scholarly journals Combustion of Gaseous Alternative Fuels in Compression Ignition Engines

10.5772/61663 ◽  
2016 ◽  
Author(s):  
Maciej Mikulski ◽  
Slawomir Wierzbicki ◽  
Marta Ambrosewicz-Walacik ◽  
Kamil Duda ◽  
Andrzej Pietak
Keyword(s):  
Alternative Fuels ◽  
Compression Ignition ◽  
Compression Ignition Engines

scholarly journals EFFECT OF CNG IN A FUEL DOSE ON THE COMBUSTION PROCESS OF A COMPRESSION-IGNITION ENGINE

Transport ◽  
2015 ◽  
Vol 30 (2) ◽  
pp. 162-171 ◽  
Author(s):  
Maciej Mikulski ◽  
Sławomir Wierzbicki
Keyword(s):  
Natural Gas ◽  
Combustion Chamber ◽  
Alternative Fuels ◽  
Combustion Process ◽  
Diesel Oil ◽  
Dual Fuel ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Compression Ignition Engines ◽  
Main Component

Currently, one of the major trends in the research of contemporary combustion engines involves the potential use of alternative fuels. Considerable attention has been devoted to methane, which is the main component of Natural Gas (NG) and can also be obtained by purification of biogas. In compression-ignition engines fired with methane or Compressed Natural Gas (CNG), it is necessary to apply a dual-fuel feeding system. This paper presents the effect of the proportion of CNG in a fuel dose on the process of combustion. The recorded time series of pressure in a combustion chamber was used to determine the repeatability of the combustion process and the change of fuel compression-ignition delay in the combustion chamber. It has been showed that NG does not burn completely in a dual-fuel engine. The best conditions for combustion are ensured with higher concentrations of gaseous fuel. NG ignition does not take place simultaneously with diesel oil ignition. Moreover, if a divided dose of diesel is injected, NG ignition probably takes place at two points, as diesel oil.

scholarly journals DME as alternative fuel for compression ignition engines – a review

2019 ◽  
Vol 177 (2) ◽  
pp. 172-179
Author(s):  
Denys STEPANENKO ◽  
Zbigniew KNEBA
Keyword(s):  
Emission Reduction ◽  
Alternative Fuels ◽  
High Efficiency ◽  
Compression Ignition ◽  
Promising Alternative ◽  
Compression Ignition Engines ◽  
Toxic Emissions ◽  
Advanced Combustion ◽  
Reduction Characteristics ◽  
The One

The ecological issues and the depletion of crude oil, has led the researchers to seeking for non-petroleum based alternative fuels, along with more advanced combustion technologies, and after-treatment systems. The use of clean alternative fuels is the one of the most perspective method that aiming at resolving of the said issues. One of the promising alternative fuels that can be used as a clean high efficiency compression ignition fuel with reduced of toxic emissions is dimethyl ether (DME). Moreover, it can be produced from various feedstocks such as natural gas, coal, biomass and others. This article describes the properties and the potential of DME application on the combustion and emission reduction characteristics of the compression ignition engines.

scholarly journals Catalyst Conversion Rates Measurement on Engine Fueled with Compressed Natural Gas (CNG) Using Different Operating Temperatures

Mechanika ◽  
2021 ◽  
Vol 27 (6) ◽  
pp. 492-497
Author(s):  
Dariusz SZPICA ◽  
Marcin DZIEWIĄTKOWSKI
Keyword(s):  
Natural Gas ◽  
Alternative Fuels ◽  
Injection System ◽  
Compression Ignition ◽  
Low Carbon ◽  
Compression Ignition Engine ◽  
Compressed Natural Gas ◽  
Compression Ignition Engines ◽  
Conversion Rates ◽  
Lower Temperature

Further restrictions on the use of compression-ignition engines in transportation are prompting the search for adaptations to run on other fuels. One of the most popular alternative fuels is Compressed Natural Gas (CNG), which due to its low carbon content can be competitive with classical fuels. This paper presents the results of testing a Cummins 6BT compression ignition engine that has undergone numerous modifications to convert to CNG power. The sequential gas injection system and the ignition system were installed in this engine. The compression ratio was also lowered from 16.5 to 11.5 by replacing the pistons. Tests conducted on an engine dynamometer were to show the differences in emission and conversion in the catalyst of hydrocarbons contained in the exhaust gases. Two structurally different catalysts operating at different exhaust temperatures (400 and 500)±2.5°C were used. The catalyst operating at 500±2.5°C showed a 23.5% higher conversion rate than the catalyst operating at a lower temperature in the range of the speed range tested. Also the external indicators, such as power and torque for the case of higher operating temperature took values over 70% higher. The research is one of the stages of a comprehensive assessment of the possibility of adaptation of compression ignition engines to CNG-only fueling.

Performance, Combustion Characteristics and Emission Tests of Single Cylinder Engine Running on Fusel Oil - Diesel Blended (F20) Fuel

2017 ◽  
Vol 9 (3) ◽  
Author(s):  
O.I. Award ◽  
R. Mamata ◽  
M.M. Noor ◽  
T.K. Ibrahim ◽  
I.M. Yusri
Keyword(s):  
Alternative Fuels ◽  
Internal Combustion Engines ◽  
Cetane Number ◽  
Compression Ignition ◽  
Heating Value ◽  
Fusel Oil ◽  
Single Cylinder ◽  
Research Areas ◽  
Compression Ignition Engines ◽  
Cylinder Compression

Alcohols produced from a renewable source are amongst the important alternative fuels for internal combustion engines. Investigations on alternative fuels for compression ignition engines regarded as one of the major research areas. This paper details an experimental examination of the performance and emissions in single cylinder compression ignition engines operating with fusel oil F20 and pure diesel F0 at five engine speeds and 50% engine load. The test results indicated that the engine power and torque slightly decrease with the F20 at low speeds compared with pure diesel. Further, the in-cylinder pressure was decreased at all engine speed for F20 in comparison with pure diesel. The volumetric efficiency and fuel consumption were increased for F20 due the low heating value of fusel oil. The results showed that CO2 and CO emissions were increased because of the water content, low heating value and low cetane number for fusel oil. The maximum reduction in NOx emissions was 18% for F20 at 1500 rpm.

scholarly journals Study on Alternative Fuels for Compression Ignition Engines

2018 ◽  
Vol Volume-2 (Issue-6) ◽  
pp. 1443-1450
Author(s):  
Jaison C V ◽  
Dr. M K Aravindan ◽  
Dr. Alok Kumar Rohit | Akash Suresh ◽  
Keyword(s):  
Alternative Fuels ◽  
Compression Ignition ◽  
Compression Ignition Engines

scholarly journals Application of additives with gasoline fuel: A review

2020 ◽  
Vol 170 ◽  
pp. 01026
Author(s):  
Mayur Jadhav ◽  
Swati Jadhav ◽  
Supriya Chavan
Keyword(s):  
Alternative Fuels ◽  
Emission Characteristics ◽  
Brake Specific Fuel Consumption ◽  
Compression Ignition ◽  
Spark Ignition Engines ◽  
Performance Parameters ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Compression Ignition Engines ◽  
Brake Power

Alternative fuels have become very important nowadays and proving their importance in both positive ignition engines and compression ignition engines, so as to reduce the consumption of gasoline and diesel respectively. Also, blending of these alternative fuels (additives) into gasoline has been proved important in improving various performance parameters and reducing emission parameters. Various studies have been carried out in the field of using additives in gasoline to see the effects on performance parameters like Brake power, Brake thermal efficiency, Volumetric efficiency and brake specific fuel consumption. Also, this study emphasizes reducing the emissions to the ambient. The aim of this review is to compare and study various additives which can be blended with gasoline and study their effect on performance and emission characteristics of Spark ignition engines.

scholarly journals Performance Analysis of a Biodiesel-Fired Engine for Cogeneration

2021 ◽  
Vol 312 ◽  
pp. 08013
Author(s):  
Luigi Falbo ◽  
Ernesto Ramundo
Keyword(s):  
Environmental Sustainability ◽  
Alternative Fuels ◽  
Direct Injection ◽  
Pollutant Emissions ◽  
Zone Model ◽  
Compression Ignition ◽  
Compression Ignition Engines ◽  
Partial Load ◽  
Chp System ◽  
Continuous Demand

The continuous demand to reduce both the pollutant emissions and the greenhouse gas (GHG) is increasing the use of alternative fuels as biodiesel in direct-injection compression ignition engines under combined heat and power (CHP) configuration. Although the biodiesel has different thermophysical properties compared to the standard diesel, it can be used in compression ignition engines without significant modifications. However, the pure biodiesel and biodiesel/diesel blends provide different performance and combustion characteristics with respect to the standard diesel engine. In order to estimate the behaviour of a micro-CHP system fuelled with biodiesel, a zero dimensional (0D) numerical model was development. This model is based on a single zone model and predicts the behaviour of a biodiesel/diesel blend-fired engine at full and partial load in terms of electrical efficiency, thermal efficiency and specific fuel consumption. Notwithstanding the biodiesel/diesel blend reveals lower performance in terms of electric and thermal efficiencies, can be used in CHP systems preserving the environmental sustainability avoiding significant modifications in the engine architecture.

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