Model & approach
- Represent multiple installation positions as CFD variants
- Compare volume flow and pressure distribution through the shaft
- Assess local restrictions and unfavorable inlet flow
Project / Power-generation equipment
Muffler placement within an exhaust shaft
Several installation positions were compared using volume flow and back pressure through the exhaust shaft.
Engineering question
The muffler needed a position that did not impose unacceptable restriction on flow through the shaft.
Boundary conditions
- Existing shaft and available installation positions
- Back pressure and airflow as selection criteria
- Acoustic performance outside the described CFD model
Results of the assessment
- Installation position changed the resistance of the complete shaft.
- One variant provided the preferred balance between packaging and flow resistance.
- One of the assessed positions was selected as the preferred system configuration.
Engineering consequence
The preferred position was carried into further design; acoustic requirements require a separate assessment.
Context
The project account provides no absolute pressure, flow or sound values.
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