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Course: Post Graduate Diploma Post Graduate Diploma Electrical Energy Management and Energy Audit

University/board: Alagappa University

DISTANCE EDUCATION

P.G.D.E.A & M. EXAMINATION, DECEMBER 2007.

ENERGY MANAGEMENT AND CONSERVATION TECHNIQUES

Time : Three hours Maximum : 100 marks

SECTION A (5 x 8 = 40 marks)

Answer any FIVE questions.

1.Discuss how thermal energy is managed in industries.

2.Explain the importance of conservation methods.

3.What are the management techniques used in electrical energy conservation?

4.List and explain the renewable energy sources adopted for energy conservation.

5.What are the applications that require the idea of illumination levels?

6.Discuss in brief the energy conservation process adopted in sugar mills.

7.Explain importance of the term energy index.

8.Describe the aspects of energy conservation in pollution control.

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SECTION B (4 x 15 = 60 marks)

Answer any FOUR questions.

9.Discuss in detail the importance of conservation measures used with renewable energies.

10.Explain the conservation methods adopted with waste heat recovery devices.

11.Explain in detail the conservation techniques adopted for electrical energy.

12.Enumerate the recent developments in electrical energy conservation.

13.With a schematic lay out discuss how biogas based cogeneration is practised in sugar mills.

14.Explain the importance of savings adopted using renewable energy devices with a case study.

15.What are the steps required to carry out the economic analysis of an energy conservation project?l

CERTIFICATE IN ENERGY TECHNOLOGY AND MANAGEMENT (CETM)

Term-End Examination

OEY-003 : Energy Management - Audit and Conservation

Time : 3 hoursMaximum Marks : 70

Note : Attempt any ten questions. All questions carry equal marks.

June 2011

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1. Describe the advantages of evaporative coolers as compared to air conditioner. How doyou decide the size of evaporative cooler needed for a room ? (7)

2. Discuss atleast four pressure measuring devices. 7

3. (a) A system takes 150 units of energy and converts only 120 units of energy into useful

work. What is the efficiency of the system ?

(b) An engine pumps up 1000 kg of water through a height of 10 m in 5 seconds. If the

efficiency of the engine is 60%, calculate the power of the engine in kilowatt. Take g =10ms -2. (2+5=7)

4. Define Energy Audit. Also discuss energy management with the help of suitableexamples. (7)

5. Explain in brief the energy conservation measures in different industrial processes. (7)

6. A house is fitted with 10 lamps, rated 100 W each, four fans each consuming 0.5 A, an

electric kettle of resistance 100 Ω and an electric iron of resistance 121 Ω If theenergy is supplied at 200 V and cost Rs. 3/- per kWh, calculate the bill for running theappliances for four hours in a day for the month of February 2012. (7)

7. Explain in brief the condensate recovery from boiler feed water. (7)

8. The energy audit data for a steel company for a month is : (7)Coal consumption = 82060 kg

Electricity consumption = 42060 kWh

Steel production = 600 tonne.Calorific value of coal = 5800 kCal/kg.Compute the specific energy consumption.

9. List out the guidelines for energy conservation of a chemical industry. (7)

10. There are two energy conservation measures as described below : (7)

Energy Conservation Measure I :

The equipment costs Rs. 18000/- and pays back Rs. 24000/- in two years.Energy Conservation Measure II :The equipment costs Rs. 12000/- and pay back Rs. 8000/- each year for two years.If the interest rate is 8%, determine the best alternative.

11. Describe in brief the need of awareness and training programmes for energymanagement in Rural areas.

12. "Animal power is a renewable energy source" - justify this statement with the help ofsuitable examples.

Note: The above courses are picked automatically by the website for indicative purpose only. However, students arerequested to check with the University for the similarity of the course or for any other information in regard to the course.

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