Giving Standard Diesel Fuels Premium Performance Using Oxygen-Enriched Air in Diesel Engines

1993 ◽  
Author(s):  
R. R. Desai ◽  
E. Gaynor ◽  
H. C. Watson ◽  
G. R. Rigby
Keyword(s):  
Diesel Engines ◽  
Diesel Fuels

Study on Combustion and Emission Characteristics of Diesel Engines Using Ethanol Blended Diesel Fuels

2003 ◽  
Author(s):  
Bang-Quan He ◽  
Jian-Xin Wang ◽  
Xiao-Guang Yan ◽  
Xin Tian ◽  
Hu Chen
Keyword(s):  
Diesel Engines ◽  
Emission Characteristics ◽  
Diesel Fuels

Evaluation of Palm Biodiesel - Diesel Blending Properties, Storage Stability and Corrosion Behavior

2014 ◽  
Vol 695 ◽  
pp. 265-268
Author(s):  
Ramli Mat ◽  
Wan Nurul Aini Wan Nor Yuhaidi ◽  
Mohd Johari Kamaruddin ◽  
Onn Hassan
Keyword(s):  
Corrosion Rate ◽  
Palm Oil ◽  
Diesel Engines ◽  
Pour Point ◽  
Kinematic Viscosity ◽  
Storage Time ◽  
Slight Modification ◽  
Fuel Blend ◽  
Diesel Fuels ◽  
Average Corrosion Rate

Palm Biodiesel, which can be produced from transesterification palm oil with methanol, is an alternative fuel for diesel engines. It can be mixed with diesel fuels and used in diesel engines with no or slight modification. Therefore, in this study, commercially available diesel fuel was blended with biodiesel produced from transesterification of palm oil. The stability of the pure palm biodiesel (B100) was investigated over a storage time of 2, 4 and 6 months. The study assessed the corrosion rate of metals exposed to palm biodiesel. The kinematic viscosity, density and flash points of the blends increased with biodiesel amount in the fuel blend. However, pour point of the blends decreased as the amount of biodiesel in the blends is increased. Kinematic viscosity, pour point and flash point slightly increased with storage time. The average corrosion rate for copper is 0.5341 mpy, 0.2438 mpy for aluminium and 0.1802 mpy for mild steel.

Comparative Environmental Evaluation of JP-8 and Diesel Fuels Burned in Direct Injection (DI) or Indirect Injection (IDI) Diesel Engines and in a Laboratory Furnace

2004 ◽  
Vol 18 (5) ◽  
pp. 1302-1308 ◽  
Author(s):  
Constantinos D. Rakopoulos ◽  
Dimitrios T. Hountalas ◽  
Dimitrios C. Rakopoulos ◽  
Yiannis A. Levendis
Keyword(s):  
Diesel Engines ◽  
Direct Injection ◽  
Environmental Evaluation ◽  
Laboratory Furnace ◽  
Diesel Fuels

Gasoline compression ignition approach to efficient, clean and affordable future engines

2017 ◽  
Vol 232 (1) ◽  
pp. 118-138 ◽  
Author(s):  
Gautam Kalghatgi ◽  
Bengt Johansson
Keyword(s):  
Carbon Monoxide ◽  
Nitrogen Oxide ◽  
Diesel Engines ◽  
Injection Pressure ◽  
Transport Sector ◽  
Jet Fuels ◽  
Compression Ignition ◽  
Diesel Fuels ◽  
Compression Ignition Engines ◽  
And Control

The worldwide demand for transport fuels will increase significantly but will still be met substantially (a share of around 90%) from petroleum-based fuels. This increase in demand will be significantly skewed towards commercial vehicles and hence towards diesel and jet fuels, leading to a probable surplus of lighter low-octane fuels. Current diesel engines are efficient but expensive and complicated because they try to reduce the nitrogen oxide and soot emissions simultaneously while using conventional diesel fuels which ignite very easily. Gasoline compression ignition engines can be run on gasoline-like fuels with a long ignition delay to make low-nitrogen-oxide low-soot combustion very much easier. Moreover, the research octane number of the optimum fuel for gasoline compression ignition engines is likely to be around 70 and hence the surplus low-octane components could be used without much further processing. Also, the final boiling point can be higher than those of current gasolines. The potential advantages of gasoline compression ignition engines are as follows. First, the engine is at least as efficient and clean as current diesel engines but is less complicated and hence could be cheaper (lower injection pressure and after-treatment focus on control of carbon monoxide and hydrocarbon emissions rather than on soot and nitrogen oxide emissions). Second, the optimum fuel requires less processing and hence would be easier to make in comparison with current gasoline or diesel fuel and will have a lower greenhouse-gas footprint. Third, it provides a path to mitigate the global demand imbalance between heavier fuels and lighter fuels that is otherwise projected and improve the sustainability of refineries. The concept has been well demonstrated in research engines but development work is needed to make it feasible on practical vehicles, e.g. on cold start, adequate control of exhaust carbon monoxide and hydrocarbons and control of noise at medium to high loads. Initially, gasoline compression ignition engines technology has to work with current market fuels but, in the longer term, new and simpler fuels need to be supplied to make the transport sector more sustainable.

Vegetable Oils as Fuel for Diesel Engines: An Overview

2002 ◽  
Author(s):  
A. K. Babu ◽  
G. Devaradjane
Keyword(s):  
Diesel Engine ◽  
Vegetable Oils ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Emission Characteristics ◽  
Combustion Chambers ◽  
Engine Operation ◽  
Performance And Emission ◽  
Diesel Fuels ◽  
Conventional Diesel Fuel

The intent of this paper is to summarize the state of knowledge on use of vegetable oils as diesel fuels. Fuel related properties are reviewed and compared with conventional diesel fuel. The use of neat vegetable oil (edible and/or nonedible), biodiesel and its blends in a diesel engine has been discussed. Performance and emission characteristics are highlighted. Suitability of different combustion chambers for diesel engine operation with vegetable oils is outlined. Techniques to decrease viscosities are discussed. An overview on current developments on the use of vegetable oils directly and indirectly in diesel engines is presented.

Emissions From Various Biodiesel Sources Compared to a Range of Diesel Fuels in DPF Equipped Diesel Engines

2011 ◽  
Author(s):  
Aaron Williams ◽  
Jonathan Burton ◽  
Earl Christensen ◽  
Robert L. McCormick ◽  
John Tester
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Fuel Consumption ◽  
Diesel Engines ◽  
Nox Emissions ◽  
Test Cycle ◽  
Particle Count ◽  
Diesel Fuels ◽  
Total Particle

The purpose of this study was to measure the impact of various sources of petroleum-based and bio-based diesel fuels on regulated emissions and fuel economy in diesel particulate filter (DPF) equipped diesel engines. Two model year 2008 diesel engines were tested with nine fuels including a certification ultra-low sulfur diesel (ULSD), local ULSD, high aromatic ULSD, low aromatic ULSD, and twenty percent blends of biodiesel derived from algae, camelina, soy, tallow, and yellow grease. Regulated emissions were measured over the heavy duty diesel transient test cycle. Measurements were also made of DPF-out particle size distribution and total particle count from a 13-mode steady state test using a fast mobility particle sizer. Test engines were a 2008 Cummins ISB and a 2008 International Maxx Force 10, both equipped with actively regenerated DPFs. Fuel consumption was roughly 2% greater over the transient test cycle for the B20 blends versus certification ULSD in both engines, consistent with the slightly lower energy content of biodiesel. Unlike studies conducted on older model engines, these engines equipped with diesel oxidation catalysts and DPFs showed small or no measurable fuel effect on the tailpipe emissions of total hydrocarbons (THC), carbon monoxide (CO) and particulate matter (PM). No differences in particle size distribution or total particle count were seen in a comparison of certification ULSD and B20 soy, with the exception of engine idling conditions where B20 produced a small reduction in the number of nucleation mode particles. In the Cummins engine, B20 prepared from algae, camelina, soy, and tallow resulted in an approximately 2.5% increase in nitrogen oxides (NOx) compared to the base fuel. The International engine demonstrated a higher degree of variability for NOx emissions, and fuel effects could not be resolved (p > 0.05). The group of petroleum diesel test fuels produced a range of NOx emissions very similar to that caused by blending of biodiesel. Test cycles where an active regeneration of the DPF occurred resulted in a nearly threefold increase in NOx emissions and a 15% increase in fuel consumption. The full quantification of DPF regeneration events further complicates the accurate calculation of fuel impacts on emissions and fuel consumption.

scholarly journals Evaluation of Combustibility of Fuels for Marine Diesel Engines

2021 ◽  
Vol 132 (1) ◽  
pp. 54-61
Author(s):  
D. V. Nelyubov ◽  
◽  
L. P. Semihina ◽  
M. I. Fahrutdinov ◽  
A. N. Komersan ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Diesel Engines ◽  
Methyl Esters ◽  
Combustion Efficiency ◽  
Exhaust Gases ◽  
Diesel Fuels ◽  
Calculating Method ◽  
Marine Diesel ◽  
Short Time ◽  
Quality Indexes

There were studied the influence of composition of foreign marine fuels on its quality indexes which estimate the combustibility and combustion efficiency of this fuels in the marine reciprocators. It was found that using the high-density fuels in the engines of marine technique, which specified for exploitation on the automotive diesel fuels, can be the cause of decreasing the combustion efficiency, increasing of smokiness of exhaust gases and facility of technique’s failure. Using of methyl esters of fatty acids in the marine fuel’s composition in concentrations until 1 mass percent influents positively on combustibility and combustion efficiency. This result in the aggregate of results of other researches of influence these concentrations of FAME on the emulsification and lubricity of marine fuels follows to possibility of its short-time using marine technique. Experimentally proved the necessity of offered calculating method which estimates the combustion efficiency and combustibility of marine fuels. It was found that this method is more adequate and sensitive for estimation of those properties of heavy marine diesel fuels and petroleum diesel fuels with the FAME contention then the method of estimation of Cetane Index (GOST 27768).

scholarly journals DEVELOPMENT OF THE LUBRICITY ADDITIVE TO LOW-SULPHUR DIESEL FUELS BASED ON THE TECHNICAL ALKYLSALICYLIC ACIDS

2017 ◽  
Vol 17 (2) ◽  
pp. 201-208
Author(s):  
V.A. Tyshenko ◽  
S.V. Kotov ◽  
G.V. Timofeeva ◽  
N.S. Kotova ◽  
L.A. Onuchak ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Diesel Engines ◽  
Representative Sample ◽  
High Speed ◽  
High Efficiency ◽  
Diesel Fuels ◽  
High Speed Diesel ◽  
Low Sulfur ◽  
First Time ◽  
Lubricity Additive

For the first time a high efficiency of the technical alkylsalicylic acids asa basis of the lubricity additive to low-sulfur diesel fuel is established. Theoptimum compounding and method of obtaining the lubricity additive is developed. A representative sample of the lubricity additive obtained in the laboratory conditions. This the lubricity additive has passed tests for compliance withthe requirements of European safety criteria, according to GOST R 52368-2005(EN 590:2004), and in the frameworks of the Complex of qualifying estimationmethods for high-speed diesel engines.

Alternative Diesel Fuels Characterization in Non-Evaporating and Evaporating Conditions for Diesel Engines

2010 ◽  
Vol 3 (2) ◽  
pp. 219-228
Author(s):  
L. Allocca ◽  
E. Mancaruso ◽  
A. Montanaro ◽  
B. M. Vaglieco
Keyword(s):  
Diesel Engines ◽  
Diesel Fuels
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