Transcription of VTECH LEAK DETECTION - vtechonline.com
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VTECH LEAK DETECTION . Leak DETECTION Theory and Practise Comparison among leak testing techniques Rev. 1 29 Mar. 06. VTECH_leak_detection -0- Rev. 2 23 nov. 2004. INDEX. 1. INTRODUCTION .. 3. 2. LEAK 4. 3. LEAKAGE MEASUREMENT 4. 4. LEAK SIZES .. 4. 5. SOME USEFUL FORMULAE .. 6. Ideal Gas Law and Real Gases .. 6. Gas Flow and Leak Rate .. 7. Turbulent flow .. 7. Laminar flow .. 8. Molecular flow .. 9. Transitional flow .. 10. Gas 11. Laminar flow .. 11. Molecular flow .. 11. Conversion from Mass Leak Rate to Volume Leak Rate .. 11. Diffusion of Gases .. 12. Permeation .. 12. 6. LEAK TESTING IN REFRIGERATION INDUSTRY .. 13. 7. LEAK TESTING 13. Ultrasonic Leak 15. Water Immersion Bubble Test Method .. 15. Soap Solution Bubble Test .. 17. Pressure Decay Test .. 17. Vacuum Decay Test or Pressure Rise 19. Tracer Gas Leak Testing .. 21. Sniffing .. 22. Accumulation leak 22. Vacuum chamber inside-out leak testing.
VTECH_leak_detection Rev. 2 – 23 nov. 2004 -0- VTECH LEAK DETECTION Leak Detection Theory and Practise Comparison among leak testing techniques
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