関連ニュース

概要

The Computer Controlled Permeability/Fluidisation Studies Unit, "PEFPC", allows to observe the behaviour of liquid fluidisation in a granular bed.

The main element is a permeability meter. It is a transparent cylinder that supports the soil sample to be studied. Water will flow downward to study permeability or upward to study fluidization.

The cylinder has four pressure taps: one at the top and one at the bottom to measure the pressure drop through the bed and two along the cylinder to measure the total pressure at those specific points of the sample.

Water is supplied to the permeability meter by a constant pressure supply device. It is a transparent tank with an overflow located above the permeability meter. The height of this tank can be changed, thus modifying the pressure.

Two metal filtering discs are placed between the floor and the porous element at the top and bottom of the cylinder. These discs act as filters and distribute the flow over the cross-sectional area of the sample.

The unit has several pressure sensors that are used to measure both low and high pressures.

This Computer Controlled Unit is supplied with the EDIBON Computer Control System (SCADA), and includes: The unit itself + a Control Interface Box + a Data Acquisition Board + Computer Control, Data Acquisition and Data Management Software Packages, for controlling the process and all parameters involved in the process.

演習と指導の慣行

マニュアルに含まれるガイド付き実習

  1. Pressure drop measurements and correlations for flow through packed beds.
  2. Calculation of the density of each sample.
  3. Calculation of the relative density of a mixed sample.
  4. Study and verification of the Kozeny´s equation.
  5. Calculation the void ratio.
  6. Determination of the permeability coefficient (Darcy´s Law).
  7. Observation of a liquid fluidised bed.
  8. Characteristic of a liquid fluidised bed.
  9. Measurement of permeability of selected solids.
  10. Sensors calibration.

より実用的な練習をして、ユニットを完成させる

  1. Many students view results simultaneously. To view all results in real time in the classroom by means of a projector or an electronic whiteboard.
  2. Open Control, Multicontrol and Real Time Control. This unit allows intrinsically and/or extrinsically to change the span, gains, proportional, integral, derivative parameters, etc, in real time.
  3. The Computer Control System with SCADA and PID Control allow a real industrial simulation.
  4. This unit is totally safe as uses mechanical, electrical/electronic, and software safety devices.
  5. This unit can be used for doing applied research.
  6. This unit can be used for giving training courses to Industries even to other Technical Education Institutions.
  7. Control of the PEFPC unit process through the control interface box without the computer.
  8. Visualization of all the sensors values used in the PEFPC unit process.
  9. Several other exercises can be done and designed by the user.

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