EGTWC Unité de Production d'Énergie Géothermique Contrôlée par Ordinateur avec Système à Deux Puits



The objective of the Computer Controlled Geothermal Energy Unit with Two-Well System, "EGTWC", is to introduce the student to a leading renewable energy in the market, such as low enthalpy geothermal energy and, in particular, to the study of thermal power generation from surface groundwater through a two-well system.

Voir description générale

Description Générale

The Computer Controlled Geothermal Energy Unit with Two-Well System, "EGTWC", is a laboratory scale unit designed to study a two-well system used for the exploitation of thermal energy stored under the Earth’s surface.

The main element is a tank with one working section and two side chambers, one for the inlet and the other for the outlet of water. The sand bed through which the groundwater flows is located in this tank. Its flow can be adjusted by height-adjustable overflows. The groundwater level in the working section can be visualized by manometric tubes.

It is a self-contained unit with a water supply tank (groundwater simulation) from which a computer controlled pump drives the water to the sand bed chamber. Before entering the supply chamber, the water is heated by a computer controlled heating element, allowing to control the groundwater temperature.

The water crosses the working section, where there is a two-well system, a production and an absorption one. In the production well, wateris pumped into a plate heat exchanger to transfer its thermal energy to an external flow (working fluid). The flow of groundwater pumped to the exchanger can be adjusted and the unit has the measurements of flows and temperatures of both currents allowing the realization of the energy balance.

The working fluid flow to be heated in the exchanger can be tap water from the laboratory or water from EDIBON recommended element "TERA", suitable to work with this unit.

At the exit of the exchanger, water flows towards the bottom of the absorption well, leaving the working section towards the supply tank through the outlet chamber.

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.

Des exercices et pratiques guidées


  1. Study of the basic principles of low enthalpy geothermal energy.
  2. Calculation of transferred thermal power.
  3. Visualization of the operation of a two-well system.
  4. Study and analysis of the hydraulic and thermal properties of the ground.
  5. Determination of the useful thermal power.
  6. Fundamentals and energy balance of a heat pump.
  7. Sensors calibration.


  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 and 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 EGTWC unit process through the control interface box without the computer.
  8. Visualization of all the sensors values used in the EGTWC unit process.
  9. By using PLC-PI additional 19 more exercises can be done.
  10. Several other exercises can be done and designed by the user.



Service après vente