Air-Cooled, Single Cylinder, 2-Stroke, Petrol Engine — MOE Lab Tender Details

Air-Cooled, Single Cylinder, 2-Stroke, Petrol Engine for Thermodynamics Lab Equipments

The experimental test-rig should have capabilities such as plotting of torque and power curves, determination of volumetric efficiency and fuel-air ratio, determination of mechanical efficiency, specific fuel consumption, frictional power of engine, to draw heat balance sheet, Pθ diagram, P-V diagram, pressure curve for gas cycle, determination of indicated power output from P-V diagram, performance test under different loads and speeds etc.  
Test Stand (Control and Load unit):   
• Computer Controlled, Control and Load Unit for Single Cylinder Two Stroke
Petrol Engine with a maximum power output of 7.5kW.  
• Test Stand with wheels for mobility and with proper vibration control measures.  
• Schematic diagram of the test-rig on the front panel with measurement locations
• Asynchronous motor with regenerative feedback unit as the brake for generating
the engine load, and can be also used as starter motor.  
• Engine started by asynchronous motor.  
• Force transmission from the engine to the brake unit by means of a coupling
(universal joint/leather pads). Proper attachment to adjust braking torque and brake
speed.   
• Quietening vessel for intake air.  
• Potentiometer for continuous adjustment of braking torque and speed.  
• Vibration damping base plate with damping mass.  
• Sensors for measurement and display of Torque, Air Temperature, Air intake
Quantity, Pressure, Speed, Fuel Consumption and Temperature, Exhaust Gas
Temperature and Cooling Water Temperature.  
• The unit should be Computer Controlled i.e. commands for operation of unit
should be given from computer.
Air Cooled Single Cylinder Two Stroke Petrol Engine:  
• Power output: 4 kW (minimum) and 7.5 kW (maximum) at 4500 rpm  
• Compression ratio (minimum): 6:1
• Desirable Additional Features: Possibility of running the engine on LPG and CNG
in addition to petrol.   
Electronic Engine Indicating System:   
• Cylinder pressure indication system for internal combustion engine  
• Chronological representation of pressure curve against the crank angle in P-θ
diagram to determine the maximum pressure and to monitor the ignition point and
the pressure increase.  
• Representation of pressure curve against the standardised piston capacity in P-V
diagram to determine the indicated power output.  
• System consists of measuring amplifier, TDC sensor and software for Windows
XP, Windows Vista or Windows7.