An Examination of Some Measures for Improving the Performance of Gas Fuelled Diesel Engines at Light Load
About: This article is published in SAE transactions.The article was published on 1991-10-01. It has received 84 citations till now. The article focuses on the topics: Diesel fuel.
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TL;DR: In this article, an experimental investigation has been conducted to examine the effects of the total air-fuel ratio on the efficiency and pollutant emissions of a high speed, compression ignition engine located at the authors' laboratory, where liquid diesel fuel is partially substituted by natural gas in various proportions, with the natural gas fumigated into the intake air.
339 citations
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
TL;DR: In this paper, an experimental investigation of a small IDI biogas premixed charge diesel dual fuelled CI engine used in agricultural applications is presented, which reveals almost no deterioration in engine performance but lower energy conversion efficiency.
160 citations
TL;DR: In this article, the effects of EGR ratio, engine speeds, loads, temperature of recycled exhaust gases, intake charge pressure and engine compression ratio on combustion noise and thermal efficiency were examined for the dual fuel engine.
126 citations
TL;DR: In this paper, the performance of a gas-fuelled diesel engine (dual fuel) is examined at light load and an effective threshold limit to the combustion of the gaseous fuel through bulk flame spread is identified.
124 citations
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TL;DR: Interest in the efficient utilization of gaseous fuel resources for the production of power using conventional internal combustion engines has been increasing worldwide in view of the inevitable declining resources of petroleum and projected limitations on the availability of refined liquid fuels, particularly those of the right quality.
Abstract: Interest in the efficient utilization of gaseous fuel resources for the production of power using conventional internal combustion engines, has been increasing worldwide in view of the inevitable declining resources of petroleum and projected limitations on the availability of refined liquid fuels, particularly those of the right quality. This is in contrast to statements made that the proven reserves of natural gas are increasing1 and that there are potentially enormous reserves of natural gas2 that can be utilized as fuels in engine applications. Moreover, there is increased perceived availability of other forms of gaseous fuels such as liquid petroleum gases, gas fuel mixtures produced from the processing and upgrading of various fossil fuel resources such as coal, oil sands and shales and from the processing of organic and vegetable wastes in the form of bio-gas.
76 citations
01 Jun 1966
TL;DR: In this paper, the authors describe some aspects of the findings of an investigation which was initiated mainly to obtain a better understanding of the phenomenon of knock under dual-fuel operation and to determin...
Abstract: The paper describes some aspects of the findings of an investigation which was initiated mainly to obtain a better understanding of the phenomenon of knock under dual-fuel operation and to determin...
73 citations
01 Sep 1989
53 citations
01 Nov 1987
18 citations
01 Aug 1989
17 citations