Bookcover of Automotive exhaust systems with close-coupled catalysts
Booktitle:

Automotive exhaust systems with close-coupled catalysts

Optimal design rules based on catalyst flow distribution and manifold gas dynamics

LAP LAMBERT Academic Publishing (2010-02-08 )

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ISBN-13:

978-3-8383-4461-4

ISBN-10:
3838344618
EAN:
9783838344614
Book language:
English
Blurb/Shorttext:
Increasingly stringent vehicle emissions legislation has lead to the integration of catalytic converters into the automotive exhaust manifold. A uniform catalyst flow distribution is crucial to minimize pollutant emission and pressure loss, and avoid catalyst degradation. This work establishes objective design criteria for these systems. The methodology enables high-resolution velocity measurements in the manifold, using a charged engine flow rig and oscillating hot wire anemometer. Experiments reveal local flow reversal and strong resonance fluctuations. Numerical models predict the flow dynamics beyond the scope of the experiments, and help to understand the gas dynamic resonances. The book explains how steady-state flow simulations can accurately predict transient flow in a fired engine. Design criteria are formulated for catalyst manifolds, predicting the collector efficiency in terms of flow uniformity from an early conceptual stage. The literature review, methodology and findings of this book are relevant for academic and industrial engineers interested specifically in automotive catalyst research and design, or experimental fluid dynamics in general.
Publishing house:
LAP LAMBERT Academic Publishing
Website:
https://www.lap-publishing.com/
By (author) :
Tim Persoons
Number of pages:
316
Published at:
2010-02-08
Stock:
Available
Category:
Vehicles, Aircraft, Ships, space travel
Price:
79.00 €
Keywords:
catalyst, Degradation, exhaust manifold, flow uniformity, gas dynamics, hot wire anemometry, Velocimetry, experimental fluid dynamics

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