AFF151 Fundamentals of Air Flow Training System Vocational Training Equipment Hydrodynamics Experiment Apparatus
The System Should cover the following Training Objectives: Investigation of fan characteristic and recording them Study of fan efficiency Study of velocity distribution in the pipe Study of velocity distribution behind a cylinder subject to transverse incident flow Investigation of pressure distribution around a cylinder subject to transverse incident flow Familiarization with friction losses in pipes, pipe bends and pipe angles Conducting measurement of the power consumption of a fan Conducting measurement of the power consumption of a pump Determination of the related characteristic curve Conducting measurement of the total pressure and the static pressure in intake pipe Study of pressure distribution over the cross section Study of velocity distribution over the cross section Conducting measurement of the total pressure in the wake of a cylinder Determination of drag coefficient from the pressure distribution in the wake of a cylinder Study of wake depression Conducting measurement of the total pressure in the wake of a cylinder Study the influence of differently shaped pipe inlets: uninterrupted air inlet and sudden enlargement Recording the cooling curve of a copper cylinder subject to incident flow Determining the heat transfer coefficients from the cooling curve The System Comprising the Following: 1.Air Flow Base Unit Minimum Technical Specifications Required (like or better than): Radial fan with power consumption: 90W, speed: 2800rpm, flow rate: 450m3/h and differential pressure: 480Pa Delivery pipe with outer diameter: 105mm and inner diameter: 99 mm transparent Intake pipe with outer diameter: 140mm and inner diameter: 133mm connector for Pitot tube Throttle valve for adjusting the air flow Switch box with pressure transducer Pressure measuring range: ±10mbar and 2x ±1mbar Temperature measuring range: 0 to 200°C Data acquisition unit with software USB interface PC Core i7, DVD+/-RW, 8GB RAM, 1TB Hard Disk Drive, Optical Mouse, Multimedia Keyboard, Monitor (21") LED 2.Table Top Digital Power Meter Minimum Technical Specifications Required (like or better than): Should be able to measure the consumed electrical active power of a consumer power measurement should be unrelated to form factor Power measuring range: 0 to 300W 3.Electronic Pressure Sensor Unit Minimum Technical Specifications Required (like or better than): Electronic pressure sensor Pitot tube with outer diameter: 0.70mm with inner diameter: 0.40mm and vertical adjustment: 0 to 130mm Should be able to measure static and dynamic pressure Should be capable of detection of the position electronically 4.Rotatable Cylinder Unit Minimum Technical Specifications Required (like or better than): Rotatable cylinder with outer diameter: 25mm and inner diameter: 21mm, radial hole for pressure measurement at any angle adjustment Angle adjustment with scale Potentiometer Capability of electronic detection of the angle 5.Pipe Elements Unit Minimum Technical Specifications Required (like or better than): Straight pipe section with flange length: 1200mm and inner diameter: 50mm Straight pipe section with length: 990mm, two interchangeable pipe inlets: sudden enlargement or uninterrupted air inlet 90° pipe bend 90° pipe angle Should include measuring points on straight pipe sections for pressure measurement Should include measuring points at pipe inlets for velocity measurement 6.Heat Transfer Oven Minimum Technical Specifications Required (like or better than): Oven with heating power: 100W Copper cylinder with integrated temperature sensor Cylinder should be heated in the oven to approximately 120°C Oven should keep the temperature constant Measured values should be displayed and analyzed via air flow base unit software
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