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1. GOVERMENT ENGINEERING COLLEGE PALAKKAD DEPARTMENT OF MECHANICAL ENGINEERING D ESIGN & FABRICATION OF VORTEX TUBE REFRIGERATION SYSTEM Guided by, Prof. Manoj P J Associate Professor Department of Mechanical Engineering AKHIL M PKD21ME010 ANANDU KRISHNAN V P PKD21ME019 SREEJITH S PKD21ME058 SUDARSAN R PKD21ME060 10/6/2024 1

2. INTRODUCTION No Moving parts Compact and Simple Design Energy-Efficient Spot Cooling Versatile Applications A Simple Mechanical Device That Separates Compressed Air Into Hot And Cold Streams VORTEX TUBE IMPORTANCE 10/6/2024 2

3. OBJECTIVES Study of Vortex Tube Analyze performance characteristics Optimize the design for maximum cooling efficiency Fabricate a prototype 10/6/2024 3

4. METHODOLOGY Literature of research Paper Analysis of Operational Parameters Conceptual Design Designing Analyzing Fabrication 10/6/2024 4

5. WORKING Pressurized gas enters the tube tangentially through a nozzle The gas rotates , creating a vortex due to conversion of angular momentum The vortex creates two regions ; -inner vortex (hot) :high temperature , low velocity gas -outer vortex (cold) :low temperature , high velocity gas STEP BY STEP PROCESS 10/6/2024 5

6. 4. Temperature separation occurs due to : Conservation Of Energy Centrifugal Force  Heat Transfer 5. Hot and cold streams exit through separate nozzle    10/6/2024 6

7. Swirl chamber : creates vortex. Vortex tube : separates hot and cold streams. Hot end : exhaust hot gas Cold end : exhaust cold gas Nozzle Key components 10/6/2024 7

8. Spot cooling Electronic device cooling  Dehumidification Applications Conservation of energy Conservation of angular momentum PRINCIPLES 10/6/2024 8

9. ANALYSIS OF VORTEX TUBE Basic equations : Conservation of mass : in = cold + hot Energy balance : in  h in = ( cold h cold ) + ( hot h hot ) Temperature difference : T = T hot – T cold Efficiency= Reynolds Number ,R e = Vortex tube Length and diameter   Mathematical model : 10/6/2024 9

10. PARAMETERS Inlet air pressure Nozzle geometry Mass flow Rate L/D ratio 10/6/2024 10

11. LITERATURE REVIEW Performance factors : efficiency depends on parameters like inlet pressure , nozzle shape , and tube length Thermal separation : the vortex tube separates hot and cold air using centrifugal forces and internal energy exchange Efficiency limits : limited by friction losses and material properties , affecting maximum achievable temperature difference Optimal design insights : studies recommend nozzle size and configuration to enhance cooling efficiency 10/6/2024 11

12. 10/6/2024 12 OPTIMIZATION OF PARAMETERS EFFECTING THE EFFICIENCY  Nozzle Design: • Smaller nozzles increase velocity and stability. • Smaller nozzles improve temperature separation. Inlet Pressure: • High inlet pressures increase temperature differential. • Find optimal pressure to balance energy consumption and cooling efficiency. Vortex Chamber Length-to-Diameter Ratio (L/D): • Adjust L/D ratio to maximize cold air production and minimize energy loss. Control Valve Adjustment: • Fine-tune valve position to achieve desired cooling performance. Material and Surface Finish: • Use high-conductivity materials and smooth surface finishes to reduce thermal losses.

13. WORK DONE Study Of Vortex Tube Identified The Parameters FUTURE WORKS Calculating the Parameters Designing the vortex tube Analyzing the Design In Ansys Fabrication 10/6/2024 13

14. PROJECT PLAN 10/6/2024 14

15. THANK YOU 10/6/2024 15