Research of characteristics of working cycle of high-speed diesel engine operating on biofuels RME–E and D–RME–E. Part 2. Indicators and characteristics of heat release in diesel cylinder

Transport

Paulius Rapalis¹  Galina Lebedeva²  Ingrida Gudaitytė³  Justas Žaglinskis³  Sergejus Lebedevas³ 

[1] Department of Automobile Transport, Vilnius Gediminas Technical University, J. Basanavicˇiaus g. 28, LT-03224 Vilnius, Lithuania;Department of Informatics, Klaipėda University, H. Manto g. 84, LT-92294 Klaipėda, Lithuania;Department of Marine Engineering, Klaipėda University, I. Kanto g. 7, LT-92123 Klaipėda, Lithuania

关键词: characteristics of heat release;    diesel engine;    alcohol biodiesel;    nitrogen oxide;    cyclic instability;    indicated process;   

DOI  :  10.3846/16484142.2013.828652

学科分类：航空航天科学

来源: Vilnius Gedinimas Technical University

【 摘 要 】

This paper presents material about using two-component RME–E and three-component D–RME–E biodiesels in high-speed diesel engines. The results of the analysis of fuel injection parameters described in Part I of this scientific paper – Research of characteristics of working cycle of high-speed diesel engine operating on biofuels RME–E and D–RME–E. Part 1. Indicators of fuel injection system and indicative process – allow conducting a coherent research of heat release in the cylinder of diesel engines transferred from operation on mineral diesel D to mixed biodiesels containing E. Effects of increased ethanol E in the biodiesel of 1A41 diesel engine have been analysed in a wide range of loads, ranging from 0.25 to 1.0 Penom. It was found that the result of the transfer from two-phase heat release to one-phase heat release is an increase in the fuel's economy of the engine for every 10% increase of E in the fuel (increase of indicative process efficiency makes up 0.4÷0.5%). Dependency of heat release and nitrogen oxide emissions in the exhaust gases remains the same for mineral diesel, RME–E and D–RME–E. Indicators of cyclic stability of the diesel engine, operating on biodiesels containing E ≤ 30%, did not exceed those that are common for diesel engines operating on mineral diesel.

【 授权许可】

CC BY