Wind power plant with rotor blade adjustment and yaw angle adjustment

Learning objectives/experiments

• conversion of kinetic energy into electrical energy
• power adjustment by means of
  • speed adjustment
  • rotor blade adjustment
• behaviour in the case of oblique flow
  ….

Conversion of kinetic wind energy into electrical energy

Learning objectives/experiments

• conversion of kinetic wind energy into electrical energy
• function and design of an stand-alone system with a wind power plant
• determining the power coefficient as a function of tip speed ratio
• energy balance in a wind power plant
• determining the efficiency of a wind power plant
  ….

Connection to ET 220 or ET 220.10; outdoor installation allows practically relevant investigations

Learning objectives/experiments

• conversion of kinetic wind energy into electrical energy
• design and function of a wind power plant in stand-alone operation
• energy balance of a wind power plant under real wind conditions

• GUNT E-Learning
  ….

Use of wind energy in stand-alone operation under real weather conditions

Learning objectives/experiments

• in combination with the wind power plant ET 220.01:
  • conversion of kinetic wind energy into electrical energy
  • operating behaviour of a wind power plant under real weather conditions
  • components, function and setup of a stand-alone system with a wind power plant
  • energy balance of a stand-alone system with a wind power plant
    ….

Illuminated test section, various models, fog generator included

Learning objectives/experiments

• visualisation of streamlines
• flow around or through differently shaped models
• flow separation and turbulence
• stall as a function of the angle of attack

Experiments from the field of aerodynamics and fluid mechanics with an "Eiffel" type wind tunnel

Learning objectives/experiments

• experiments with accessories
  • determine drag and lift coefficients for different models
  • pressure distribution on bodies immersed in a flow
  • boundary layer analysis
  • investigation of flutter
    ….

Extension to wind tunnel HM 170

Learning objectives/experiments

• conversion of kinetic energy into electrical energy
• power adjustment by means of
  • speed adjustment
  • rotor blade adjustment
• behaviour in the case of oblique flow
  ….

Experiments with different aerofoil angles of attack

Learning objectives/experiments

• record pressure distribution on an aerofoil immersed in a flow
  • as a function of the angle of attack

Experiments on bodies immersed in a flow

Learning objectives/experiments

• experiments on bodies immersed in a flow
• determination of the drag coefficient (c_d factor)

Experiments on bodies immersed in a flow

Learning objectives/experiments

• experiments on bodies immersed in a flow
• determination of the drag coefficient (c_d factor)
• determination of the lift coefficient
• together with the force sensor HM 170.40
  • determination of the moment coefficient

Experiments on conversion of rotational energy into electrical energy

Learning objectives/experiments

• conversion of rotational energy into electrical energy
• influence of torque and speed on the efficiency of the transmission
• influence of torque and speed on the efficiency of the generator
• influence of the typical torque characteristic of a wind rotor on the overall efficiency of the drive train

….

Characteristic and control on a wind power drive train

Learning objectives/experiments

• conversion of kinetic energy into electrical energy
• power coefficient and tip-speed ratio
• study how torque and speed affect the efficiency of the gear unit and generator
• study how wind speed and rotor blade angle affect the typical torque characteristic of a wind rotor
• power limitation by controlling speed and rotor blade angle
  ….

Test system for determining mechanical drive and braking efficiency for spur and worm gears

Learning objectives/experiments

• determination of the mechanical efficiency of gears by comparing the mechanical driving and braking power for
  • spur gear, two-stage
  • worm gear
• plot the torque/current characteristic curve for a magnetic particle brake
• drive and control engineering

Investigation of the dynamics of rotation of one-, two- and three-stage spur gear units

Learning objectives/experiments

• determining the angular acceleration on gears
• determining the mass moment of inertia of the gear
• determining the friction
• determining the gear efficiency

Investigation of rotational dynamics of a two-stage epicyclic gear with three planetary gears each; four different transmissions adjustable

Learning objectives/experiments

• determine the transmission ratio for a locked gear
• measure transmitted forces for a locked gear
• gear acceleration under constant driving torque
• influence of the transmission ratio
• determine reduced mass moment of inertia
  ….

Base unit for setting up wide ranging experiments in machinery diagnostics using modular accessory sets

Learning objectives/experiments

• introduction to vibration measuring methods on rotating machinery systems
  • fundamentals of measurement of shaft and bearing vibrations
  • basic variables and parameters
  • sensors and measuring devices
  • influences of speed and shaft layout
    ….

Vibrational behaviour of a shaft with a radial crack

Learning objectives/experiments

• change in characteristic vibration behaviour (natural frequency, resonance speed, amplitude and phase of vibrations) due to a crack
• crack identification from the change in vibration spectrum
• detection of cracks in rotating shafts at the protruding shaft end
• understanding and interpreting frequency spectra
• use of a computerised vibration analyser
  ….

Assessment of bearing condition by vibration analysis

Learning objectives/experiments

• vibrational spectrum of the running noise of roller bearings
• familiarisation with the envelope analysis
• influence of damage to outer race, inner race or roller body, on the spectrum
• estimating service lives of roller bearings
• influence of the lubricant on the vibration spectrum
  ….

Vibration analysis of gearing damage

Learning objectives/experiments

• identification of gear damage from vibration behaviour
• influence of gearing type
  • spur toothed
  • helical
• localisation of damage
  ….

Investigation of vibrational behaviour of an electric motor

Learning objectives/experiments

• influence of the gap on vibration behaviour
• influence of electromagnetic asymmetry on vibration behaviour
• influence of the load on the level of vibration
• influence of the gap on electromagnetic losses and efficiency
• influence of speed on vibration behaviour
  ….