Airflow
The air mass flow measuring method using supercritical nozzlesSonic nozzles
Automatic pressure control
Relative pressue at test object: 1.1 to 1.5 Pabs, optional up to 3.5 x Pabs
Mass flow: 5.0-750kg/H
Accuracy: +-1% full scale,+-0,5% optional
Easy to use
Export to Excel, ASCII, SAP
Overview
The measurement technique of air flow with sonic nozzles can be used to measure the mass flow through turbine blades, blast pipes or gas burners with very high accuracy. Our test stands are compact and include the sonic nozzles, the sensores and the PC for the automatic test control.
Cost and time reduction
The easy use of the software and an high safety level makes it is possible for normal workers to do the measurements of the test objects. This leads to a reduction of costs and enables a test in the production line. Deviations from the tolerances are detected very early and bad parts can be sorted out. To reach this goal the automation of the following steps was done:
Pressure control
Valve steering
Selection of measurement parameters
The complete measurement is reduced to one mouse click.
Software
The main focus during the development was to create an easy to use and very functional software. The result is a program that can be used for nearly every quality test. The following key features are available:
Sequential measurements (inluding master balde measurements)
R&D test measurements
Sequence management
Test item management (Blade management)
Analysis & reports
User & right management
All setups and measurement data are saved in an local data base but can also be stored on an main server. The export to Excel or SAP is implemented and with the “Office-Function” it is possible to setup the paramter or define or edit the test sequences form the office PC via the network.
Applications
Components test for gas turbines
Air cooled turbine blades
Gas burner with mutiple ports
Detection of the flow-cross section
Drill holes
Complex test objects
Calibration of mass flow measurement devices
