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H192085 Pages: 2

to unity by installing capacitor banks. Find the annual reduction in demand
component charges and energy component charges? Find the kVAR required to
improve the power factor from 0.95 to unity?
Define Energy Management. What are the objectives of energy management?
Explain any five energy management opportunities in lighting systems
What are the energy management opportunities in electrolytic processes?
What is meant by loading of motor? Why does the efficiency of motor reduce
when it operates at lower loading? List down any 2 steps to improve the
operating efficiency of under-loaded motors.
PART C

Answer any two full questions, each carries 10 marks.
What is meant by internal and external feed water treatment in boilers?
What is meant by steam traps? Explain the operation of thermostatic steam trap
Explain any five energy conservation measures adopted in HVAC system
How capacity of an HVAC system is mentioned? What is meant by coefficient
of performance?
Explain how setting a lower evaporator temperature helps in reducing the power
consumption of an air conditioning system? List down any three energy saving
measures in domestic air conditioning system

PART 0

Answer any two full questions, each carries 10 marks.
What are the different types of energy audit? Explain the steps involved in
detailed energy audit.
List down the major energy audits instruments and its use.
Differentiate between simple payback period and net present value method
What is meant by average rate of return method of financial analysis and explain

its advantages. Calculate the ARR of a project whose details are given below.

Year | Investment value | Profit after tax

1. 80000 18000
90000 22000
65000 24000

60000 28000

55000 30000
50000 32000

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