Optimum Diesel Fuel for Future Clean Diesel Engines

Nowadays, the transport sector is trying to face climate change and to contribute to a sustainable world by introducing modern after-treatment systems or by using biofuels. In sectors such as road freight transportation, agricultural or cogeneration in which the electrification is not considered feasible with the current infrastructure, renewable options for diesel engines such as alcohols produced from waste or lignocellulosic materials with advanced production techniques show a significant potential to reduce the life-cycle greenhouse emissions with respect to diesel fuel. This study concludes that lignocellulosic biobutanol can achieve 60% lower greenhouse gas emissions than diesel fuel. Butanol-diesel blends, with up to 40% butanol content, could be successfully used in a diesel engine calibrated for 100% diesel fuel without any additional engine modification nor electronic control unit recalibration at a warm ambient temperature. When n-butanol is introduced, particulate matter emissions are sharply reduced for butanol contents up to 16% (by volume), whereas NOX emissions are not negatively affected. Butanol-diesel blends could be introduced without startability problems up to 13% (by volume) butanol content at a cold ambient temperature. Therefore, biobutanol can be considered as an interesting option to be blended with diesel fuel, contributing to the decarbonization of these sectors.

Effects of Physical and Chemical Properties of Diesel Fuel on NOx Emissions of Heavy-Duty Diesel Engines

10.4271/972997 ◽

1997 ◽

Cited By ~ 4

Author(s):

Nils-Olof Nylund ◽

Päivi Aakko ◽

Seppo Mikkonen ◽

Aapo Niemi

Keyword(s):

Diesel Fuel ◽

Diesel Engines ◽

Chemical Properties ◽

Nox Emissions ◽

Physical And Chemical Properties ◽

Heavy Duty ◽

Heavy Duty Diesel ◽

Physical And Chemical ◽

And Chemical Properties

Characteristics of injection of diesel fuel, rapeseed oil and their mixtures in diesel engines of various types

AutoGas Filling Complex + Alternative fuel ◽

10.36652/2073-8323-2021-20-4-167-178 ◽

2021 ◽

pp. 167-178

Author(s):

Keyword(s):

Diesel Engine ◽

Diesel Fuel ◽

Diesel Engines ◽

Rapeseed Oil ◽

High Speed ◽

Fuel Injection ◽

Experimental Studies ◽

Fuel Injector ◽

High Speed Diesel ◽

Engine Type

The necessity of adapting diesel engines to work on vegetable oils is justified. The possibility of using rapeseed oil and its mixtures with petroleum diesel fuel as motor fuels is considered. Experimental studies of fuel injection of small high-speed diesel engine type MD-6 (1 Ch 8,0/7,5)when using diesel oil and rapeseed oil and computational studies of auto-tractor diesel engine type D-245.12 (1 ChN 11/12,5), working on blends of petroleum diesel fuel and rapeseed oil. When switching autotractor diesel engine from diesel fuel to rapeseed oil in the full-fuel mode, the mass cycle fuel supply increased by 12 %, and in the small-size high-speed diesel engine – by about 27 %. From the point of view of the flow of the working process of these diesel engines, changes in other parameters of the fuel injection process are less significant. Keywords diesel engine; petroleum diesel fuel; vegetable oil; rapeseed oil; high pressure fuel pump; fuel injector; sprayer

STUDYING OF THE EFFECT OF WATER-FUEL MIXTURE ON OPERATIONAL PARAMETERS OF A DIESEL

Tekhnicheskiy servis mashin ◽

10.22314/2618-8287-2021-59-2-54-61 ◽

2021 ◽

Vol 2 (143) ◽

pp. 54-61

Author(s):

Sergey V. Borisov ◽

◽

Aleksandr E. Lomovskikh ◽

Oleg E. Prilepin ◽

Timur R. Mamatkazin ◽

...

Keyword(s):

Diesel Engine ◽

Diesel Fuel ◽

Diesel Engines ◽

Aqueous Dispersion ◽

Fuel Mixture ◽

Research Purpose ◽

Regression Equations ◽

Operational Parameters ◽

Rough Water ◽

Minimum Number

Improving the parameters of diesel engines is an urgent task. Work has been carried out to significantly reduce the consumption of their fuel with the introduction of water dispersions into the fuel. Currently, water-fuel emulsions with exotic emulsifiers are mainly tested. (Research purpose) The research purpose is in creation of a water-fuel emulsion without an emulsifier with a simple installation and identifying the influence of the composition and quality of this WFE on the performance of the YaMZ-236 diesel engine. (Materials and methods) The article presents a plant for the preparation of a "rough" water- fuel mixture from diesel fuel according to GOST 32511-2013 and distilled water according to GOST 6709. Authors conducted standard bench tests at the KI-5540- GOSNITI stand with a YaMZ-236 diesel engine with an upgraded fuel system and performed the control of the smoke content of the exhaust gases with the gas analyzer "AUTOTEST". The dependence of diesel performance indicators on the composition and dispersion of water-fuel emulsions without an emulsifier was studied experimentally with a minimum number of tests, but with the maximum possible combination of the values of three variable factors. (Results and discussion) The influence of various water-fuel emulsions on the performance of the diesel engine was evaluated according to the plan of a full factor experiment, including 20 tests. The second-order regression equations were obtained by mathematical processing of the test results. The feasibility of using water-fuel emulsions for diesel engines was confirmed. By modeling a water-fuel mixture without emulsifiers, there was created an aqueous dispersion with drops up to two micrometers. In the load tests of the diesel engine with it, there was noticed an improvement in its performance. (Conclusions) The introduction of 17-20 percent water dispersion with drops of up to two micrometers into diesel fuel reduced the specific fuel consumption by 18 percent, the smokiness in the K indicator by 20- 22, and in the N indicator by 30-35 percent.

Fuel Injection Strategy for Clean Diesel Engine Using Ethanol Blended Diesel Fuel

10.4271/2005-01-1725 ◽

2005 ◽

Cited By ~ 21

Author(s):

Ali Mohammadi ◽

Takuji Ishiyama ◽

Takaaki Kakuta ◽

Sung-Sub Kee

Keyword(s):

Diesel Engine ◽

Diesel Fuel ◽

Fuel Injection ◽

Injection Strategy ◽

Clean Diesel