eprintid: 5534
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/55/34
datestamp: 2023-11-09 16:17:16
lastmod: 2023-11-09 16:17:16
status_changed: 2023-11-09 16:03:07
type: conference_item
metadata_visibility: show
creators_name: Abdul-Wahhab, H.A.
creators_name: Aziz, A.R.A.
creators_name: Al-Kayiem, H.H.
creators_name: Nasif, M.S.
title: Modeling of diesel/CNG mixing in a pre-injection chamber
ispublished: pub
keywords: Computational fluid dynamics; Diesel engines; Engineering research; Liquefied gases; Mixers (machinery); Mixing; Mixtures, Combustible gas; Combustion performance; Commercial software; Computational fluid dynamics simulations; Enhanced mixing; Injection model; Mass flow ratios; Pressure ratio, Two phase flow
note: cited By 4; Conference of 3rd International Conference of Mechanical Engineering Research, ICMER 2015 ; Conference Date: 18 August 2015 Through 19 August 2015; Conference Code:119245
abstract: Diesel engines performance can be improved by adding combustible gases to the liquid diesel. In this paper, the propagation of a two phase flow liquid-gas fuel mixture into a pre-mixer is investigated numerically by computational fluid dynamics simulation. CNG was injected into the diesel within a cylindrical conduit operates as pre-mixer. Four injection models of Diesel-CNG were simulated using ANSYS-FLUENT commercial software. Two CNG jet diameters were used of 1 and 2 mm and the diesel pipe diameter was 9 mm. Two configurations were considered for the gas injection. In the first the gas was injected from one side while for the second two side entries were used. The CNG to Diesel pressure ratio was varied between 1.5 and 3. The CNG to Diesel mass flow ratios were varied between 0.7 and 0.9. The results demonstrate that using double-sided injection increased the homogeneity of the mixture due to the swirl and acceleration of the mixture. Mass fraction, in both cases, was found to increase as the mixture flows towards the exit. As a result, this enhanced mixing is likely to lead to improvement in the combustion performance.
date: 2015
publisher: Institute of Physics Publishing
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960158526&doi=10.1088%2f1757-899X%2f100%2f1%2f012044&partnerID=40&md5=5a3180b1a80efd40082aaaea12b8fbef
id_number: 10.1088/1757-899X/100/1/012044
full_text_status: none
publication: IOP Conference Series: Materials Science and Engineering
volume: 100
number: 1
refereed: TRUE
issn: 17578981
citation:   Abdul-Wahhab, H.A. and Aziz, A.R.A. and Al-Kayiem, H.H. and Nasif, M.S.  (2015) Modeling of diesel/CNG mixing in a pre-injection chamber.  In: UNSPECIFIED.