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GAIPP


Abstract

Speed-adaptive isokinetic particle sampling


Background

Isokinetic aerosol sampling is currently only designed and used in very narrow speed ranges. However, known diffusers are only permanently adjustable and designed for a specific flow velocity.


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Solution

The idea behind the new technology is to use a diffuser upstream of the isokinetic particle sampling to reduce the flow velocity of the inflowing medium as the flow cross-sectional area inside the diffuser increases. The isokinetic particle sampling is arranged in the diffuser and can be variably positioned in the longitudinal direction of the flow within the diffuser, the displacement of the sampling and the diffuser relative to one another taking place as a function of the flow velocity. This results in the advantages of covering a very wide, also strongly varying speed range, and of achieving higher data validity at variable flow speeds.


Advantages

  • Better data validity
  • Can be used for varying flow conditions
  • Suitable for a wide range of flow velocities

Scope of application

Interest in the composition of our atmosphere has increased steadily in recent years. Especially with regard to the presence of environmentally harmful products such as aerosols that are emitted by power plants, industrial complexes or even vehicles. The system presented here, enables the error-free sampling of aerosols in the environment with mobile measuring platforms (e.g. vehicles, aircraft, etc.) as well as process monitoring in the field of process engineering (e.g. air conditioning, etc.) The principle presented here can be used in liquid and gaseous media.


Service

A patent has been applied for for the invention. A laboratory-scale prototype for use in aircraft-based emission measurement is currently available. However, the system shown is scalable to significantly smaller dimensions, which opens up a wide range of applications. The proof of functionality has been provided. We would be happy to inform you about the current status of the proceedings. On behalf of the Düsseldorf University of Applied Sciences, we offer interested companies the opportunity to license and further develop the technology.


PROvendis GmbH

Catherine Hartmann
+49.208 94105-46
ha@provendis.info
www.provendis.info
Address
Schloßstr. 11-15
45468 Mülheim an der Ruhr



Development status

Proof of concept


Patent situation

  • DE pending

Keywords

Environmental measurement technology, environmental protection, aerosol measurement, air conditioning, process engineering, process monitoring

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