Cc H1087 Pages: 2

Reg No.:_ Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
EIGHTH SEMESTER B.TECH DEGREE EXAMINATION, MAY 2019

Course Code: EE474
Course Name: ENERGY MANAGEMENT AND AUDITING

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each carries 5 marks. Marks
1 List down the general principles of energy management (5)
2 Explain any five energy management opportunities in lighting systems (5)
3 What is a boiler system? What are the major components of a boiler system? (5)
+ How capacity of an HVAC system is mentioned? What is meant by coefficient (5)

of performance?

5 What is meant by energy audit? Enumerate the differences between preliminary (5)
and detailed energy audits

6 What is meant by cogeneration and lists its advantages? (5)

7 What is meant by life cycle costing? List down the factors considered for finding (5)

the life cycle costing of an air conditioning system.

8 A project entails an investment for initial cost of installation and series of annual (5)
costs and/or cost savings throughout the life of project. Recommend a suitable
financial analysis technique and explain.

PART B
Answer any two full questions, each carries 10 marks.

9 Define Energy Management. Explain the various steps involved in energy (10)
management planning?

10 a) Enumerate the peak demand control methodologies used in energy management (5)
planning

b) Explain the types of losses in an electric motor. List down the various (5)
opportunities for energy saving in case of under-loaded motors

11 An energy audit was conducted in the draft fan motor of a boiler system. The (10)
motor is rated for 37 1۱۷۷,415۷, 72A, 0.88pf. Using electrical power analyser,
the operating values are found to be 410V, 50A, 0.73 pf
The energy audit team proposed to replace the existing motor by a 30kW energy

efficient eff3 motor with 90% efficiency.

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