lighting system of your college campus more efficient?

7 M

Solve any two question from Q5(a), Q5(b) & Q5(c), Q5(d)

5 (a) Make a list of various energy saving opportunities in Pump.

7 M

5 (b) For an existing plant a pump replacement is planned. A pump is working for 4400 hours per year and delivers 8000 m³/hr of water at 40 m height. Two pumps are finalized for the same. Pump A is 76% efficient and pump B is 82% efficient with additional cost of 1lac rupees. Select the pump. Power consumption of a pump is given by following formula. \[ \text{Power consumption }= \left ( \dfrac {p\times g \times Q \times H}{3600 \times 10^3} \right ) \]

7 M

5 (c) Give examples of waste heat utilization where high temperature waste heat is Available.

7 M

5 (d) Explain topping cycle co-generation plant with sketch.

7 M

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