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RSS FeedsEnergies, Vol. 15, Pages 841: Energy Analysis of an Industrial Nozzle with Variable Outlet Conditions during Compressible and Transient Airflow (Energies)

 
 

24 january 2022 14:50:43

 
Energies, Vol. 15, Pages 841: Energy Analysis of an Industrial Nozzle with Variable Outlet Conditions during Compressible and Transient Airflow (Energies)
 


The nozzle which is applied in industrial pneumatic pulsators is studied. It is a part of the system for unclogging the drains and outlets of silos and hoppers for loose materials. The nozzle is required to achieve the lowest level of energy losses while directing the airflow, which impacts the loose material bed. The energy rate transferred into the bed depends on the temperature and pressure differences between the inlet and outlet of the nozzle. In this study, the available energy is determined assuming compressible and transient airflow through the nozzle, which is a part of the industrial pneumatic pulsator. Numerical simulations are performed using the OpenFOAM CFD toolbox. Energy analysis is carried out by using Reynolds Transport Theorem for specific energy for the variable temperature inside the silo on the basis of CFD results. In fact, the air parameters at the outlet of the nozzle are the ones inside the silo. The study showed that the design of the nozzle is not very sufficient from an energetic point of view.


 
67 viewsCategory: Biophysics, Biotechnology, Physics
 
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