comparative evaluation of the effect of partial substitution of diesel fuel by natural gas on performance and emissions of a fumigated dual fuel diesel engine

Authors

r. g. papagiannakis

abstract

reduction of exhaust emissions is a major research task in diesel engine development in view of increasing concerns regarding environmental protection and stringent exhaust gas regulations. simultaneousreduction of nox emissions and particulate matter is quite difficult due to the soot/nox trade-off and isoften accompanied by fuel consumption penalties. towards this aim, automotive engineers have proposedvarious solutions, one of which is the use of alternative gaseous fuels as a supplement for the commercial liquid diesel fuel. this type of engine, which operates fuelled simultaneously with conventional diesel oiland gaseous fuel, is called “dual fuel” diesel engine. majority of the dual fuel diesel engines operate on the fumigation principle where the liquid diesel fuel is partially replaced by gaseous one fumigated intothe intake air. one of the gaseous fuels used commonly in compression ignition engine is natural gas, which has a relatively high auto-ignition temperature and moreover is an economical and clean burningfuel. the high auto-ignition temperature of natural gas is a serious advantage against other gaseous fuels since the compression ratio of most conventional di diesel engines can be maintained. moreover thecombustion of natural gas produces practically no particulates since natural gas contains less dissolved impurities (e.g. sulphur compounds). the present contribution is mainly concerned, with an experimentalinvestigation of the characteristics of dual fuel operation when liquid diesel is partially replaced with natural gas under ambient intake temperature in a di diesel engine. in the present work the results from thisinvestigation concerning data are given for performance and exhaust emissions. furthermore, through this experimental work the effect of liquid fuel percentage replacement by natural gas i.e. various values ofgaseous fuel / total fuel mass ratios are examined. the conclusions of this study may be proven to be consid

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Studying Simultaneous Injection of Natural Gas and Gasoline Effect on Dual Fuel Engine Performance and Emissions

According to the Global Fuel Crisis, it seems necessary to use alternative fuel instead of gasoline. Since the natural gas is cheaper, have higher frequency than gasoline and less pollution, it is a suitable fuel. Many efforts have been done in order to replace gasoline with natural gas. One of the methods is to inject natural gas and gasoline fuel simultaneously and to use the benefits of both...

full text

Dual Fuelling of a Direct Injection Automotive Diesel Engine by Diesel and Compressed Natural Gas

Application of Compressed Natural Gas (CNG) in diesel engines has always been important, especially in the field of automotive engineering. This is due to easy accessibility, better mixing quality and good combustion characteristics of the CNG fuel. In this study the application of CNG fuel along with diesel oil in a heavy duty direct-injection automotive diesel engine is experimentally investi...

full text

Prediction and Comparison of the Effect of N-butanol and Ethanol Addition to the Biodiesel-diesel Fuel Mixture on the Performance and Emissions Characteristics of a Diesel Engine

The main objective of this research is to study the effects of n-butanol and ethanol addition to the biodiesel-diesel fuel mixture on the performance and emission characteristics of a CI engine. The experimental tests were performed on a diesel engine. The RSM (Response Surface Methodology) method was used to develop mathematical models based on experimental data. According to the results, the ...

full text

Numerical study of the effect of fuel injection timing on the ignition delay, performance parameters and exhaust emission of gas/dual fuel diesel engine using Computational Fluid Dynamics

Today, due to the various usage of compression ignition engines in urban transportation, as well as the need to reduce exhaust emissions and control fuel consumption, the use of alternative fuels has become common in diesel engines. Gaseous fuel is one of the most common alternative fuels that can be used in diesel engines. The utilization of alternative fuels in compression ignition engines re...

full text

Investigating the effects of fuel injection strategies in a dual-fuel diesel-H2 compression ignition engine

In this computational research, the separate and simultaneous impacts of diesel direct injection timing, fuel spraying cone angle, and hydrogen gas addition on combustion characteristics, output emissions, and performance in a single-cylinder direct injection diesel engine was studied. In order to conduct the simulations, valid and reliable models for combustion, break-up, and for turbulence wa...

full text

Performance and Exhaust Gas Emissions Analysis of Direct Injection Cng-diesel Dual Fuel Engine

Existing diesel engines are under stringent emission regulation particularly of smoke and particulate matter in their exhaust. Compressed Natural Gas and Diesel dual fuel operation is regarded as one of the best ways to control emissions from diesel engines and simultaneously saving petroleum based diesel fuel. Dual fuel engine is a conventional diesel engine which burn either gaseous fuel or d...

full text

My Resources

Save resource for easier access later


Journal title:
international journal of energy and environmental engineering

ISSN

volume 2

issue 2 2011

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023