書誌事項
- タイトル別名
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- On a Novel Diffuser for Efficient Automotive Catalytic Converters
- コウコウリツ ジドウシャヨウ ショクバイ コンバータ ノ タメノ アタラシイ ディフューザ
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In automobile-exhaust systems, catalytic converters are main components and produce substantial pressure drops, which induce engine-power loss and fuel-consumption rise. On the other hand, catalytic converters are required for the uniformity of flow through a catalytic substrate, which causes uniformity of thermal distribution and high catalytic-conversion efficiency. The purpose of this study is to reduce the pressure losses and to improve the flow distribution simultaneously, under spatial constraints. The authors propose a new type of device and show its performance experimentally. Namely, the authors place a dome as a flow deflector inside the diffuser in front of a catalyst in order to suppress flow separation. The converter tested in the present study has a standard cylindrical ceramic substrate with a circular cross section. As a result, we present the optimum dome geometry that can reduce the pressure loss by 22% as compared to a no-dome converter.
収録刊行物
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- 日本機械学会論文集B編
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日本機械学会論文集B編 73 (728), 996-1001, 2007
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282681239405440
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- NII論文ID
- 130004226088
- 110006250946
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- NII書誌ID
- AN00187441
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- ISSN
- 18848346
- 03875016
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- NDL書誌ID
- 8805830
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可