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Cold Air Unit Test Bench

About

The cold air unit test bench is used to control test parameters while performing operational testing on the EC70 air cycle machine. Three motor-operated butterfly valves and two manuals control air flow through the ACM and secondary heat exchanger. The heat exchanger is used to ensure exact aircraft conditions are met for the ACM under test. Various sensors or ports are available to read temperatures, pressures, shaft displacement etc. by remote data system.

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Technical Details

S.no. Name of Characteristic Value of Characteristic
1Flow of compressed air up to: 90lbs/Min
2Pressure of compressed air: 150 Psig
3Temp. Of compressed air up to: 350 Deg. C 350 Deg. C
4Material of construction:All items coming in contact of the hot compressed air shall be of SS 304H Schedule- 80 only.
5Pressure sensors having accuracy: 0.25%
6Temperature Sensor: Thermocouple K-type with accuracy +/- 0.5%
7Flow sensor: Accuracy +/- 0.5%
8 Input power requirement: 415V with +/- 10% variation, 3-phase, 50+/-2Hz.

  • The ACM test stand is used to control test parameters while performing operational testing on the EC70 air cycle machine.

Key Features

  • The extreme parameters of the test set up achieved using optimum & precise design.
  • Repeatability & Accuracy of test result.
  • User friendly DAQ System.
  • Test rig is approved by the CRI representative of DGAQA with the co-ordination of HAL.

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