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Fluid Mechanics Measurements
Principle and layout
The basic layout is illustrated in Figure 7.9 and Figure 7.10. Measurement capacitors (condensers) are located at well-defined points of the flow path, having a characteristic distance of d along the flow, labelled as A and B in Figure 7.9. The transporting fluid – including the solid particles – and the two cylindrical plates of each capacitor form together a resultant capacitance, being modulated by the particles passing the capacitor. A measurement condenser (either A or B) is sketched in Figure 7.10. By control, the capacitors are charged e.g. by a constant charge. As a result, the capacitor voltage uA between the capacitor plates will be modulated as the particle multitude passes the capacitor plates.
Tartalomjegyzék
- FLUID MECHANICS MEASUREMENTS
- COPYRIGHT PAGE
- FOREWORD
- LIST OF SYMBOLS
- ABBREVIATIONS
- 1. INTRODUCTION AND OBJECTIVES
- 2. PROBES AND SENSORS FOR MEASUREMENT OF THE TEMPORAL MEAN PRESSURE
- 3. VELOCIMETERS
- 4. TEMPERATURE MEASUREMENT
- 5. MEASUREMENT OF UNSTEADY PRESSURE
- 6. TRADITIONAL MEASUREMENT OF VOLUME FLOW RATE
- 7. SPECIALISED FLOWMETERS
- 8. INDUSTRIAL EXAMPLES
- 8.1. Extension of a food industry cooler system
- 8.2. Optimisation of a mineral wool production process
- 8.3. Proposal for noise reduction in an aerobic wastewater treatment plant
- 8.4. Diagnostics on the air supply system of a gas motor power plant
- 8.5. Measurements on a silencer built in a cement industry flue gas duct
- 8.6. Development of an axial flow jet fan of long throw
- 8.7. Development of a standardised axial fan test facility for testing industrial fans of serial production
- 8.8. Fluid mechanical survey of a gas turbine power plant
- 8.9. Testing a wind tunnel fan by means of ad hoc measurements [58]
- 8.10. Study on the effect of flow rate measurement noise in a natural gas supply line
- 8.11. Investigation of the cooling process applied in sheet metal industry
- 8.12. Heat power measurement applied in a remote heating system
- 8.13. Investigation of a chemical industrial solvent supply system
- 8.14. Testing compressors used in air conditioners for cars
- 8.1. Extension of a food industry cooler system
- REFERENCES
Kiadó: Akadémiai Kiadó
Online megjelenés éve: 2020
ISBN: 978 963 454 484 5
This lecture note aims at providing basic information on nowadays applied fluid flow measurement techniques, in terms of their operating principle, layouts, application areas, advantages, and limitations. As such, it intends to give an aid in decision-making when selecting instrumentation for the solution of various practical flow measurement problems, also providing hints for the actual realisation of the measurements.
Hivatkozás: https://mersz.hu/vad-lukacs-fluid-mechanics-measurements//
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