



Wind tunnel test machine
The wind tunnel testing machine applies to the heat dissipation performance test of the fan coil of the radiator and hot air fan of the automobile, tractor, and construction machinery engine.
Test items
- Heat dissipation performance test
- Air resistance test (referred to as wind resistance test)
- Water resistance test (referred to as water resistance test)
Technical data of Wind tunnel test machine
- Fan speed: 3.0~15.0 m/s (variable frequency speed regulation, PID control)
- Circulating water flow: 0.2~15m3/h (variable frequency speed regulation, PID control)
- Circulating water temperature: 50~95 ℃ (PID control)
- Temperature measurement accuracy: ± 0.05 ℃
- Pressure measurement accuracy: ± 0.1pa
- Thermal balance error (average value): ≤± 3.5%
- Test radiator * Large front dimension: 800*800
- Test radiator * small front dimension: 200*200
- Ambient temperature: 5~35℃
- Working ambient temperature: 15~30 ℃
Functions and features
- The ordinary fan is selected, which is driven by frequency conversion and stepless speed regulation, with remarkable energy saving
- The circulating water pump is driven by frequency conversion to adapt to test pieces of different specifications and models
- The gas and water measurement adopts modular structure and synchronous measurement without time lag
- Collection method of inlet and outlet air temperature: establish temperature field
- The primary data of synchronous measurement are