Use of LPG in SI engine- A review study

Talib, Ghufran; Al‐Dawody, Mohamed F.

doi:10.30772/qjes.v14i1.751

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…Since the flame produced from it is blue and has similar properties to propane and butane, it is used as liquefied petroleum gas (LPG) for domestic use. So, according to the features mentioned, in the future, DME will be a large part of the alternative to conventional fuels today [11]. CN of DME is optimally high, so it is used as a substitute for diesel, and its combustion exhaust gas is much cleaner than diesel.…”

Section: -Introductionmentioning

confidence: 99%

CFD Simulation of Methanol Dehydration Step through an Adiabatic Fixed-bed Reactor of DME Synthesis

Mofidian,

Jahanshahi,

Hosseini

et al. 2023

IJCPE

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Today, dimethyl ether (DME) is changing to ordinarily worn as a superb aerosol propellant and refrigerant for its eco-friendly characteristics. Lately, with the development of novel chemical energy in the coal industries, it has become a fascinating field of research as an alternative green fuel for diesel machines due to the high cetane number. The DME synthesis processes include catalytic dehydrating methanol in an adiabatic fixed-bed reactor. In this study, to investigate the chemical conditions of the methanol dehydration reaction, CFD simulations of the adiabatic reactor have been assessed. The advantage of the work is a sensitivity analysis was run to find the effect of pressure, kinetics, and velocity on the reactor performance. The results showed that using a γ-Al2O3 catalyst with selective mechanical properties and unique surface properties is a convenient choice for DME synthesis. The CFD simulation results also show that the laboratory data such as pressure, energy, and velocity in the adiabatic reactor meet the reaction requirements well, and deliberated a major vision of what happened in the reactor. Also, the graphs of the temperature profile with changes in physical properties pomp that methanol dehydration reaction strongly depends on environmental factors and gives different results under the influence of other conditions.

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Section: -Introductionmentioning

confidence: 99%

CFD Simulation of Methanol Dehydration Step through an Adiabatic Fixed-bed Reactor of DME Synthesis

Mofidian,

Jahanshahi,

Hosseini

et al. 2023

IJCPE

View full text Add to dashboard Cite

show abstract

“…Around the world, the three main energy sources continue to be coal, oil, and natural gas. Burning fuels such as coal, oil, and natural gas emit pollutants like volatile organic compounds, CO2, CO, SO2, and NOx [1][2][3][4]. Several alternative fuel-vehicle combinations are being studied to reduce greenhouse gas emissions and put a limit on the use of fossil fuels.…”

Section: Introductionmentioning

confidence: 99%

Assessment of gasoline engine performance and emissions powered by different gasoline-water ammonia blends: A Review

Flaih,

Al-Dawody,

Verma

2023

QJES

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As a result of a large number of diseases due to environmental pollution resulting from emissions and fast energy depletion. Many researchers resorted methods to produce a mixture that can be used as fuel and fight these issues. In this work, a mini review was concluded through previous studies to highlight and investigate the effect of using water ammonia solution on the characteristics of IC engines with special focus on gasoline engines. The main findings showed decreased engine performance because ammonia has a lower calorific value and energy density. also, most of the previous contributions highlighted a significant reduction in CO2 and CO emissions for all loads. Using ammonia solution increased NOx emissions slightly.

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Study of dynamic and ecological properties of automotive bi-fuel engine

Chłopek

Lasocki

Sar

2021

Int J Energy Environ Eng

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Gaseous fuels are increasingly used to power internal combustion engines. Spark-ignition engines are fuelled with liquefied petroleum gas. Engines powered by gaseous fuels are characterized by good ecological properties due to the emission of pollutants. The paper presents the results of empirical tests of two passenger cars with spark-ignition engines powered alternatively: with gasoline and LPG fuel. The engines were equipped with fifth generation LPG fuelling systems. The tests were performed on a chassis dynamometer in tests used in approval procedures in Europe (NEDC test) and in the United States of America (FTP-75 test). These tests were the basis for determining the average specific distance emission of pollutants (carbon monoxide, hydrocarbons, nitrogen oxides and carbon dioxide) during the tests. The engines were also tested in the conditions of the external speed characteristics while accelerating the car in third gear. It was found that the type of fuelling the engines with both fuels has little influence on the dynamic properties of the engine due to the effective power. The tests clearly showed a decrease in specific distance emission of carbon monoxide and carbon dioxide. The relative reduction in specific distance emission of carbon monoxide was in the order of (45–65)%, and carbon dioxide—about 10%. For hydrocarbons, there was an increase in specific distance emission of hydrocarbons for the fuelling of engines with LPG, while for hydrocarbons, there was a large difference in the value of the relative specific distance emission difference for both tests. (The relative difference was from 25 to 175%.) Specific distance emission of nitrogen oxides turned out to be significantly higher when running engines with LPG. The reason for this is leaning of the fuel mixture at high rotational speed during acceleration of the car, which may result from insufficient conversion efficiency of engine control algorithms in the LPG fuel mode.

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Use of LPG in SI engine- A review study

Cited by 3 publications

References 30 publications

CFD Simulation of Methanol Dehydration Step through an Adiabatic Fixed-bed Reactor of DME Synthesis

CFD Simulation of Methanol Dehydration Step through an Adiabatic Fixed-bed Reactor of DME Synthesis

Assessment of gasoline engine performance and emissions powered by different gasoline-water ammonia blends: A Review

Study of dynamic and ecological properties of automotive bi-fuel engine

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