Spray characteristics of diesel-CNG dual fuel jet using schlieren imaging technique

Natural gas is a low cost fuel with high availability in nature. However, it cannot be used by itself in conventional diesel engines due to its low flame speed and high ignition temperature. The addition of a secondary fuel to enhance the mixture formation and combustion process facilitate its wider...

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Main Authors: Ismael, M.A., Heikal, M.R., Bahroom, M.B.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.31817 /
Published: Trans Tech Publications Ltd 2014
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84922012393&doi=10.4028%2fwww.scientific.net%2fAMM.663.58&partnerID=40&md5=30b17d6a4e32fdddcd0cfe919692c146
http://eprints.utp.edu.my/31817/
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spelling utp-eprints.318172022-03-29T03:28:42Z Spray characteristics of diesel-CNG dual fuel jet using schlieren imaging technique Ismael, M.A. Heikal, M.R. Bahroom, M.B. Natural gas is a low cost fuel with high availability in nature. However, it cannot be used by itself in conventional diesel engines due to its low flame speed and high ignition temperature. The addition of a secondary fuel to enhance the mixture formation and combustion process facilitate its wider use as an alternative fuel. An experimental study was performed to investigate the diesel- CNG dual fuel jet characteristics such as: jet tip penetration, jet cone angle and jet tip velocity. A constant-volume optical chamber was designed to facilitate maximum optical access for the study of the jet macroscopic characteristics at different injection pressures and temperatures. The bottom plate of the test rig was made of aluminum (piston material) and it was heated up to 500 K at ambient pressure. An injector driver was used to control the single-hole nozzle diesel injector combined with a natural gas injector. The injection timing of both injectors were synchronized with a camera trigger. Macroscopic properties of diesel and diesel-CNG dual fuel jets were recorded with a high speed camera using the Schlieren imaging technique and associated image processing. Measurements of the jet characteristics of diesel and diesel-CNG dual fuel are compared together under evaporative and non-evaporative conditions as well as different injection pressures are presented in this paper. © (2014) Trans Tech Publications, Switzerland. Trans Tech Publications Ltd 2014 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84922012393&doi=10.4028%2fwww.scientific.net%2fAMM.663.58&partnerID=40&md5=30b17d6a4e32fdddcd0cfe919692c146 Ismael, M.A. and Heikal, M.R. and Bahroom, M.B. (2014) Spray characteristics of diesel-CNG dual fuel jet using schlieren imaging technique. Applied Mechanics and Materials, 663 . pp. 58-63. http://eprints.utp.edu.my/31817/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Natural gas is a low cost fuel with high availability in nature. However, it cannot be used by itself in conventional diesel engines due to its low flame speed and high ignition temperature. The addition of a secondary fuel to enhance the mixture formation and combustion process facilitate its wider use as an alternative fuel. An experimental study was performed to investigate the diesel- CNG dual fuel jet characteristics such as: jet tip penetration, jet cone angle and jet tip velocity. A constant-volume optical chamber was designed to facilitate maximum optical access for the study of the jet macroscopic characteristics at different injection pressures and temperatures. The bottom plate of the test rig was made of aluminum (piston material) and it was heated up to 500 K at ambient pressure. An injector driver was used to control the single-hole nozzle diesel injector combined with a natural gas injector. The injection timing of both injectors were synchronized with a camera trigger. Macroscopic properties of diesel and diesel-CNG dual fuel jets were recorded with a high speed camera using the Schlieren imaging technique and associated image processing. Measurements of the jet characteristics of diesel and diesel-CNG dual fuel are compared together under evaporative and non-evaporative conditions as well as different injection pressures are presented in this paper. © (2014) Trans Tech Publications, Switzerland.
format Article
author Ismael, M.A.
Heikal, M.R.
Bahroom, M.B.
spellingShingle Ismael, M.A.
Heikal, M.R.
Bahroom, M.B.
Spray characteristics of diesel-CNG dual fuel jet using schlieren imaging technique
author_sort Ismael, M.A.
title Spray characteristics of diesel-CNG dual fuel jet using schlieren imaging technique
title_short Spray characteristics of diesel-CNG dual fuel jet using schlieren imaging technique
title_full Spray characteristics of diesel-CNG dual fuel jet using schlieren imaging technique
title_fullStr Spray characteristics of diesel-CNG dual fuel jet using schlieren imaging technique
title_full_unstemmed Spray characteristics of diesel-CNG dual fuel jet using schlieren imaging technique
title_sort spray characteristics of diesel-cng dual fuel jet using schlieren imaging technique
publisher Trans Tech Publications Ltd
publishDate 2014
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84922012393&doi=10.4028%2fwww.scientific.net%2fAMM.663.58&partnerID=40&md5=30b17d6a4e32fdddcd0cfe919692c146
http://eprints.utp.edu.my/31817/
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score 11.62408