Development of a method for experimental investigation of combustion process in lean burn gas engines
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 4, Issue 5
Abstract
<p>The problems of engine experiments in the conditions of unstable combustion were considered. A practical problem was the experimental study of the influence of spark discharge parameters of the ignition system on the operation of the gas engine at the lean limit. The possibility of expanding the lean limits by applying a high-energy capacitor discharge spark ignition system under the condition of limited erosion rate of the spark plug electrode surface was investigated. Particular attention was paid to the instability of the spark discharge as a process of transferring a portion of energy to the mixture in order to develop a flame kernel.</p><p>After analyzing the results of the experiment, its significant shortcomings associated with the lack of consideration of the phenomenon of cyclic instability of pocesses before ignition of mixture – for example, the spark discharge at the spark plug electrodes were revealed. This fact led to a thorough revision of the experimental research method and formulation of technical requirements to the measuring equipment.</p><p>A new method of bench tests by applying the latest automated system for the cycle-by-cycle measurement of spark discharge parameters with simultaneous processing of recorded indicator diagrams and statistical analysis of results for the last 1,000 engine cycles was proposed. The main advantage of the method is an increased reliability of the results of the experiment on the lean burn gas engine and reduction of the time for finding experimental errors.</p><p>Given that this method can be implemented only in a specialized measurement system, functional requirements as part of technical specifications for developing a new measuring system were formed.</p><p>The results obtained can be used in the experimental studies of combustion in lean burn gas engines at the stage of experiment planning and selection of measuring equipment.</p>
Authors and Affiliations
Dmytro Shvydkyy
Keywords
Related Articles
- EP ID EP528081
- DOI 10.15587/1729-4061.2018.140484
- Views 79
- Downloads 0
Studying the effect of the integrated bread baking improver "Mineral Freshness Super" on consumer properties of wheat bread
<p>Scientists from the National University of Food Technologies (Ukraine) developed the integrated bread baking improver "Mineral Freshness Super" whose formulation includes nutritional supplements with the GRAS status....
Application of information technologies for the optimization of itinerary when delivering cargo by automobile transport
<p>We have proven the applicability of modern tools of information technologies to solve a traveling salesman problem using a combinatorial method and a transport problem, which is stated in the form of a road transport...
Developing the method of rational trucking routing based on the modified ant algorithm
<p>The method of rational routing based on the modified ant algorithm with introduction of a quality function that characterizes the qualitative state of roads was proposed. Comprehensive assessment of potential routes t...
The influence of the pack decarburizing process with Pinctada maxima shell powder agent on the properties of high carbon steel
<p>In the present study, ductility enhancement of high carbon steel AISI 420 was conducted by pack decarburizing method to improve mechanical properties of this steel. This specimen was placed in a rectangular box contai...
Designing a combined device for determining the place of arc discharge
<p>We determined factors that arise during an arc discharge and detected possibility of their use to accelerate protection against arc closure. This enables creation of a combined device for accurate determination of an...