428 Impact on Fuel Consumption and Exhaust Gas Composition of the Concentrated Exhaust Gas Components Injection into Diesel Engine Intake : Consideration in Development of Exhaust Gas Treatment System Using Ad-Desorption of NOx

The use of biofuel is one method for limiting the harmful impact of diesel engines on the environment. It is also a way of gradually becoming less dependent on the depleting petroleum resources. New resources for producing biodiesel are currently being sought. The authors produced esters from animal fat waste, obtaining a fuel that can power diesel engines and identifying a way to utilise unnecessary waste. The animal fat methyl ester (AME) was produced using a reactor constructed for non-industrial ester production. The aim underlying this paper was to determine whether a diesel engine can be fuelled with AME biodiesel and to test this fuel’s impact on exhaust gas composition and fuel consumption. Fuelling a Perkins 1104D-44TA engine with AME biodiesel led to a reduction in the smoke opacity of the exhaust gas as well as in carbohydrate, particulate matter, and carbon monoxide concentrations. The carbon dioxide concentrations were similar for biodiesel and diesel fuel. Slight increases in nitrogen oxides concentrations and brake-specific fuel consumption were found for AMEs. An engine can be fuelled with AME biodiesel, but it is necessary to improve its low-temperature properties.

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Ensuring Requirements for Emissions of Harmful Substances of Diesel Engines

Science & Technique ◽

10.21122/2227-1031-2020-19-4-305-310 ◽

2020 ◽

Vol 19 (4) ◽

pp. 305-310

Author(s):

G. M. Kuharonak ◽

D. V. Kapskiy ◽

V. I. Berezun

Keyword(s):

Diesel Engine ◽

Nitrogen Oxides ◽

Fuel Consumption ◽

Exhaust Gas Recirculation ◽

Exhaust Gas ◽

Average Temperature ◽

Dispersed Particles ◽

Harmful Substances ◽

Gas Recirculation ◽

Emissions Of Harmful Substances

The purpose of this work is to consider the requirements for emissions of harmful substances of diesel engines by selecting design and adjustment parameters that determine the organization of the workflow, and the exhaust gas cleaning system, taking into account the reduction of fuel consumption. Design elements and geometric characteristics of structures for a turbocharged diesel engine of Д-245 series produced by JSC HMC Minsk Motor Plant (4ЧН11/12.5) with a capacity of 90 kW equipped with an electronically controlled battery fuel injection have been developed: exhaust gas recirculation along the high pressure circuit, shape and dimensions of the combustion chamber, the number and angular arrangement of the nozzle openings in a nozzle atomizer, and inlet channels of the cylinder head. Methods for organizing a workflow are proposed that take into account the shape of the indicator diagrams and affect the emissions of nitrogen oxides and dispersed particles differently. Their implementation allows us to determine the boundary ranges of changes in the control parameters of the fuel supply and exhaust gas recirculation systems when determining the area of minimizing the specific effective fuel consumption and the range of studies for the environmental performance of a diesel engine. The paper presents results of the study on the ways to meet the requirements for emissions of harmful substances, obtained by considering options for the organization of working processes, taking into account the reduction in specific effective fuel consumption, changes in the average temperature of the exhaust gases and diesel equipment. To evaluate these methods, the following indicators have been identified: changes in specific fuel consumption and average temperature of the toxicity cycle relative to the base cycle, the necessary degree of conversion of the purification system for dispersed particles and NOx. Recommendations are given on choosing a diesel engine to meet Stage 4 emission standards for nitrogen oxides and dispersed particles.

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Characteristics of Combustion and Exhaust Gas and Fuel Consumption In DI Diesel Engine Using Ringed Impingement Wall Head

10.4271/2001-01-1812 ◽

2001 ◽

Author(s):

M. Ogura ◽

X.F. Bao

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Exhaust Gas ◽

Di Diesel Engine

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INFLUENCE OF THE BIODIESEL FUELS WITH MULTIFUNCTIONAL ADDITIVES ON THE DIESEL ENGINE EFFICIENCY

Proceedings of the 7th International Scientific Conference Rural Development 2015 ◽

10.15544/rd.2015.018 ◽

2015 ◽

Cited By ~ 1

Author(s):

Renaldas BARANAUSKAS ◽

Risto ILVES ◽

Arne KÜÜT ◽

Jüri OLT

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Engine Speed ◽

Repeated Loading ◽

Exhaust Gas ◽

Maximum Torque ◽

Engine Efficiency ◽

Multifunctional Additives ◽

Biodiesel Fuels

The article presents the tests of the engine Valmet 320 DS installed in the teststand "Schenck Dynas3 LI 250". For these tests biodiesel produced by JSC Rapsoila was used. The test was carried out causing the engine speed to 2600 rpm and loading gradually to maximum. Torque (Te), engine speed (ne), fuel consumption (Bf), the pressure in the cylinder (Pe) and exhaust gas CO, CO2, O2, HC, NOx were measured. Initially, measurements were carried out using biodiesel (RME). After that, biodiesel was added with the additive Valvoline VPS HD Diesel System Complete keeping a ratio of 100:1. In order to evaluate the effects of additives the engine was working two hours using biodiesel and additive mixture. After two hours the measurements were repeated loading the engine in the same mode. The work presents the results of tests carried out.

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