Picture Gallery

scaled model of a high dust SCR (1:12)

scaled model of a high dust SCR (1:12)

AIG and tracer gas control unit

AIG and static mixer inside the scaled model

optimized flow conditioning devices

scaled model of the SCR of a 

waste incineration plant (1:8)

Air Pre Heater (APH) in model size

scaled model of a high dust SCR (1:12) 

including APH and ESP

scaled model of a tail end plant (1:12)

flow model measurements (1:12)

flow model measurements (scale 1:10)

special ash dosing for dust test

flow model measurements (1:12)

Experimental Flow Modeling

Experimental flow modeling is one of the most reliable procedures for the hydrodynamic optimization of flow conditioning devices and static mixers. Our competence in this field is based on 10 years of experience. CFD simulations are frequently performed in parallel to the experimental tests.

The spacious Flowtech laboratory in Winterthur, Switzerland, allows us to storage and test up to ten flow models at the same time. Size and shape of the scaled ductwork models are engineered in cooperation with the costumer. On this basis, flow conditioning and mixing devices are reproduced and tested with the aim of fulfilling the application-specific requirements.

Application examples are listed below.

- catalysts
- scrubbers

- reactors

- heat exchangers

- duct burners

- mixers

- filters, baghouses, and electrostatic precipitators

- boilers

- gas turbines

- diesel engines

The model scale is dependent on the size of the real, full size plant and is usually set to be 1:4 - 1:18. Velocity and tracer gas measurements provide the necessary data for modifying the internal devices to reach an optimum performance. Fly ash and particle accumulations are detected and eliminated with help of flow conditioning devices and/or by adapting the ductwork design.

The pictures below show extensive ash deposits inside the ducts of a high dust SCR plant. They can be avoided by adopting adequate measures determined in a flow model study.
  

In the following picture, real pop-corn-ash is illustrated. If the devices which isolate these large size particles from the flue gas are not properly tested, the risk of a catalyst reactor pluggage is high.

real catalyst (clean)

For more information please don't hesitate to contact us at any time: hug@flowte.ch

scaled ESP model (1:12)

flow model of two baghouses (1:12)