Engine Test Cells

With decades of experience in developing custom-built test rigs, Dynaspede has come out with IC engine test rigs designed for laboratory applications of educational institutions and the Industry. The complete engine test rig is offered in ready-to-use condition. Equipped with the latest Dynamometers and DSP-based software-controlled electronic control system, the rig can be connected to the computer for operation and data storage by user-friendly software.

Dynaspede Engine Test Rig is designed for conducting performance studies on Water Cooled/Air Cooled, Single/Multi Cylinder, and Diesel/Petrol Engines.

The test rig is designed to provide a load to the engine and record

  • Speed and Torque Fuel consumption in specified time at a specified torque value
  • Engine friction
  • Exhaust Gas Temperature
  • Cooling water temperature.

For the evaluation of

  • Engine Torque v/s Speed Characteristics
  • Brake Horse Power (BHP)
  • Frictional Horse Power (FHP)
  • Indicated Horse Power (IHP).
  • Fuel consumption at rated torque
  • Mechanical efficiency
  • Thermal Efficiency
  • Air-fuel ratio

The major system components include:

Base Plate: All the test rig elements including the dynamometer, transducers for torque and speed, required couplings and transmission elements, and the engine are mounted on a common MS fabricated bedplate.

Engine: A branded Engine will be supplied and mounted on the common base plate.

Fuel quantity measurement: Gravimetric type fuel measurement is adopted for correct measurement of fuel consumption by the engine.

Temperature Measurements: Suitable temperature sensors with signal conditioners are provided to measure the exhaust gas and outlet water temperature.

Inlet Air Flow Measurement: A flow-sensing device is adopted for measuring inlet airflow.

Inlet Cooling Water Quantity Measurement: A flow meter is employed to measure the inlet cooling water flow.

Coupling the engine to the Dynamometer: A Cardan shaft with universal joints is used to couple the engine to the Dynamometer.

Engine Starting Arrangement (Optional): A starter motor with Battery and battery charging unit is supplied for easy starting of the engine. The dedicated control system shall be designed for sequencing and control of the test rig based on specific test requirements.

Software: The test rig is accompanied by user-friendly interactive software, which is designed for:

  • Conducting tests and acquiring test data
  • Tabulation of the data in the form of report
  • Plotting of characteristic curves
  • Printing of reports and Characteristic curves

Braking devices / Dynamometer:

Dynaspede offers a wide variety of braking devices / dynamometers for the engine test rig. Depending on the specific applications and torque-speed characteristics of the engine, the most appropriate type of braking device can be selected. (Salient features of the same are given over-leaf.)

Braking devices / Dynamometers range from 10 Nm up to 1500 Nm

Eddy Current Dynamometer:

Salient features:

  • Available in different speed ranges
  • Suitable for loading prime movers that develop torque, gradually increasing with speed or constant torque over mid-to-high speed ranges
  • Available in self-cooled, water-cooled and coolant-cooled models

Magnetic Particle (Powder) Dynamometers:

Salient features:

  • Set torque is fairly stable right down to zero speed
  • Speeds of operation up to 3000 rpm, depending on the model
  • Low inertia, dynamically balanced rotors
  • Low residual torque as specified for each model
  • Available in water-cooled models

Pneumatic Dynamometers:

Salient features:

  • Fairly stable set torque right down to zero speed
  • Speed of operation up to 2000 rpm, depending on the model
  • Low inertia, dynamically balanced rotors
  • Low residual torque, as specified for each model
  • Bi-directional operation
  • Built-in filter-regulator and electric/pneumatic converter

AC / DC Motoring:

Salient features:

  • Low Inertia construction
  • High response
  • High degree of control stability and repeatability
  • Available in low to medium power ratings and for wide speed range
  • Models available for full regeneration of power to the mains
  • Capable of monitoring the system/friction losses

All the above braking devices are available with integral speed and torque sensor and suitable for bi-directional operation.

Control options for braking devices

For simple torque control, we offer a wall-mounted exciter unit with necessary operator controls mounted on the front door of the cabinet such as Main Power ON/OFF switch, Torque setting potentiometer and Digital Torque and Speed indicators.

For high-end control, we offer DSP-based programmable digital controller. The feature-packed controller has:

  • Speed and Torque operating modes
  • 32 Chars X 1 Line LCD backlit LCD display with membrane keypad
  • RS-232 interface (Serial communication)
  • Capability for high speed data Acquisition (100 data points per sec)
  • Options for conducting No load test, Load test, Cyclic load test and Dynamic test