The study of a gas-diesel engine technical and economic parameters as to its possibility to supply liquid gas fuel to the engine cylinders in a modern fuel system
Abstract
Introduction. The following gases can be used as fuel in internal combustion engines: propane, butane, methane. Depending on the state of the gas location the fuel supply systems of the engine will vary. Currently, it is customary to distinguish six generations of fuel systems that are used to supply gas fuel to the engine.
The purpose of the study was to make a research of gas fuels and modern (sixth generation of gas cylinder equipment (GCE)) gas fuel system with the possibility of its operating on the gas-diesel. Another task was to perform a simulation of the gas-diesel engine working process in order to study the technical and economic performance indicators of the engine.
Methodology and research methods. The study was carried out by means of mathematical methods and the method of full-scale experiment.
Scientific novelty and results. The analysis of gases used in internal combustion engines as fuel was made. A modern gas engine fuel system and a variant of its work in the gas-diesel process were considered. The modeling of the working process of a gas-diesel engine was performed. The results of the design study were confirmed by the data obtained in the course of a full-scale experiment (the tested gas-diesel engine GD-243).
Practical significance. A variant of the operation of the modern (sixth generation of GCE) fuel system for the gas-diesel process (new facility) has been proposed, and a new dependence was obtained for the influence of the size of the diesel fuel ignition portion on the lower calorific value of a mixture unit (for example 1 kg) of gas (propane-butane) and diesel fuels, and, as a result, on the power and fuel consumption of the engine. The results obtained may be of interest to specialists in the appropriate direction.
About the Authors
G. A. Vershina
Belarusian National Technical University
Belarus
Belarus
PhD (Eng), associate professor
Minsk 220013
O. S. Bystrenkov
Belarusian National Technical University
Belarus
Belarus
postgraduate
Minsk 220013
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Review
For citations:
Vershina G.A., Bystrenkov O.S. The study of a gas-diesel engine technical and economic parameters as to its possibility to supply liquid gas fuel to the engine cylinders in a modern fuel system. Trudy NAMI. 2019;(3):71-77. (In Russ.)
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