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

Yew Heng Teoh, Hishammudin Afifi Huspi, Heoy Geok How, Farooq Sher, Zia Ud Din, Thanh Danh Le and Huu Tho Nguyen
Additional contact information
Yew Heng Teoh: School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, Malaysia
Hishammudin Afifi Huspi: School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, Malaysia
Heoy Geok How: Department of Engineering, School of Engineering, Computing and Built Environment, UOW Malaysia KDU Penang University College, 32, Jalan Anson, Georgetown 10400, Penang, Malaysia
Farooq Sher: Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK
Zia Ud Din: School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, Malaysia
Thanh Danh Le: Faculty of Mechanical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam
Huu Tho Nguyen: 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

Sustainability, 2021, vol. 13, issue 15, 1-17

Abstract: Homogeneous charge compression ignition (HCCI) is considered an advanced combustion method for internal combustion engines that offers simultaneous reductions in oxides of nitrogen (NO x ) 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.

Keywords: sustainable environment; HCCI; self-ignition; renewable fuels; low-temperature reaction; emissions and combustion (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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