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Proceedings ArticleDOI

The Ignition Delay Period in Dual Fuel Engines

01 Feb 1995-SAE transactions (Society of Automotive Engineers)-Vol. 104, Iss: 4, pp 354-362
About: This article is published in SAE transactions.The article was published on 1995-02-01. It has received 77 citations till now. The article focuses on the topics: Engine knocking & Brake specific fuel consumption.
Citations
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Journal ArticleDOI
TL;DR: In this paper, the main effort needed to overcome the problems associated with the operation of gas fueled dual fuel engines is via a better control of the relatively complex processes of combustion, and experimental and analytical modeling procedures for effecting optimum improvement to the combustion process are described.
Abstract: In the dual fuel engine much of the energy release comes from the combustion of the gaseous fuel white only a small amount of diesel liquid fuel provides ignition through timed cylinder injection. Such operation with optimum conversion methods has the potential to provide operational characteristics that are comparable or superior to those of the corresponding diesel or spark ignition engines. There characteristics may be realized only if sufficiently effective measures can be ensured both for the avoidance of knock, usually at high loads, and incomplete gaseous fuel utilization at relatively light loads. An objective of this contribution is to demonstrate that the main effort needed to overcome the problems associated with the operation of gas fueled dual fuel engines is via a better control of the relatively complex processes of combustion. Both experimental and analytical modeling procedures for effecting optimum improvement to the combustion process are described.

273 citations

Journal ArticleDOI
TL;DR: In this article, the authors survey some of the relevant published work on the use of synthesis gas in IC engines, highlighting recent work on dual-fuel (syngas + diesel) combustion.
Abstract: The combustion of synthesis gas will play an important role in advanced power systems based on the gasification of fuel feedstocks and combined cycle power production. While the most commonly discussed option is to burn syngas in gas turbine engines, another possibility is to burn the syngas in stationary reciprocating engines. Whether spark ignited or compression ignited, syngas could serve to power large bore stationary engines, such as those presently operated on natural gas. To date, however, there has been little published on the combustion of syngas in reciprocating engines. One area that has received attention is dual-fueled diesel combustion, using a combination of diesel pilot injection and syngas fumigation in the intake air. In this article, we survey some of the relevant published work on the use of synthesis gas in IC engines, highlighting recent work on dual-fuel (syngas + diesel) combustion.

115 citations


Cites methods from "The Ignition Delay Period in Dual F..."

  • ...Arrhenius Equation Approach Ignition delay ID models dedicated to diesel or dual-fuel are based on Arrhenius equation [c.f., Aligrot et al. (1997), Assanis et al. (1999), Heywood (1988), Liu and Karim (1995), or Ramos (1989)]....

    [...]

Book
02 Mar 2015
TL;DR: A comprehensive and well-integrated review of the relevant fundamentals and practices of the operation of gas-fueled compression ignition engines of the dual-fuel type is given in this paper.
Abstract: www.taylorandfrancisgroup.com K24645 “... a comprehensive and well-integrated review of the relevant fundamentals and practices of the operation of gas-fueled compression ignition engines of the dual-fuel type. ... a very well-written book featuring interesting, reach-in information covering important topics of internal combustion engines not covered yet in a single book. ... excellent, up-to-date. ... a very good and unique source of information. ... The book reviews the latest and possible future developments in the area of dual-fuel engines.”

100 citations

Journal ArticleDOI
01 Mar 1997
TL;DR: In this article, a thermodynamic multizone model incorporating detailed kinetic schemes was developed for the prediction of the combustion processes in dual-fuel engines and some of their performance performance.
Abstract: A thermodynamic multizone model incorporating detailed kinetic schemes has been developed for the prediction of the combustion processes in dual-fuel engines and some of their performance f...

84 citations

Journal ArticleDOI
TL;DR: In this paper, experiments were performed on 4 cylinder turbocharged, intercooled with 62.5kW gen-set diesel engine by using hydrogen, liquefied petroleum gas (LPG) and mixture of LPG and hydrogen as secondary fuels.

81 citations

References
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Journal ArticleDOI
01 Jan 1989
TL;DR: In this paper, a detailed chemical reaction mechanism is developed to describe the oxidation of n -heptane, iso-octane, and their mixtures over a wide range of operating conditions.
Abstract: A detailed chemical kinetic reaction mechanism is developed to describe the oxidation of n -heptane, iso-octane, and their mixtures over a wide range of operating conditions. In addition to a high temperature submechanism, reaction paths are included to describe the lower temperature regimes in which the rate and intermediate products of oxidation are controlled by addition of molecular oxygen to alkyl and isomerized alkylperoxy radicals, internal H atom abstractions, and reactions involving O-heterocyclic species. This overall reaction mechanism is validated through comparisons between computed results and experimental data from shock tubes, turbulent flow reactor, and low temperature static and stirred reactors. The mechanism is then used to study the influence of fuel composition on knocking in internal combustion engines. Autoignition of mixtures of iso-octane and n -heptane is examined, in which experimentally measured variations of engine pressure with time were used to simulate the conditions encountered by the end-gases responsible for knocking operation. The computations reproduce the variations of autoignition delay time with octane number and these variations are interpreted in terms of detailed differences in the structure of the two primary reference fuels. Sensitivity analyses of the computations are presented, indicating those portions of the reaction mechanisms which have the greatest influence on the model results.

211 citations

Proceedings ArticleDOI
01 Sep 1989

53 citations

Proceedings ArticleDOI
TL;DR: In this paper, a detailed chemical kinetic mechanism was used to simulate the oxidation of 1-butene, 2butene and isobutene under motored engine conditions, and the predicted species concentrations were compared to measured species concentrations obtained from a motored, single-cylinder engine.
Abstract: A detailed chemical kinetic mechanism was used to simulate the oxidation of 1-butene, 2-butene, and isobutene under motored engine conditions. Predicted species concentrations were compared to measured species concentrations obtained from a motored, single-cylinder engine. The chemical kinetic model reproduced correctly the trends in the measured species concentrations. The computational and experimental results showed the main features of olefin chemistry: radical addition to the double bond leads to the production of the observed carbonyls and epoxides. For isobutene oxidation, the production of unreactive, 2-methyl allyl radicals leads to higher molecular-weight species and chain termination. 44 refs., 10 figs.

48 citations