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Article

Effect of Intake Air Temperature and Premixed Ratio on Combustion and Exhaust Emissions in a Partial HCCI-DI Diesel Engine

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School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, Malaysia
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Department of Engineering, School of Engineering, Computing and Built Environment, UOW Malaysia KDU Penang University College, 32, Jalan Anson, Georgetown 10400, Penang, Malaysia
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Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK
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Faculty of Mechanical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam
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Department of Fundamentals of Mechanical Engineering, Faculty of Automotive, Mechanical, Electrical and Electronic Engineering (FAME), An Phu Dong Campus, Nguyen Tat Thanh University, Ho Chi Minh City 729800, Vietnam
*
Authors to whom correspondence should be addressed.
Academic Editors: Vincenzo Torretta and Elena Rada
Sustainability 2021, 13(15), 8593; https://0-doi-org.brum.beds.ac.uk/10.3390/su13158593
Received: 23 June 2021 / Revised: 16 July 2021 / Accepted: 24 July 2021 / Published: 1 August 2021
Homogeneous charge compression ignition (HCCI) is considered an advanced combustion method for internal combustion engines that offers simultaneous reductions in oxides of nitrogen (NOx) emissions and increased fuel efficiency. The present study examines the influence of intake air temperature (IAT) and premixed diesel fuel on fuel self-ignition characteristics in a light-duty compression ignition engine. Partial HCCI was achieved by port injection of the diesel fuel through air-assisted injection while sustaining direct diesel fuel injection into the cylinder for initiating combustion. The self-ignition of diesel fuel under such a set-up was studied with variations in premixed ratios (0–0.60) and inlet temperatures (40–100 °C) under a constant 1600 rpm engine speed with 20 Nm load. Variations in performance, emissions and combustion characteristics with premixed fuel and inlet air heating were analysed in comparison with those recorded without. Heat release rate profiles determined from recorded in-cylinder pressure depicted evident multiple-stage ignitions (up to three-stage ignition in several cases) in this study. Compared with the premixed ratio, the inlet air temperature had a greater effect on low-temperature reaction and HCCI combustion timing. Nonetheless, an increase in the premixed ratio was found to be influential in reducing nitric oxides emissions. View Full-Text
Keywords: sustainable environment; HCCI; self-ignition; renewable fuels; low-temperature reaction; emissions and combustion sustainable environment; HCCI; self-ignition; renewable fuels; low-temperature reaction; emissions and combustion
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MDPI and ACS Style

Teoh, Y.H.; Huspi, H.A.; How, H.G.; Sher, F.; Din, Z.U.; Le, T.D.; Nguyen, H.T. Effect of Intake Air Temperature and Premixed Ratio on Combustion and Exhaust Emissions in a Partial HCCI-DI Diesel Engine. Sustainability 2021, 13, 8593. https://0-doi-org.brum.beds.ac.uk/10.3390/su13158593

AMA Style

Teoh YH, Huspi HA, How HG, Sher F, Din ZU, Le TD, Nguyen HT. Effect of Intake Air Temperature and Premixed Ratio on Combustion and Exhaust Emissions in a Partial HCCI-DI Diesel Engine. Sustainability. 2021; 13(15):8593. https://0-doi-org.brum.beds.ac.uk/10.3390/su13158593

Chicago/Turabian Style

Teoh, Yew H., Hishammudin A. Huspi, Heoy G. How, Farooq Sher, Zia U. Din, Thanh D. Le, and Huu T. Nguyen 2021. "Effect of Intake Air Temperature and Premixed Ratio on Combustion and Exhaust Emissions in a Partial HCCI-DI Diesel Engine" Sustainability 13, no. 15: 8593. https://0-doi-org.brum.beds.ac.uk/10.3390/su13158593

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