Assessment of Control Dual-Fuel Diesel Engine Affecting the Tendency to Knock
Łukasz Zieliński , Damian Walczak , Krzysztof Szczurowski , Stanisław Radkowski
AbstractThis article discusses the analysis of the control method for LPG injection in compression-ignition engines. The problem of the knocking combustion phenomenon in dual-fuel engines has been described. Determining maximal LPG share which would not induce knocking combustion is difficult based on the scarce amount of information regarding engine parameters. This work presents results of the tests in which an attempt was made to evaluate the impact of particular work parameters of the compression-ignition engine on the tendency of this phenomenon to occur. The engine of the tested vehicle was adjusted to dual-fuel work by installing an additional LPG fitting with injectors located in the intake manifold channels. Analysis of the vibroacoustic signals from laboratory sensors and from commercial sensors applied in spark-ignition engines has been used for the evaluation. The registered signals were subject to frequency analyses; the results of which have been graphically shown and extensively discussed. The tests were conducted at the Automotive Industry Institute (Przemysłowy Instytut Motoryzacji) at the chassis dynamometer in the course of run-up tests or during work with constant load and constant rotational velocity.
|Publication size in sheets||0.5|
|Book||Timofiejczuk Anna, Łazarz Bogusław, Chaari Fakher, Rafał Burdzik (eds.): Advances in Technical Diagnostics, vol. 10, 2018, Springer International Publishing, ISBN 978-3-319-62041-1, [978-3-319-62042-8], 521 p., DOI:10.1007/978-3-319-62042-8|
|Keywords in English||Knock,Dual fuel, LPG, Vibration|
|Score|| = 0.0, 26-09-2017, BookChapterMatConf|
= 0.0, 26-09-2017, BookChapterMatConf
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