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Energy Conservation And Management Question Paper
Energy Conservation And Management
Course:Bachelor Of Science In Environmental Conservation
Institution: Kenyatta University question papers
Exam Year:2009
KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2009/2010
FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE (ENERGY ENGINEERING)
SET 534:
ENERGY CONSERVATION AND MANAGEMENT
DATE: Tuesday, 22nd December, 2009
TIME: 11.00 a.m. – 1.00 p.m.
------------------------------------------------------------------------------------------------------------
INSTRUCTIONS:
Attempt any THREE questions. All questions carry equal marks.
Question 1
a)
Briefly discuss the basic concepts of a national economy with specific reference
to some particular aspects of energy economics and gross national product (GNP).
(8 marks)
b)
i)
Define and distinguish the terminologies “Energy Conservation” and
“Energy Savings”.
ii)
Which kind of actions/means should we adopt to ensure efficient
conservation of energy resources?
(6 marks)
c)
Planning leads to proper management practice; with an aid of illustrative block
diagram explain the variables, parameters and other determinants for energy
planning.
(11
marks)
Page 1 of 3
Question 2
a)
Explain how a mathematical expression derived for a decision making of a
particular energy management system within a micro-economic level. Also
discuss some of the side factors which may play important role in decision
making but may not be incorporated in the expression.
(9 marks)
b)
Within a national economy, energy policy planning is aimed at a guarantee of the
energy supply. List and discuss three major elements involved or which are
commonly evaluated in energy policy planning.
(9 marks)
c)
There are popular statements which state that “Energy storage is often mentioned
when stressing the point of energy savings. Costs have nevertheless to be
evaluated. A general conclusion on the economic advantages of storage systems
cannot be drawn.” Discuss these statements from your own point of view.
(7 marks)
Question 3
a)
Energy-dependent countries are becoming increasingly aware of the importance
of conversion, conservation and development of new energy sources; hence
energy sources in the world are exploited with the primary consideration given to
three “E’s” by engineers. Explain these three “E’s” which are becoming popular
in the engineering field and their proper
balancing.
(6
marks)
b)
Energy saving measures may be in terms fuel substitution, waste-heat recovery
and process modification. Explain what is involved in each of these measures.
(6 marks)
c)
Use an iterative block diagram to discuss what a general management system
entails with specific reference to energy management.
(8 marks)
d)
Discuss the need and approaches to energy marketing and investment.
(5 marks)
Page 2 of 3
Question 4
a)
List and explain at-least four major determinants of energy supply and demand
planning which should be considered whether an investigation is to be supply – or
demand-oriented for a national energy policy in particular.
(8 marks)
b)
How are the following approaches carried out in energy assessment:
i)
Energy surveying
ii)
Energy auditing
iii)
Conservation opportunities
(6 marks)
c)
Illustrate the energy accounting of any given process or system.
(5 marks)
d)
Explain what you understand by energy storage systems and three objectives
energy storage is geared to fulfill.
(6 marks)
Question 5
a)
In your understanding illustrate how you as an engineer in-charge in an energy
generating institution would go about planning for the power distribution to a
local community. Your discussion should focus on such factors as the energy
reserve/source, handling, upgrading, storage, preparation, etc.
(13 marks)
b)
Explain the following terminologies in-terms of Energy Economics:
i)
Operational costs
ii)
Capital costs
(4 marks)
c)
Give an illustrative flow block-diagram which may depict energy policy, energy
economics, energy forms and energy balance. Give a brief summary of the
diagram.
(8 marks)
Page 3 of 3
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