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Experimental Investigation on SI Engine Emissions via EGR and catalytic converter with air injection mechanism / MVS Murali Krishna...[et al.]

Exhaust emissions emitted from spark ignition engines cause air pollution, human health hazards and ecological imbalance. Hence, effective curtail of these is an essential task. For this, an experimental evaluation was carried out on emissions and performance characteristics of the four-stroke three...

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Main Authors: MVS Murali, Krishna,, Kumar, S Narasimha, Kolli, Vamsi Krishna, Sreeram, Barathula
Format: Article
Language:English
Published: Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2018
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://ir.uitm.edu.my/id/eprint/36341/1/36341.pdf
http://ir.uitm.edu.my/id/eprint/36341/
https://jmeche.uitm.edu.my/
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spelling my.uitm.ir.363412020-11-09T04:00:11Z http://ir.uitm.edu.my/id/eprint/36341/ Experimental Investigation on SI Engine Emissions via EGR and catalytic converter with air injection mechanism / MVS Murali Krishna...[et al.] MVS Murali, Krishna, Kumar, S Narasimha Kolli, Vamsi Krishna Sreeram, Barathula TJ Mechanical engineering and machinery Exhaust emissions emitted from spark ignition engines cause air pollution, human health hazards and ecological imbalance. Hence, effective curtail of these is an essential task. For this, an experimental evaluation was carried out on emissions and performance characteristics of the four-stroke three-cylinder Maruthi engine at varied brake power. Three different techniques, initially the exhaust gas recirculation (EGR) system was coupled to the test engine and varied from 0 to 10% for estimation of optimal value. Secondly, the provision of the catalytic converter with the copper as a catalyst and finally by the air injection mechanism of 60 l/m into the catalytic converter is executed and evaluated for optimum emission reduction. Also, the combined effect of these techniques on the characteristics was analysed. From the results, it was found that up to an EGR rate of 5%, an enhancement of 2% in brake thermal efficiency and a reduction of 9.5% in brake specific fuel consumption, 21% in carbon monoxide (CO), 19% in un-burnt hydrocarbon (UHC) and 29% in NOx emissions and a further increase in the EGR rate causes performance deterioration. The NOx emissions decreased by 44% at 7% of EGR. The catalytic converter setup alone decreased CO and UHC by 40% and by application of air injection it was 60%. The CO& UHC emissions decreased by 54% &52% respectively at 7% EGR rate combined with the catalytic converter and air injection mechanism. Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2018 Article PeerReviewed text en http://ir.uitm.edu.my/id/eprint/36341/1/36341.pdf MVS Murali, Krishna, and Kumar, S Narasimha and Kolli, Vamsi Krishna and Sreeram, Barathula (2018) Experimental Investigation on SI Engine Emissions via EGR and catalytic converter with air injection mechanism / MVS Murali Krishna...[et al.]. Journal of Mechanical Engineering (JMechE), 16 (1). pp. 33-46. ISSN 1823-5514 ; 2550-164X https://jmeche.uitm.edu.my/
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
MVS Murali, Krishna,
Kumar, S Narasimha
Kolli, Vamsi Krishna
Sreeram, Barathula
Experimental Investigation on SI Engine Emissions via EGR and catalytic converter with air injection mechanism / MVS Murali Krishna...[et al.]
description Exhaust emissions emitted from spark ignition engines cause air pollution, human health hazards and ecological imbalance. Hence, effective curtail of these is an essential task. For this, an experimental evaluation was carried out on emissions and performance characteristics of the four-stroke three-cylinder Maruthi engine at varied brake power. Three different techniques, initially the exhaust gas recirculation (EGR) system was coupled to the test engine and varied from 0 to 10% for estimation of optimal value. Secondly, the provision of the catalytic converter with the copper as a catalyst and finally by the air injection mechanism of 60 l/m into the catalytic converter is executed and evaluated for optimum emission reduction. Also, the combined effect of these techniques on the characteristics was analysed. From the results, it was found that up to an EGR rate of 5%, an enhancement of 2% in brake thermal efficiency and a reduction of 9.5% in brake specific fuel consumption, 21% in carbon monoxide (CO), 19% in un-burnt hydrocarbon (UHC) and 29% in NOx emissions and a further increase in the EGR rate causes performance deterioration. The NOx emissions decreased by 44% at 7% of EGR. The catalytic converter setup alone decreased CO and UHC by 40% and by application of air injection it was 60%. The CO& UHC emissions decreased by 54% &52% respectively at 7% EGR rate combined with the catalytic converter and air injection mechanism.
format Article
author MVS Murali, Krishna,
Kumar, S Narasimha
Kolli, Vamsi Krishna
Sreeram, Barathula
author_facet MVS Murali, Krishna,
Kumar, S Narasimha
Kolli, Vamsi Krishna
Sreeram, Barathula
author_sort MVS Murali, Krishna,
title Experimental Investigation on SI Engine Emissions via EGR and catalytic converter with air injection mechanism / MVS Murali Krishna...[et al.]
title_short Experimental Investigation on SI Engine Emissions via EGR and catalytic converter with air injection mechanism / MVS Murali Krishna...[et al.]
title_full Experimental Investigation on SI Engine Emissions via EGR and catalytic converter with air injection mechanism / MVS Murali Krishna...[et al.]
title_fullStr Experimental Investigation on SI Engine Emissions via EGR and catalytic converter with air injection mechanism / MVS Murali Krishna...[et al.]
title_full_unstemmed Experimental Investigation on SI Engine Emissions via EGR and catalytic converter with air injection mechanism / MVS Murali Krishna...[et al.]
title_sort experimental investigation on si engine emissions via egr and catalytic converter with air injection mechanism / mvs murali krishna...[et al.]
publisher Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM)
publishDate 2018
url http://ir.uitm.edu.my/id/eprint/36341/1/36341.pdf
http://ir.uitm.edu.my/id/eprint/36341/
https://jmeche.uitm.edu.my/
_version_ 1685651391592267776
score 13.211869

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