Removing Dry Particles From Gas
(2017) MMK820 20162Innovation
- Abstract
- Alfdex is the market leader for high efficient solutions for removing particles from
crankcase gases in diesel engines. Alfdex aims to expand to new markets by
exploring the possibility to adapt their technology to clean the intake air of diesel
engines. When designing and developing air cleaning systems, the two most critical
parameters are the pressure drop and the cleaning efficiency. A Computational Fluid
Dynamics (CFD) model of the current disc stack centrifuge was developed.
However, the CFD model was not validated by experimental data. Thus, the
pressure investigation was inconclusive. A prototype featuring a rotating wall was
tested under different conditions to examine if the cleaning efficiency fulfil the
market... (More) - Alfdex is the market leader for high efficient solutions for removing particles from
crankcase gases in diesel engines. Alfdex aims to expand to new markets by
exploring the possibility to adapt their technology to clean the intake air of diesel
engines. When designing and developing air cleaning systems, the two most critical
parameters are the pressure drop and the cleaning efficiency. A Computational Fluid
Dynamics (CFD) model of the current disc stack centrifuge was developed.
However, the CFD model was not validated by experimental data. Thus, the
pressure investigation was inconclusive. A prototype featuring a rotating wall was
tested under different conditions to examine if the cleaning efficiency fulfil the
market requirements for air filters. The testing condition of the prototype followed
the guidelines of the ISO 5011 excepting for the choice of the contaminant that was
not Arizona dust as specified in the standard. A maximal cleaning efficiency of
96,7% was obtained at 8000 revolutions per minute (rpm) and when injecting oil in
the inlet of the centrifuge. Further design changes should be undertaken in order to
increase the cleaning efficiency to meet the market requirements. Lastly, the
economic implications of changing to a maintenance free product were discussed. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/8918197
- author
- Simon Rubin, Pascal LU
- supervisor
- organization
- alternative title
- Filter free air intake cleaner
- course
- MMK820 20162
- year
- 2017
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- disc stack centrifuge, diesel engines, air filtering
- language
- English
- id
- 8918197
- date added to LUP
- 2017-06-22 13:32:50
- date last changed
- 2017-06-22 13:32:50
@misc{8918197, abstract = {{Alfdex is the market leader for high efficient solutions for removing particles from crankcase gases in diesel engines. Alfdex aims to expand to new markets by exploring the possibility to adapt their technology to clean the intake air of diesel engines. When designing and developing air cleaning systems, the two most critical parameters are the pressure drop and the cleaning efficiency. A Computational Fluid Dynamics (CFD) model of the current disc stack centrifuge was developed. However, the CFD model was not validated by experimental data. Thus, the pressure investigation was inconclusive. A prototype featuring a rotating wall was tested under different conditions to examine if the cleaning efficiency fulfil the market requirements for air filters. The testing condition of the prototype followed the guidelines of the ISO 5011 excepting for the choice of the contaminant that was not Arizona dust as specified in the standard. A maximal cleaning efficiency of 96,7% was obtained at 8000 revolutions per minute (rpm) and when injecting oil in the inlet of the centrifuge. Further design changes should be undertaken in order to increase the cleaning efficiency to meet the market requirements. Lastly, the economic implications of changing to a maintenance free product were discussed.}}, author = {{Simon Rubin, Pascal}}, language = {{eng}}, note = {{Student Paper}}, title = {{Removing Dry Particles From Gas}}, year = {{2017}}, }