1. DESIGN AND CONSTRUCTION OF AN
MG THANT ZIN WIN
COOLING SYSTEM
DESIGN AND CONSTRUCTION OF AN
INDUCTION FURNACE
(COOLING SYSTEM)
Presented by
MG THANT ZIN WIN
Roll No: Ph.D-M-7
Supervisors:
Dr Mi Sandar Mon
Daw Khin War Oo
Participants:
Mg Thant Zin Win (Mechanical)
Mg Lin Naing Tun (EC)
Ma Cho Cho Ei (EC)
5th Integrated Seminar

2. FACTORS AFFECTING ON
COOLING TOWER PERFORMANCE
AND
INTRODUCTION TO OUTLINES OF THESIS

3. Factors Affecting Cooling Tower Performance
Wet-Bulb Temperature
Dry-Bulb Temperature
Heat Load
GPM, Range and Approach
Interference
Tower Sitting and Orientation
Recirculation

4. Cooling Tower Performance Curve
Fig 1 – A Sample of Typical Performance Curve

5. Wet-Bulb Temperature
The temperature (WB) of the entering or ambient air adjacent to the cooling tower.
Fig 2 – Sling Psychrometer
Fig 3 – Daily Variation of WB Temperature

6. Fig 4 – Annual Variation of
WB Temperature
Fig 5 – Typical WB
Temperature
Duration Curve

7. Dry-Bulb and/or Relative Humidity
The temperature (DB) of the entering or ambient air adjacent to the cooling tower.
The ratio of the mole fraction of water vapor present in the air to the mole fraction of water vapor present in saturated air at the same temperature and barometric pressure.

8. Heat Load
Total heat to be removed from the circulating water by the cooling tower per unit time.
where, gpm = Circulating water rate in gallons per minute
8.33 = Pounds per gallon of water
R = Range

9. GPM, Range and Approach Fig 7 – Effect of chosen Approach on
Tower Size at fixed Heat Load, GPM,
and WB Temperature
Fig 6 – Diagram showing of Cooling
Range and Approach

10. Interference
Fig 8 – Interference Process

11. Tower Sitting and Orientation
It is the responsibility of the owner/ specifier.
Air Restrictions
Recirculation
Interference
Effect on Site Piping

12. Recirculation Undesirable Situation Control – Tower Shape
Orientation with Prevailing Wind
Air Discharge Velocity
Fan Cylinder Height and Spacing
Fig 9 – Recirculation Process

13. Fig 10 – Longitudinal Wind Direction
concentrates Separate Stack
Plumes into one of High Buoyancy
Fig 11 – Effect of Wind Velocity Potential
of Round and Rectangular Tower

14. Fig 12 – Comparative Recirculation Potential
of Round and Rectangular Tower
Fig 13 – Recirculation Potential in
a Forced-draft Cooling Tower

15. Introduction to Outlines of Thesis
CHAPTER 1 – INTRODUCTION
1.1. Problem Outline
1.2. Objective of the Present Study
1.3. Layout of Thesis
CHAPTER 2 – LITERATURE REVIEW
2.1. Electric Melting Furnaces
Arc Furnace
Induction Furnace
Coreless Induction Furnace
Core or Channel Induction Furnace
Resistance Furnace
2.2. Operating Principle of Coreless Induction Furnace
2.3. Features of Induction Melting Furnace
2.4. Block Diagram showing the Water Cooling System
2.5. Energy Requirements and Coil Cooling Energy Losses

16. 2.6. Water Cooling System – Important Role in Coreless Induction Furnace
Water Requirements
Effects of Water Quality
Water Purification/ Maintenance
Filtration
Effects of Impurities
Emergency Water Supply and Cooling System
2.7. Cooling Pond System
2.8. Spray Pond System
2.9. Evaporative Cooling Tower-open Circuit System
2.10. Fan-radiator Closed-circuit System
2.11. Water/water Heat-Exchanger Dual System
2.12. Dual System with Closed-circuit Cooling Tower
2.13. Selection of Cooling System
CHAPTER 3 – COOLING POND – CURRENT STATUS OF RESEARCH
AND PROJECT
CHAPTER 4 – DESIGN AND CALCULATION OF COOLING POND SYSTEM
CHAPTER 5 – CLOSED RECIRCULATING SYSTEM WITH COOLING TOWER
CHAPTER 6 – RESULT, DISCUSSION, AND CONCLUSION

17. THANK YOU