Sunday, March 24, 2024

EEE 4030620 - ENERGY CONSERVATION AND AUDIT QUESTION BANK

 


 

ENERGY CONSERVATION AND AUDIT

IMPORTANT 3 MARKS AND 14 MARKS

 

UNIT 1 – 3 MARKS

1.     State any three benefits of star labelling

What is primary energy?

3.     What is secondary energy?

4.     What is MEDA? and state any three roles of MEDA?

5.     What is TEDA? state the roles of TEDA.

6.     State any three roles of BEE?

 

UNIT 2 – 3 MARKS

1.     Rewinding of motor:

2.     State any three-energy conservation by periodical maintenance in induction

3.     What is the use of IPFC?

4.     State the need of energy conservation in induction motor?

5.     State three advantages of energy efficient motor.

6.     What are the energy conservation techniques in transformer?

 

UNIT 3 – 3 MARKS

 

1.   What are technical losses?

2.   State any three causes for technical losses.

3.       Electronic Regulators

4.   Remedies adopted for commercial losses.

5.       State any three energy conservation techniques in fans and electronic regulators.

6.   What are commercial losses?

7.   List the energy conservation equipments used in electrical installation?

 

 

UNIT 4 – 3 MARKS

 

1.  State the need of energy audit.

2.  Write any three instruments used in energy audit procedure.

3.  State any three objectives of energy audit.

4.   What are the instruments used for measuring light, pressure and temperature?

5.  Define Sankey diagram?

6.  What are the instruments used for the velocity and flow rate measurements?

7.   What are the instruments used for measuring voltage, current, power, energy, and power factor?

 

UNIT 5- PART A – 3 MARKS

1)  Define Co-generation.

2)       What is Peak-Off-Day Tariff?

3)       What is power factor tariff?

4)       What is maximum demand tariff?

5)       State any three guidelines for writing energy audit report ?

6)  Types of Tariff

7)  Draw the Topping cycle of Co generation system

 

 

 

 

 

 

 

 

 

 

 

 

UNIT -1 –PART B – 14 MARKS

 

1.     ENERGY CONSERVATION APPROACHES:

2.     SAFETY RULES FOR WORKING WITH  ELECTRICAL EQUIPMENT:

3.     ENERGY CONSERVATION TECHNIQUES:

4.     PRINCIPLE OF ENERGY CONSERVATION METHODS:

 

UNIT – 2 – PART B - 14 MARKS

1.     LOAD SHARING ON PARALLEL OPERATION USED TO CONSERVE ENERGY OF TRANSFORMERS

2.     EXPLAIN THE FOLLOWING ENERGY CONSERVATION METHODS

                                                             i.      RE WINDING OF MOTOR

                                                           ii.      ENERGY EFFICIENT MOTOR

3.     ENERGY CONSERVATION BY REPLACEMENT OF ENERGY EFFICIENT TRANSFORMERS

4.     AUTOMATIC POWER FACTOR CONTROLLER ( APFC)

5.     ENERGY CONSERVATION IN INDUCTION MOTOR:

6.     ENERGY CONSERVATION IN TRANSFORMER:

 

UNIT – 3 – PART B - 14 MARKS

1.     OPTIMIZING DISTRIBUTION VOLTAGE TO REDUSE TECHNICAL LOSSES

2.     EXPLAIN HOW THE TECHNICAL LOSS ARE REDUCED BY

(i)                Controlling I2 R loss

(ii)             Balancing phase currents

3.     MAXIMUM DEMAND CONTROLLER

4.     ENERGY CONSERVATION TECHNIQUUES USED IN FANS AND REGULATORS

5.     AGGREGATED TECHNICAL AND COMMERCIAL LOSSES ( ATC ):

 

 

UNIT – 4 – PART B - 14 MARKS

 

1.     BASIC MEASUREMENTS IN ENERGY AUDIT

2.     EXPLAIN HOW THE ENERGY AUDIT IS CARRIED OUT IN

 ( i ) HVAC SYSTEM (ii ) WATER HEATING SYSTEM

3.     EXPLAIN ENERGY FLOW DIAGRAM ( SANKEY DIAGRAM )

4.     EXPLAIN INDUSTRIAL AUDIT OPPORTUNITIES

 

 

UNIT – 5 – PART B – 14 MARKS

 

1.     ENERGY AUDIT REPORT FORMAT

2.     BOTTOMING CYCLE:

3.     WRITE THE GUIDELINES FOR WRITING ENERGY AUDIT REPORT

4.     WHAT ARE APPLICATIONS OF TARRIF SYSTEM TO REDUCE ENERGY BILL?

5.      WRITE DOWN THE DIFFERENT TYPES OF CO GENERATIONS

 

 

 

 

 

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Extra three marks


1.guidelines to write the energy audit report

2.air quality analysis

3.thermal loss

4.simple buyback period

5.maximum demand traiff

6.load factor traiff



ECA IMPORTANT 14 MARKS

Unit 5


1.topping and bottoming(basis on sequence)

2.basis on technology

3.factors governing the selection of cogeneration

4.application of traiff system to reduce the energy bill



Unit 4


1.energy audit instruments

2.types of energy audit or procedure of energy audit(walk through and detailed)

3.energy audit in HVAC system


Unit 3


1.energy conservation eqiupments

i)Maximum demand controller

ii) kvar controller

iii) APFC and IPFC


2.Commerical loss

    Causes and remedies


3.technical loss

(Methods to reduce technical loss)

i)controlling I²R loss 

ii) balancing phase current

iii) optimising voltage level

iv) reactive power controller


Unit 2


1.1.energy conservation eqiupments

i)soft starter

ii)VFD

iii) star/delta starter

iv) APFC and IPFC


2.energy conservation techniques in transformer


Unit I


1.star labeling

2.BEE

3.MEDA &TEDA

4.energy conservation in household,industries,community level

5.energy conservation techniques and principle of energy conservation methods

6.safe working in electrical equipments


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