Abstract
An increase of needs for replacement of fossil fuels, and for mitigation of Carbon Dioxide emissions generated from fossil fuels inspires the search for new fuels based on renewable biological resources. It would be convenient if the biological component of the fuel required as little as possible conversion operations in the production. The obvious response is an attempt to use unconverted, neat plant oils as a fuel for Diesel engines. The present paper is devoted to the experimental studies of the combustion process of neat rapeseed oil, and its mixtures with gasoline and ethanol as additional components of the mixtures. The investigation of combustion was carried out in a fixed volume combustion chamber equipped with a Common Rail injection system. It is shown that the instant of ignition, as well as time-dependence of heat emanation, are strongly dependent upon mixture composition. The results enable the design of mixture compositions that could serve as commercial fuel for Diesel engines. Such fuels are expected to fulfill the requirements for the sustainability of road transport.
Highlights
In the era of the oil crisis and the progressing pollution of the natural environment, the main trend is to replace fossil fuels with alternative carriers [1,2,3].The needs for replacement of fossil fuels, and for mitigation of carbon dioxide emissions already became the challenge [4,5] that affects the World’s economy [6]
The analysis of the heat emanation during the combustion of mixtures of rapeseed oil with gasoline and ethanol in a constant volume chamber gave an insight into physico-chemical processes in the engine when using plant-derived fuels, and enabled drawing of the following conclusions: The results of this analysis confirmed conclusions drawn from the course of pressure and heat release rates
Injection pressure and fuel viscosity have a fundamental effect on the air/fuel mixture creation, which affects combustion processes and might affect exhaust composition and toxicity as well as fuel consumption
Summary
In the era of the oil crisis and the progressing pollution of the natural environment, the main trend is to replace fossil fuels with alternative carriers [1,2,3].The needs for replacement of fossil fuels, and for mitigation of carbon dioxide emissions already became the challenge [4,5] that affects the World’s economy [6]. New technologies in power engineering [7,8,9], promotion of electro-mobility, a departure from fossil fuels, and concern for sustainable development and energy security together with assuring the environmental protection are the factors that the fuel and energy industry must react to these changes and prepare for them [10,11,12]. These issues, seem to bring expected results in the rather distant future, which means they belong to strategic considerations. Derivatives of plant materials such as vegetable oils or their esters or ethanol are used for this purpose [34,35]
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call