NTC-16.71 “Gas dynamics of ventilation systems”

Br0.00

The training laboratory stand is designed to study ventilation system elements, methods to regulate and monitor parameters in ventilation systems, to determine hydraulic resistance of ventilation system elements.

 
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The stand is designed as a ventilation systems installation. System components are installed on the profile aluminum rack (mobile mounting platform).

On the mobile platform is installed the main equipment:

  • rotary blower;
  • tachometer;
  • valve system and air ducts of different configuration and materials;
  • microprocessor-based measuring system.

Air ducts are designed as circular 100 mm diameter and rectangular cross-section pipes made of PVC, circular transported 100 mm diameter pipe mounted on the front side of the mounting frame.

The measuring system allows to register static and dynamic pressure in metering sections, rotation speed of the fan impellers, voltage, current, active power of fan electric motor. To measure static and dynamic pressure are used differential pressure transducers. Pressure sensors are connected to air ducts via system of tubes.

Microprocessor -based control and measuring system has a modular design combining autonomous units. The Microprocessor-based system includes the following units:

  • inlet unit;
  • power supply unit;
  • pressure measurement and tachometer unit;
  • power measuring unit;  
  • pressure measuring unit.

The stand is accompanied with a set of teaching materials and technical documentation intended for the teaching staff.

3D model

Experiments provided

  1. Studying pressure measuring instruments and methods.
  2. Studying velocity distribution profiles (by the value of dynamic pressure) for the air flowing through a circular duct using a Pitot tube. Determining flow by the velocity profile.
  3. Studying characteristics of a fan.
  4. Studying characteristics of ducts: determining losses of pressure head along the length, resistance and friction coefficients.
  5. Studying characteristics of a regulated flap: determining losses of pressure and resistance coefficients.

Technical specifications

Power supply ~220 V, 50Hz (one phase 220 V, 50 Hz)
Consumed power, kW, not more than 0,5
Overall dimensions, not more than:
width, mm 2020
height, mm 1820
depth, mm 770
Weight, kg, not more than 55

Scope of delivery

  • training laboratory stand – 1 pc.;
  • passport – 1 pc.;
  • supplementary materials in electronic format – 1 pc.

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