Effects of air intake pressure to the fuel economy and exhaust emissions on a small SI engine

This study discusses on the fuel economy and exhaust emissions at variations of air intake pressure. The air intake pressure is influenced by the degree of opening throttle plate and venturi effect which draw the fuel to the combustion chamber in carbureted engine. The experimental work is conducted...

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Main Authors: Nik Rosli, Abdullah, Nafis Syabil, Shahruddin, Aman Mohd. Ihsan, Mamat, Salmiah, Kasolang, Aminuddin, Zulkifli, R., Mamat
Format: Article
Language:English
Published: Elsevier Ltd 2013
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/25372/1/Effects%20of%20air%20intake%20pressure%20to%20the%20fuel%20economy.pdf
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author Nik Rosli, Abdullah
Nafis Syabil, Shahruddin
Aman Mohd. Ihsan, Mamat
Salmiah, Kasolang
Aminuddin, Zulkifli
R., Mamat
author_facet Nik Rosli, Abdullah
Nafis Syabil, Shahruddin
Aman Mohd. Ihsan, Mamat
Salmiah, Kasolang
Aminuddin, Zulkifli
R., Mamat
author_sort Nik Rosli, Abdullah
collection UMP
description This study discusses on the fuel economy and exhaust emissions at variations of air intake pressure. The air intake pressure is influenced by the degree of opening throttle plate and venturi effect which draw the fuel to the combustion chamber in carbureted engine. The experimental work is conducted at variations of engine speed and load using a single cylinder four stroke SI engine attached with 5 kW dynamometer. Gas analyzer was used to measure exhaust emissions compositions and to identify the quality of combustion. The results show that the standard air intake system resulted in rich combustion which led to the incomplete combustion due to less availability of air. By eliminating the air filter, the air flow restriction through the air intake system was reduced. Hence, better combustion and less unburned components are achieved because of higher air availability. A higher air intake pressure is required to increase air density in allowing for better combustion within a limited time to improve fuel economy, power output and exhaust emissions. Complete combustion also lead to the reduction of unburned components such as carbon (C), hydrogen (H2), carbon monoxide (CO) and hydroxide (OH) that resulted in less hazardous emissions.
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spelling UMPir253722019-10-10T07:29:39Z http://umpir.ump.edu.my/id/eprint/25372/ Effects of air intake pressure to the fuel economy and exhaust emissions on a small SI engine Nik Rosli, Abdullah Nafis Syabil, Shahruddin Aman Mohd. Ihsan, Mamat Salmiah, Kasolang Aminuddin, Zulkifli R., Mamat TJ Mechanical engineering and machinery This study discusses on the fuel economy and exhaust emissions at variations of air intake pressure. The air intake pressure is influenced by the degree of opening throttle plate and venturi effect which draw the fuel to the combustion chamber in carbureted engine. The experimental work is conducted at variations of engine speed and load using a single cylinder four stroke SI engine attached with 5 kW dynamometer. Gas analyzer was used to measure exhaust emissions compositions and to identify the quality of combustion. The results show that the standard air intake system resulted in rich combustion which led to the incomplete combustion due to less availability of air. By eliminating the air filter, the air flow restriction through the air intake system was reduced. Hence, better combustion and less unburned components are achieved because of higher air availability. A higher air intake pressure is required to increase air density in allowing for better combustion within a limited time to improve fuel economy, power output and exhaust emissions. Complete combustion also lead to the reduction of unburned components such as carbon (C), hydrogen (H2), carbon monoxide (CO) and hydroxide (OH) that resulted in less hazardous emissions. Elsevier Ltd 2013 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25372/1/Effects%20of%20air%20intake%20pressure%20to%20the%20fuel%20economy.pdf Nik Rosli, Abdullah and Nafis Syabil, Shahruddin and Aman Mohd. Ihsan, Mamat and Salmiah, Kasolang and Aminuddin, Zulkifli and R., Mamat (2013) Effects of air intake pressure to the fuel economy and exhaust emissions on a small SI engine. Procedia Engineering, 68. pp. 278-284. ISSN 1877-7058. (Published) https://doi.org/10.1016/j.proeng.2013.12.180 https://doi.org/10.1016/j.proeng.2013.12.180
spellingShingle TJ Mechanical engineering and machinery
Nik Rosli, Abdullah
Nafis Syabil, Shahruddin
Aman Mohd. Ihsan, Mamat
Salmiah, Kasolang
Aminuddin, Zulkifli
R., Mamat
Effects of air intake pressure to the fuel economy and exhaust emissions on a small SI engine
title Effects of air intake pressure to the fuel economy and exhaust emissions on a small SI engine
title_full Effects of air intake pressure to the fuel economy and exhaust emissions on a small SI engine
title_fullStr Effects of air intake pressure to the fuel economy and exhaust emissions on a small SI engine
title_full_unstemmed Effects of air intake pressure to the fuel economy and exhaust emissions on a small SI engine
title_short Effects of air intake pressure to the fuel economy and exhaust emissions on a small SI engine
title_sort effects of air intake pressure to the fuel economy and exhaust emissions on a small si engine
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/25372/1/Effects%20of%20air%20intake%20pressure%20to%20the%20fuel%20economy.pdf
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