DESIGN AND ASSEMBLY OF A COMPACT TEST RIG FOR TESTING AIR COMPRESSOR

PROJECT MEMBERSDINESH KUMAR .C.K (VTU 0111) MD. FAIYAZ ALAM (VTU 0067)

COMPANY WABCO INDIA LIMITED

INTERNAL GUIDE (COLLEGE) Mr. RAM KUMAR .S

INTERNAL GUIDE (COMPANY)Mr.THUKARAM.J

ABSTRACTDesign for a TEST RIG TO TEST AIR COMPRESSORS

that is used in Air Braking System and to check for the test conditions.

Choosing suitable Sensors for measuring Temperature, Pressure, Flow Rate, Acceleration & Deceleration of Motor.

Choosing a suitable Microcontroller for controlling the test rig.

Data Acquisition for storing the data after testing.

TESTING CONDITIONS

Speed (r/min) * Max. Charging time (s)

No Load 1500 20.0

3000 15.0

Charging time to 8 bar 1500 21.9

3000 11.3

Charging time to 12 bar 3900 30.0

ANALYSIS OF THE SENSORS TO BE USED IN

THE TEST RIG

EXISTING SYSTEM

BLOCK DIAGRAM

PROPOSED SYSTEM

SELECTING SUITABLE PRESSURE SENSOR

• To select a pressure sensor that can withstand a maximum of 12 bar(174 psi).

• Also to select a long-term stability, cost effective sensor with high accuracy, easy installation and low maintenance.

• Ceramic CAPACITIVE sensor is suitable for this purpose.

SELECTING SUITABLE SPEED SENSORMax. speed to be measured is

3900 rpm(revolutions per minute).

Preferred method - Contact type.

Size-should be compact.

Accordingly, FIXED TYPE DC TACHOMETER is suitable for this purpose.

SELECTING SUITABLE TEMPERATURE SENSOR

Max. temperature to be measured- 90 Degree Celsius.

Medium-water / Air.

It should have good reliability & low cost.

Accordingly, THERMOCOUPLE type temperature sensor is suitable for our purpose.

SIMILARLY OTHER SENSORS TO BE USED ARE

Flow sensor

Torque sensor

Pressure sensor for pumps

Level sensor

THANK YOU