COMPUTER CONTROLLED OCEAN THERMAL ENERGY UNIT

The Computer Controlled Ocean Thermal Energy Unit, “ETMC”, unit is designed for simulating an energy generation system that extracts the thermal energy from the upper layers of the ocean, using them as the hot focus of a thermal cycle and the deep layers as the cold focus.

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DESCRIPTION

The Computer Controlled Ocean Thermal Energy Unit, “ETMC”, unit is designed for simulating an energy generation system that extracts the thermal energy from the upper layers of the ocean, using them as the hot focus of a thermal cycle and the deep layers as the cold focus.

The basic principle of this system is the use of a heat engine that converts thermal energy into mechanical work through the temperature gradient between a “heat source” and a “heat sink”. The temperature difference is used to evaporate and condense a working fluid to drive a turbine – generator to produce electricity.

This unit mainly consists of:

  • A closed circuit in which a pump impels a working fluid through a hot water circuit (evaporator), where it is evaporated to move the blades of a turbine and, thus, generate electricity. At the outlet of the turbine the pump impels the working fluid through a cold water circuit (condenser), so that it goes back to liquid state and starts the cycle again.
  • Hot temperature water circuit consisting of a tank with a heating element and a pump.
  • Cold temperature water circuit consisting of a chilling unit and a pump.

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.

GUIDED PRACTICAL EXERCISES INCLUDED IN THE MANUAL

  1. To familiarize the student with the ocean thermal energy conversion and all the stages of the process.
  2. To prove the generation of vapor from the working fluid when hot water flows through the evaporator.
  3. To prove the condensation of the working fluid when it crosses the cold water supplied condenser.
  4. To make energy balances.
  5. To measure the electricity generated.
  6. To study the influence of the working fluid flow and temperatures on the generation of electricity.
  7. Determination of the efficiency of the turbine.
  8. Study of the specific steam consumption of the turbine.
  9. Sensors calibration.

MORE PRACTICAL EXERCISES TO BE DONE WITH THE UNIT

  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 ETMC unit process through the control interface box without the computer.
  8. Visualization of all the sensors values used in the ETMC 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.

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