TBMC8 Computer Controlled Test Bench for 7.5 kW Engines

COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8

Unit: TBMC8. Computer Controlled Test Bench for Single-Cylinder Engines, 7.5 Kw

COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8

Unit details

COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8

TBMC8/CIB. Control Interface Box: The Control Interface Box is part of the SCADA system

COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8

Process diagram and unit elements allocation

COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8

TBMC8/SOF. TBMC8 Software. Main Screen

COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8
COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8
COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8
COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8
COMPUTER CONTROLLED TEST BENCH FOR 7.5 KW ENGINES - TBMC8

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General Description

The Computer Controlled Test Bench for Single-Cylinder Engines, 7.5 kW, "TBMC8", designed by EDIBON, is a teaching unit to test internal combustion engines of up to 7.5 kW.

The element of the unit that offers load torque is an eddy current electromagnetic brake. It is supplied by a variator that allows to control the supply voltage and to vary its torque characteristics. The brake is jointly coupled to the shaft of the combustion engine by a double Cardan joint that transfers torque and power.

The unit also includes:

  • Instrumentation: there are several sensors that provide us measurements of the variables under study.
  • Start system: the engine includes its own electric starter motor that facilitates its operation.
  • Fuel supply system: it carries the required fuel to the internal combustion engine.
  • Cooling system: it carries out the cooling required for the correct operation of the engine. A forced water current removes the heat generated in the engine and transfers it to the atmosphere with a radiator. In case of air-cooling, the refrigeration is obtained by the passing of ambient air through the fins of the engine.
  • Air intake system: it allows the intake of fresh air in the engine. It contains the oxygen required to generate the combustion.
  • System to remove the exhaust gases: it removes from the engine the substances generated during the combustion and reduces the noise inherent to the gases flow.

The engine test bench "TBMC8" allows to study combustion engines, obtaining their characteristic curves by setting the accelerator of the engine to a specific position and varying the braking torque. Thus, different points of the torque or power versus velocity characteristic curve are obtained. Such curve will be at full load if the accelerator is at its maximum position.

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. Determination of the characteristic curves of an internal combustion engine at different speed regimes:
  • Torque.
  • Power.
  • Specific consumption of fuel.
  1. Determination of the efficiency, fuel specific consumption and air-fuel ratio of an internal combustion engine.
  2. Determination of the volumetric efficiency and the average effective pressure of an internal combustion engine.
  3. Sensors calibration.

MORE PRACTICAL EXERCISES TO BE DONE WITH THE UNIT

  1. Familiarization with four strokes petrol and diesel engines.
  2. Comparison of the characteristics of diesel oil and petrol engines.
  3. Study of cooling in alternative internal combustion engines.
  4. Analysis of an internal combustion engine exhaust gases (it requires the TBMC-AGE accessory). Recommended for petrol engines.
  5. Calculation of the heat contained in the exhaust gases of an internal combustion engine (it requires the TBMC-CG accessory).

Other possibilities to be done with this 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 TBMC8 unit process through the control interface box without the computer.
  8. Visualization of all the sensors values used in the TBMC8 unit process.
  9. Several other exercises can be done and designed by the user.

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