PLC-TPVC PLC Industrial Process Control for TPVC

6.3.7.- THERMODYNAMICS & THERMOTECHNICS
COMPUTER CONTROLLED VORTEX TUBE REFRIGERATOR UNIT - TPVC

INNOVATIVE SYSTEMS

The Computer Controlled Vortex Tube Refrigerator Unit, "TPVC", is a unit designed to study the physical, mechanical and thermodynamic characteristics of a vortex tube.

See general description

General Description

The Computer Controlled Vortex Tube Refrigerator Unit, "TPVC", is a unit designed to study the physical, mechanical and thermodynamic characteristics of a vortex tube.

This unit works with compressed air. The air, previously filtered to remove impurities, passes through a vortex tube, being possible to regulate the pressure of the inlet air and vary its temperature (these variables are measured before entering the vortex tube):

  • To study the influence of the inlet pressure variation it is possible to regulate the pressure with a computer controlled electronic valve up to the maximum pressure set in the filter before.
  • To study the influence of the inlet temperature variation it is possible to vary the temperature with a concentric tubes heat exchanger, where the inlet current is cooled down or heated.

Air enters the vortex tube tangentially and rotating very quickly, as a result a cold air flow and a hot air flow are generated inside the vortex tube. They leave the tube by opposite ends, where there are two regulation valves to vary these air flows (cold fraction).

Hot air obtained at one end is measured by a flow sensor and its characteristics can be determined by a temperature sensor, a pressure sensor and a manometer. This air, with the suitable arrangement of the valves, can be either released or introduced into the heat exchanger to give its heat to the air current entering the vortex tube.

The cold current is obtained at the other end of the tube. It is also measured by a flow sensor, a temperature sensor, a pressure sensor and a manometer and it can also be recyled or not. Several exchangeable vortex generators (nozzles) with different internal diameter are included.

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.

Exercises and guided practices

GUIDED PRACTICAL EXERCISES INCLUDED IN THE MANUAL

  1. Function and operation of the vortex: demonstration of the cold and hot air generation without moving parts.
  2. Representation of the vortex curves:
    • Vortex curve in function of the inlet pressure.
    • Vortex curve in function of the inlet temperature.
    • Vortex curve for the refrigeration power:
      • In function of inlet temperature.
      • In function of inlet pressure.
  1. Refrigeration and/or efficiency capacity (COP, Coefficient of Performance):
    • In function of inlet temperature.
    • In function of inlet pressure.

MORE PRACTICAL EXERCISES TO BE DONE WITH THE UNIT

  1. Representation of the vortex curves:
    • Vortex curve varying the type of gas, "neither explosive nor corrosive".
    • Vortex curve in function of the hot and/or cold gas ratio.
  1. Distribution of the cold air flow.
  2. Study of the differences changing the vortex generator:
    • Vortex curve in function of the inlet pressure.
    • Vortex curve in function of the inlet temperature.
    • Vortex curve for the refrigeration power.
    • Coefficient of performance (COP).
  1. Sensors calibration.
  2. Many students view results simultaneously. To view all results in real time in the classroom by means of a projector or an electronic whiteboard.
  3. Open Control, Multicontrol and Real Time Control. This unit allows intrinsically and/or extrinsically to change the span, gains, proportional, integral, derivate parameters, etc, in real time.
  4. The Computer Control System with SCADA allows a real industrial simulation.
  5. This unit is totally safe as uses mechanical, electrical and electronic, and software safety devices.
  6. This unit can be used for doing applied research.
  7. This unit can be used for giving training courses to Industries even to other Technical Education Institutions.
  8. Control of the TPVC unit process through the control interface box without the computer.
  9. Visualization of all the sensors values used in the TPVC unit process.
  10. By using PLC-PI additional 19 more exercises can be done.
  11. Several other exercises can be done and designed by the user.

Quality

AFTER-SALES SERVICE

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