文章基本信息

标题：Application of alcohols to dual – fuel feeding the spark-ignition and self-ignition engines
本地全文：下载
作者：Zdzisław Stelmasiak
期刊名称：Polish Maritime Research
电子版ISSN：2083-7429
出版年度：2014
卷号：21
期号：3
页码：86-94
DOI：10.2478/pomr-2014-0034
语种：English
出版社：Sciendo
摘要：This paper concerns analysis of possible use of alcohols for the feeding of self - ignition and spark-ignition engines operating in a dual- fuel mode,i.e.simultaneously combusting alcohol and diesel oil or alcohol and petrol.Issues associated with the requirements for application of bio-fuels were presented with taking into account National Index Targets,bio-ethanol production methods and dynamics of its production worldwide and in Poland.The considerations are illustrated by results of the tests on spark- ignition and self- ignition engines fed with two fuels : petrol and methanol or diesel oil and methanol,respectively.The tests were carried out on a 1100 MPI Fiat four- cylinder engine with multi-point injection and a prototype collector fitted with additional injectors in each cylinder.The other tested engine was a SW 680 six- cylinder direct- injection diesel engine.Influence of a methanol addition on basic operational parameters of the engines and exhaust gas toxicity were analyzed.The tests showed a favourable influence of methanol on combustion process of traditional fuels and on some operational parameters of engines.An addition of methanol resulted in a distinct rise of total efficiency of both types of engines at maintained output parameters ( maximum power and torque ).In the same time a radical drop in content of hydrocarbons and nitrogen oxides in exhaust gas was observed at high shares of methanol in feeding dose of ZI ( petrol) engine,and 2-3 fold lower smokiness in case of ZS ( diesel) engine.Among unfavourable phenomena,a rather insignificant rise of CO and NOx content for ZI engine,and THC and NOx – for ZS engine,should be numbered.It requires to carry out further research on optimum control parameters of the engines.Conclusions drawn from this work may be used for implementation of bio-fuels to feeding the combustion engines.
关键词：dual-fuel engine;alcohol;share of methanol;overall efficiency;toxicity