Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy

Claims are furnished in several patents that swirling the intake air in SI engines can improve fuel economy and reduce environmental impact. In this paper, we investigate the effect of a free rotating air swirling device (FRASD) installed in the air intake hose on the overall performance and emissio...

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Main Authors:	Kafafy, Raed Ismail, Che Mat, Sharzali
Format:	Article
Language:	English
Published:	Inderscience Enterprises Ltd. 2011
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://irep.iium.edu.my/17244/ http://irep.iium.edu.my/17244/ http://irep.iium.edu.my/17244/ http://irep.iium.edu.my/17244/1/Assessment_of_free-rotating_air_swirling_device_to.pdf

id	iium-17244
recordtype	eprints
spelling	iium-172442012-03-14T06:58:28Z http://irep.iium.edu.my/17244/ Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy Kafafy, Raed Ismail Che Mat, Sharzali TA Engineering (General). Civil engineering (General) Claims are furnished in several patents that swirling the intake air in SI engines can improve fuel economy and reduce environmental impact. In this paper, we investigate the effect of a free rotating air swirling device (FRASD) installed in the air intake hose on the overall performance and emission characteristics of an SI engine. FRASDs with three vane angles were tested; 6, 9 and 12 degrees. The baseline engine was tested without FRASD at selected loads. Then, the engine was tested at the same loads with each FRASD and results were compared with the baseline engine. Experiments show that all tested FRASDs exhibit some degree of enhancement in the overall performance and reduction in exhaust emissions. It was found that enhancement greatly depends on the engine operating condition in addition to the FRASD vane angle. Specifically, best enhancement in performance and highest reduction in emissions was observed with the 9-degrees which reduced specific fuel consumption by 12%, hydrocarbon (HC) emissions by 20% and carbon monoxide emissions by 12%. Suggestions are made to modify the FRASD design to magnify its impact on engine performance. Inderscience Enterprises Ltd. 2011 Article PeerReviewed application/pdf en http://irep.iium.edu.my/17244/1/Assessment_of_free-rotating_air_swirling_device_to.pdf Kafafy, Raed Ismail and Che Mat, Sharzali (2011) Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy. International Journal of Vehicle Systems Modelling and Testing, 6 (3/4). pp. 283-306. ISSN 1745-6444 (O), 1745-6436 (P) http://www.inderscience.com/search/index.php?action=record&rec_id=44230 10.1504/IJVSMT.2011.044230
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Kafafy, Raed Ismail Che Mat, Sharzali Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy
description	Claims are furnished in several patents that swirling the intake air in SI engines can improve fuel economy and reduce environmental impact. In this paper, we investigate the effect of a free rotating air swirling device (FRASD) installed in the air intake hose on the overall performance and emission characteristics of an SI engine. FRASDs with three vane angles were tested; 6, 9 and 12 degrees. The baseline engine was tested without FRASD at selected loads. Then, the engine was tested at the same loads with each FRASD and results were compared with the baseline engine. Experiments show that all tested FRASDs exhibit some degree of enhancement in the overall performance and reduction in exhaust emissions. It was found that enhancement greatly depends on the engine operating condition in addition to the FRASD vane angle. Specifically, best enhancement in performance and highest reduction in emissions was observed with the 9-degrees which reduced specific fuel consumption by 12%, hydrocarbon (HC) emissions by 20% and carbon monoxide emissions by 12%. Suggestions are made to modify the FRASD design to magnify its impact on engine performance.
format	Article
author	Kafafy, Raed Ismail Che Mat, Sharzali
author_facet	Kafafy, Raed Ismail Che Mat, Sharzali
author_sort	Kafafy, Raed Ismail
title	Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy
title_short	Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy
title_full	Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy
title_fullStr	Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy
title_full_unstemmed	Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy
title_sort	assessment of free-rotating air swirling device to reduce si engine emissions and improve fuel economy
publisher	Inderscience Enterprises Ltd.
publishDate	2011
url	http://irep.iium.edu.my/17244/ http://irep.iium.edu.my/17244/ http://irep.iium.edu.my/17244/ http://irep.iium.edu.my/17244/1/Assessment_of_free-rotating_air_swirling_device_to.pdf
first_indexed	2023-09-18T20:26:03Z
last_indexed	2023-09-18T20:26:03Z
_version_	1777408424091320320

Assessment of free-rotating air swirling device to reduce SI engine emissions and improve fuel economy

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