Reg No.:

Max. Marks: 100

Yn ಭ್ರ + ~ ‏تم‎

10

11

12
13

14

a)
b)
a)

b)

a)
b)

04000EE474052005

Pages: 2

Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Eighth semester B.Tech degree examinations, September 2020

Course Code: EE474
Course Name: ENERGY MANAGEMENT AND AUDITING

PARTA
Answer all questions, each carries 5 marks.

Define energy management. Discuss the significance of electrical load
management.
Enumerate the features of energy efficient motors.
Illustrate blow down process in boilers.
Comment on waste heat recovery devices.
Discuss on any two energy audit instruments.
Mention the principle of cogeneration system.
Discuss net present value (NPV) method of evaluating economic feasibility of a
project.
Explain cash flow diagram.

PART ‏تا‎

Answer any two full questions, each carries 10 marks.

Explain various peak demand control methodologies.
Mention the significance of optimal load scheduling
Enlist various energy saving opportunities in electrolytic process

A 50kW induction motor with 86 % present full load efficiency is being
considered for replacement by a 89 % efficiency motor. What will be the savings
in energy if the motor works for 6000 hours per year and cost of energy is
Rs. 4.50 per kWh?

Discuss any five energy saving methods used in lighting system.

PART C
Answer any two full questions, each carries 10 marks.
Enumerate various energy saving opportunities in steam distribution system.
Discuss any five energy saving methods in furnaces.
Mention the different types and benefits of waste heat recovery system.

Define COP of an HVAC system. With the help of a neat schematic explain

vapour compression refrigeration system.

Page lof 2

Duration: 3 Hours

Marks

(5)

(5)
(5)
(5)
(5)
(5)
(5)

(5)

(10)
(5)
(5)
(5)

(5)

(10)
(5)
(5)

(10)