EX-603-B Energy Conservation and Management - May 2024 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aWhat do you mean by Energy Conservation? Also explain in detail about Energy Audit.
   How to answer

   • Define energy conservation and its objectives
   • Define energy audit, its types and objectives
   • Steps / methodology of detailed energy audit
   • Benefits and reporting of audit
2. 7 Marks
   bWith the help of an example explain the importance of energy policy.
   How to answer

   • Define energy policy and its need
   • Key elements of an energy policy
   • Illustrative example of organization / industry
   • Importance / outcomes of policy
3. 7 Marks
   aDiscuss about Material load energy balance diagram.
   How to answer

   • Define material and energy balance concept
   • Components of material load energy balance diagram
   • Steps to construct the diagram
   • Use in identifying losses and efficiency
4. 7 Marks
   bDiscuss about Energy auditing instruments.
   How to answer

   • Need for energy auditing instruments
   • List of common instruments
   • Function and application of each instrument
   • Role in data collection for audit
5. 7 Marks
   aWhat are waste heat recovery boilers? Explain the need and benefits of these boilers.
   How to answer

   • Define waste heat recovery boiler and working principle
   • Need for waste heat recovery
   • Types and applications
   • Benefits: fuel saving, emission reduction, economics
6. 7 Marks
   bDiscuss about primary energy resources.
   How to answer

   • Define primary energy resources
   • Classification: renewable and non-renewable
   • Examples: coal, oil, gas, solar, hydro etc.
   • Importance in energy supply
7. 7 Marks
   aWhat is DSM? What are the differences between different DSM techniques?
   How to answer

   • Define DSM and its objectives
   • List DSM techniques: peak clipping, valley filling, load shifting etc.
   • Comparison of techniques with load curve sketches
   • Benefits to utility and consumer
8. 7 Marks
   bWhat is the purpose of predictive and preventive maintenance?
   How to answer

   • Define predictive and preventive maintenance
   • Purpose and objectives of each
   • Difference and activities involved
   • Impact on energy efficiency and reliability
9. 7 Marks
   aHow power factor can be improved in power system?
   How to answer

   • Causes of low power factor
   • Methods: capacitors, synchronous condensers, etc.
   • Location and sizing of correction equipment
   • Benefits: loss reduction, voltage improvement
10. 7 Marks
    bExplain energy efficient motors and their importance.
    How to answer

    • Define energy efficient motors and construction features
    • Difference from standard motors
    • Efficiency and loss aspects
    • Importance: energy saving and payback
11. 7 Marks
    aWhy there is always loss of energy in material flow? Explain.
    How to answer

    • Concept of material flow and associated energy
    • Sources of losses: friction, heat, irreversibility
    • Thermodynamic reasoning for unavoidable losses
    • Ways to minimize losses
12. 7 Marks
    bExplain payback period method of evaluation of a project.
    How to answer

    • Define payback period and its formula
    • Steps to evaluate a project using payback
    • Merits and limitations
    • Illustrative calculation approach
13. 7 Marks
    aExplain energy conservation measure for a cement industry.
    How to answer

    • Energy use pattern in cement industry
    • Major conservation measures in kiln, grinding, waste heat
    • Process optimization and efficient equipment
    • Expected savings and benefits
14. 7 Marks
    bExplain "co-generation" and its benefits.
    How to answer

    • Define co-generation / combined heat and power
    • Principle and types of co-generation
    • Efficiency advantage over separate generation
    • Benefits: fuel saving, economics, environment
15. 14 Marks
    Write short notes on any two of the following:

    1. i)Energy efficient housekeeping
    2. ii)Second law of thermodynamics
    3. iii)Variable speed drive
    How to answer

    • Brief definition and scope of each selected topic
    • Key principles / working
    • Applications in energy conservation
    • Advantages / significance