Theoretical and Experimental Study of the Fuelling a Truck Diesel Engine with Liquefied Petroleum Gas

2016 ◽  
Vol 822 ◽  
pp. 198-205
Author(s):  
Nikolaos Cristian Nutu ◽  
Constantin Pana ◽  
Alexandru Dobre ◽  
Niculae Negurescu ◽  
Alexandru Cernat
Keyword(s):  
Experimental Study ◽  
Diesel Engine ◽  
Spark Ignition ◽  
Experimental Investigations ◽  
Spark Ignition Engines ◽  
Nitric Oxides ◽  
Liquefied Petroleum Gas ◽  
And Storage ◽  
Objective Research ◽  
Engine Power

The increasing price of the fuels and tightening of the pollution rules requires the use of some efficient fuelling methodes with altenative fuels for diesel engines. Fuelling with LPG of a diesel engine is a viable sollution, considering that it can be used the infrastructure for distribution and storage already used for spark ignition engines. In this work are presented results of theoretical and experimental investigations of a truck diesel engine fuelled with LPG by diesel-LPG methode. The main objective research is the decrease of the nitric oxides emissions with the premise that the engine power is maintained at the same level like in the case of the standard engine, fuelled only with diesel fuel.

scholarly journals Improving Fuel Economy of Spark Ignition Engines Applying the Combined Method of Power Regulation

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1076 ◽  
Author(s):  
Yurii Gutarevych ◽  
Vasyl Mateichyk ◽  
Jonas Matijošius ◽  
Alfredas Rimkus ◽  
Igor Gritsuk ◽  
...  
Keyword(s):  
Fuel Economy ◽  
Spark Ignition ◽  
Operating Conditions ◽  
Spark Ignition Engine ◽  
Spark Ignition Engines ◽  
Combined Method ◽  
Research Results ◽  
Fuel Supply ◽  
Power Regulation ◽  
Engine Power

One of the disadvantages of spark ignition engines, whose power is regulated by throttling, is the increased fuel consumption at low loads and when the engine is idle. The combined method of engine power regulation by switching off the cylinder group and throttling working cylinders is one of the effective ways to improve fuel economy in the above-mentioned modes. This article presents the research results of the combined method of engine power regulation which can be realized by minor structural changes in operating conditions. The method implies the following: at low loads and at idle speed of the engine. Fuel supply to the group of cylinders is switched off with the simultaneous increase of the cyclic fuel supply in the working cylinders. The adequacy of the calculated results has been checked by the indication of operating processes in switched off and working cylinders. The research results of a six-cylinder spark ignition engine with the distributed gasoline injection using the combined power regulation system have been shown. The angles of opening the throttle which provides a non-shock transition from the operation with all cylinders to the operation with the cylinder group switched off have been determined.

The autoignition of Liquefied Petroleum Gas (LPG) in spark-ignition engines

2015 ◽  
Vol 35 (3) ◽  
pp. 2933-2940 ◽  
Author(s):  
Kai J. Morganti ◽  
Michael J. Brear ◽  
Gabriel da Silva ◽  
Yi Yang ◽  
Frederick L. Dryer
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engines ◽  
Liquefied Petroleum Gas

Service Methane Number as a Means to Avoid Knock in Natural Gas Fuelled Spark Ignition Engines

2003 ◽  
Author(s):  
Guillaume Brecq ◽  
Camal Rahmouni ◽  
Abdellilah Taouri ◽  
Mohand Tazerout ◽  
Olivier Le Corre
Keyword(s):  
Good Accuracy ◽  
Spark Ignition ◽  
Experimental Investigations ◽  
Spark Ignition Engines ◽  
Mean Absolute Deviation ◽  
Si Engine ◽  
Absolute Deviation ◽  
Gaseous Fuels ◽  
Maximum Absolute Deviation ◽  
Methane Number

Experimental investigations on the knock rating of gaseous fuels were carried out on a single cylinder SI engine of Lister-Petter make. The Service Methane Number (SMN) of different gas compositions is measured and then compared to the standard Methane Number (MN), calculated by the AVL software. Effects of engine parameters, by mean of the Methane Number Requirement (MNR) are also highlighted. A linear correlation, between the SMN and the MN, has been obtained with a maximum absolute deviation lower than 2 MN units. A prediction correlation giving the MNR from engine parameters has finally been deduced from experimental data with a good accuracy (mean absolute deviation of 0.5 MNR unit).

Engine Induction Developments - Economic and Reduced Exhaust Emissions: Fuel Vapourization - Economy with Reduced Exhaust Emission

1976 ◽  
Vol 190 (1) ◽  
pp. 1-11 ◽  
Author(s):  
D. W. Hughes ◽  
J. R. Goulburn
Keyword(s):  
Carbon Monoxide ◽  
Fuel Consumption ◽  
Exhaust Emissions ◽  
Spark Ignition ◽  
Exhaust Emission ◽  
Nitric Oxides ◽  
Ignition Timing ◽  
Inlet System ◽  
Lean Limit ◽  
Engine Power

SYNOPSIS This paper describes a simple system of controlling exhaust emissions from gasoline engined vehicles, using a coolant-heated fuel vaporiser in the inlet system. The object of complete vaporisation of the fuel is to create a homogeneous inlet charge, giving improved cylinder-to-cylinder distribution and permitting operation with very lean mixtures. This leads to low exhaust emissions of Carbon Monoxide, Hydrocarbons and Nitric Oxides. The effects of vaporisation on the lean limit of operation, exhaust emissions, power output, fuel consumption and optimum spark ignition timing have been investigated, and are discussed in the paper. Results of tests on a 1.6 litre car are also presented. It was found that exhaust emissions were effectively controlled, while vehicle driveability remained acceptable. Engine power was reduced by 25-30%, although fuel consumption was not increased.

Theoretical and Experimental Researches Regard the Use of Bioethanol at the Supercharged Spark Ignition Engine

2016 ◽  
Vol 822 ◽  
pp. 190-197
Author(s):  
Obeid Zuhair H. Obeid ◽  
Constantin Pana ◽  
Niculae Negurescu ◽  
Alexandru Cernat ◽  
Iulius Bondoc
Keyword(s):  
Combustion Process ◽  
Alternative Fuel ◽  
Good Alternative ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Experimental Investigations ◽  
Spark Ignition Engines ◽  
Local Cooling ◽  
Combustion Properties ◽  
Si Engines

The use of bioethanol as alternative fuel for automotive supercharged spark ignition engines is required especially for to respect the pollutant norms which become more and more severe, especially for NOx emissions.The general objective of the researches is improving of a automotive supercharged spark ignition engine efficiency, improving performance of power and torque and decreasing of the emissions level by the use of bioethanol. Bioethanol is so a very good alternative fuel for SI engines because of its better combustion proprieties comparative to the gasoline as a good cooling agent of the intake air due to its high vaporization heat.The paper presents results of some theoretical and experimental investigations on a 1.5 L supercharged SI engine fuelled with gasoline-bioethanol blends. The investigations show that the improvement of the combustion process by use the bioethanol at the supercharged spark ignition engine leads to the reduction of BSFC, to the accentuated reduction CO and HC due to a lower C content and better combustion properties of the bioethanol. In same time, the NOx emissions level significantly decreases because of the local cooling effect produced by bioethanol vaporization.

scholarly journals Aspects of the bioethanol use at the turbocharged spark ignition engine

2015 ◽  
Vol 19 (6) ◽  
pp. 1959-1966
Author(s):  
Zuhair Obeid ◽  
Alexandru Cernat ◽  
Constantin Pana ◽  
Niculae Negurescu
Keyword(s):  
Alternative Fuels ◽  
Spark Ignition ◽  
Point Of View ◽  
Spark Ignition Engine ◽  
Pollutant Emissions ◽  
Experimental Investigations ◽  
Emissions Reduction ◽  
Spark Ignition Engines ◽  
Ignition Timing ◽  
Research Domain

In the actual content of pollution regulations for the automotives, the use of alternative fuels becomes a priority of the thermal engine scientific research domain. From this point of view bioethanol can represents a viable alternative fuel for spark ignition engines offering the perspective of pollutant emissions reduction and combustion improvement. The paper presents results of the experimental investigations of a turbo-supercharged spark ignition engine (developed from a natural admission spark ignition engine fuelled with gasoline) fuelled with bioethanol-gasoline blends. The engine is equipped with a turbocharger for low pressure supercharging, up till 1.4 bar. An correlation between air supercharging pressure-compression ratio-dosage-spark ignition timing-brake power is establish to avoid knocking phenomena at the engine operate regime of full load and 3000 min-1. The influences of the bioethanol on pollutant emissions level are presented.

Sign in / Sign up

Export Citation Format

Share Document