Local exhaust ventilation (LEV) device

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Table of contents

1. INTRODUCTION
Local exhaust ventilation (LEV)
Literature review
Scope of the thesis
2. THEORY
Interaction between fluid flow and a cylinder
Percentage of Negative Velocities
3. METHOD
Air velocity measurements
Calibration
The test room
Exhaust device
Positioning cases for the exhaust device
Movable cylinder – turbulence generation
4. RESULTS
Comparison of air turbulence generated by the movable cylinder and a real walking person
Percentage of Negative Velocities
Air stabilization time
Comparison of the PNV between the use of a movable cylinder and a movable plate
5. DISCUSSION
6. CONCLUSIONS
Reference