The combustion behavior of diesel/CNG mixtures in a constant volume combustion chamber

The stringent emissions and needs to increase fuel efficiency makes controlled auto-ignition (CAI) based combustion an attractive alternative for the new combustion system. However, the combustion control is the main obstacles in its development. Reactivity controlled compression ignition (RCCI) tha...

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Main Authors: Firmansyah,, Aziz, A.R.A., Heikal, M.R.
Format: Conference or Workshop Item
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.26155 /
Published: Institute of Physics Publishing 2015
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960145979&doi=10.1088%2f1757-899X%2f100%2f1%2f012032&partnerID=40&md5=fdd765abee112dff5037fb78fc8de900
http://eprints.utp.edu.my/26155/
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spelling utp-eprints.261552021-08-30T08:53:25Z The combustion behavior of diesel/CNG mixtures in a constant volume combustion chamber Firmansyah, Aziz, A.R.A. Heikal, M.R. The stringent emissions and needs to increase fuel efficiency makes controlled auto-ignition (CAI) based combustion an attractive alternative for the new combustion system. However, the combustion control is the main obstacles in its development. Reactivity controlled compression ignition (RCCI) that employs two fuels with significantly different in reactivity proven to be able to control the combustion. The RCCI concept applied in a constant volume chamber fueled with direct injected diesel and compressed natural gas (CNG) was tested. The mixture composition is varied from 0 - 100 diesel/CNG at lambda 1 with main data collection is pressure profile and combustion images. The results show that diesel-CNG mixture significantly shows better combustion compared to diesel only. It is found that CNG is delaying the diesel combustion and at the same time assisting in diesel distribution inside the chamber. This combination creates a multipoint ignition of diesel throughout the chamber that generates very fast heat release rate and higher maximum pressure. Furthermore, lighter yellow color of the flame indicates lower soot production in compared with diesel combustion. Institute of Physics Publishing 2015 Conference or Workshop Item NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960145979&doi=10.1088%2f1757-899X%2f100%2f1%2f012032&partnerID=40&md5=fdd765abee112dff5037fb78fc8de900 Firmansyah, and Aziz, A.R.A. and Heikal, M.R. (2015) The combustion behavior of diesel/CNG mixtures in a constant volume combustion chamber. In: UNSPECIFIED. http://eprints.utp.edu.my/26155/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description The stringent emissions and needs to increase fuel efficiency makes controlled auto-ignition (CAI) based combustion an attractive alternative for the new combustion system. However, the combustion control is the main obstacles in its development. Reactivity controlled compression ignition (RCCI) that employs two fuels with significantly different in reactivity proven to be able to control the combustion. The RCCI concept applied in a constant volume chamber fueled with direct injected diesel and compressed natural gas (CNG) was tested. The mixture composition is varied from 0 - 100 diesel/CNG at lambda 1 with main data collection is pressure profile and combustion images. The results show that diesel-CNG mixture significantly shows better combustion compared to diesel only. It is found that CNG is delaying the diesel combustion and at the same time assisting in diesel distribution inside the chamber. This combination creates a multipoint ignition of diesel throughout the chamber that generates very fast heat release rate and higher maximum pressure. Furthermore, lighter yellow color of the flame indicates lower soot production in compared with diesel combustion.
format Conference or Workshop Item
author Firmansyah,
Aziz, A.R.A.
Heikal, M.R.
spellingShingle Firmansyah,
Aziz, A.R.A.
Heikal, M.R.
The combustion behavior of diesel/CNG mixtures in a constant volume combustion chamber
author_sort Firmansyah,
title The combustion behavior of diesel/CNG mixtures in a constant volume combustion chamber
title_short The combustion behavior of diesel/CNG mixtures in a constant volume combustion chamber
title_full The combustion behavior of diesel/CNG mixtures in a constant volume combustion chamber
title_fullStr The combustion behavior of diesel/CNG mixtures in a constant volume combustion chamber
title_full_unstemmed The combustion behavior of diesel/CNG mixtures in a constant volume combustion chamber
title_sort combustion behavior of diesel/cng mixtures in a constant volume combustion chamber
publisher Institute of Physics Publishing
publishDate 2015
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960145979&doi=10.1088%2f1757-899X%2f100%2f1%2f012032&partnerID=40&md5=fdd765abee112dff5037fb78fc8de900
http://eprints.utp.edu.my/26155/
_version_ 1741197092087398400
score 11.62408

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