The characteristics of coal, oil, and gas—which are used as fossil fuels for power generation—including supply and demand trends, and the properties of each fuel are clarified in this chapter. An overview of combustion systems specific to the fuels…
Diesel/natural gas dual fuel engine is prone to misfire, knock and other unstable combustion phenomena, resulting in excessive cycle variation. In order to better understand the influence of combustion mode on cycle variation of diesel/natural gas…
Diesel/natural gas dual fuel engine is prone to misfire, knock and other unstable combustion phenomena, resulting in excessive cycle variation. In order to better understand the influence of combustion mode on cycle variation of diesel/natural gas…
In this research, a newly proposed method combining Chemkin with CONVERGE was used to study the transient in-cylinder chemical reaction process in NG-diesel dual fuel engine. The selected mechanism was verified by comparing the results of CONVERGE…
Growing interest in liquefied natural gas (LNG) as a rocket fuel demands reliable prediction and an improved understanding of the changes in its composition arising from the preferential boil-off of lighter components during long duration storage.…
Growing interest in liquefied natural gas (LNG) as a rocket fuel demands reliable prediction and an improved understanding of the changes in its composition arising from the preferential boil-off of lighter components during long duration storage.…
In view of the increasing restrictions for CO2 mitigation, the evaluation of alternative fuels to ensure sustainability of transportation is becoming increasingly important. Since some of these alternatives can be refined from renewable sources, they…
The world is on brink of energy crisis. The limited fossil fuel sources are unable for the continuously increasing demand of energy. This associated with increasing price of fossil fuels and the awareness of the impacts of environmental pollution and…
Improved internal combustion engine simulations of natural gas (NG) combustion under conventional and advanced combustion strategies have the potential to increase the use of NG in the transportation sector in the U.S. This study focused on the…
The present work is an experimental investigation that aims at studying the effects of different fuel additives on the soot volume fraction and temperature in a well-defined vertical laminar diffusion flame configuration, and these additives include…
The pool fire with characteristics of high temperature and high radiation intensity, is serious accident in chemical companies, but the research for pool fire of large tank area is relatively scarce. Taking a large crude oil storage tank area for an…
The aim of this study is to apply the artificial neural network to identify the mathematical model of the combustion of a reactivity-controlled compression ignition (RCCI) engine fueled with natural gas and diesel oil. In this study, a…
The combi boilers are commonly used for the heating purposes in residences since the natural gas has started to be used prevalently as fuel. Depending on this common usage, the investigations on the development of these kinds of boilers accelerated…
The present study investigates the application of natural gas/hydrogen blends as an alternative fuel for industrial heat treatment furnaces and their economic potential for decreasing carbon dioxide emissions in this field of application. Doing so, a…
With environmental concerns and limited natural resources, there is a need for cleaner sources of energy in the transportation sector. Renewable natural gas (RNG) is being considered as a potential fuel for heavy-duty applications due to its…
An analysis of the literature on the use of natural gas shows a significant increase in the number of natural gas-powered vehicles, both in road and sea transport, and diesel-fueled vehicles adapted to run on natural gas. Due to its combustion…
A combination of biodiesel with hydroxy is expected to be one of the most viable fuels to enhance engine performance besides stringent emission norms. In this study, biodiesel was produced from water hyacinth and injected into the engine along with…
Jurisdictions are looking into mixing hydrogen into the natural gas (NG) system to reduce greenhouse gas (GHG) emissions. Earlier studies have focused on well-to-wheel analysis of H2 fuel cell vehicles, using high-level estimates for…
Jurisdictions are looking into mixing hydrogen into the natural gas (NG) system to reduce greenhouse gas (GHG) emissions. Earlier studies have focused on well-to-wheel analysis of H2 fuel cell vehicles, using high-level estimates for…
A liquefied natural gas (LNG) carrier is designed to transport LNG over a long distance. During transportation, the leakage of boil-off gas (BOG) along with poor ventilation can pose an explosion risk. The traditional method for dealing with the BOG…
A CFD methodology to model natural gas Light-Duty SI (Spark-Ignition) engines is here proposed. The ignition stage is modeled by means of a simplified Eulerian spherical kernel approach (deposition model). Then, the fully turbulent flame propagation…
Automotive vehicles operated with conventional fuels lead to increasing exhaust gases and reduced crude oil availability. In particular, NOx emissions from automotive engines fueled with fossil fuels are major pollutants of the environment. To…
Automotive vehicles operated with conventional fuels lead to increasing exhaust gases and reduced crude oil availability. In particular, NOx emissions from automotive engines fueled with fossil fuels are major pollutants of the environment. To…
This chapter shows the importance of “technical and operational knowledge” for the risk management professional to achieve the technical authority required to provide solutions that aim for the reduction of hazards and risks in facilities in the oil…
This chapter shows the importance of “technical and operational knowledge” for the risk management professional to achieve the technical authority required to provide solutions that aim for the reduction of hazards and risks in facilities in the oil…
Underwater technics is especially required at the operation in the Arctic shelf and for equipping the facilities located along the Northern Sea Route with underwater vessels. This is explained by the necessity to pass through ice fields. Of the…
Up to now the direct use of crude bio-oil as transportation fuel has been an impossible goal due to the thermal instability and some other drawbacks of bio-oil. In this paper, we use a simple method to accomplish the goal. Bio-oil and bio-diesel are…
The Paris agreement is exerting pressure on industries that generate significant greenhouse gas (GHG) emissions, such as transportation. Electrification can help reduce GHG emissions from light duty vehicles, but it is unfeasible for heavy duty…
In situ combustion (ISC) plays a significant role in the exploitation of heavy crude oil. In this study, the thermal behaviors and kinetics of combustion of heavy crude oil and its saturates-aromatics-reins-asphaltenes (SARA) fractions were…
Countries are under increasing pressure to reduce greenhouse gas emissions as an act upon the Paris Agreement. The essential emission reductions can be achieved by environmentally friendly solutions, in particular, the introduction of low carbon or…
Countries are under increasing pressure to reduce greenhouse gas emissions as an act upon the Paris Agreement. The essential emission reductions can be achieved by environmentally friendly solutions, in particular, the introduction of low carbon or…
Countries are under increasing pressure to reduce greenhouse gas emissions as an act upon the Paris Agreement. The essential emission reductions can be achieved by environmentally friendly solutions, in particular, the introduction of low carbon or…
This paper proposes a novel virtual engine calibration method for alternative fuels using thermodynamic simulation for in-cylinder pressure prediction. Based on known engine data, including the crank angle of the peak cylinder pressure, the…
This paper proposes a novel virtual engine calibration method for alternative fuels using thermodynamic simulation for in-cylinder pressure prediction. Based on known engine data, including the crank angle of the peak cylinder pressure, the…
In most practical combustion devices, the actual combustion process occurs within different mixture inhomogeneity levels. Investigating the mixture fraction field upstream of the reaction zones of these flames is an essential step toward…
In most practical combustion devices, the actual combustion process occurs within different mixture inhomogeneity levels. Investigating the mixture fraction field upstream of the reaction zones of these flames is an essential step toward…
In most practical combustion devices, the actual combustion process occurs within different mixture inhomogeneity levels. Investigating the mixture fraction field upstream of the reaction zones of these flames is an essential step toward…
This paper concerns a novel integrated system for geothermal-based power and hydrogen generation and blending of hydrogen into natural gas to feed household devices, such as gas stove and combi boiler. The system includes a combined flash and binary…
This paper concerns a novel integrated system for geothermal-based power and hydrogen generation and blending of hydrogen into natural gas to feed household devices, such as gas stove and combi boiler. The system includes a combined flash and binary…
This paper proposes a novel integrated system for hydrogen and natural gas blending system for a selected residential application. In the current system, hydrogen is generated via an alkaline water electrolyzer unit, and the electricity required for…
Density Functional Theory and canonical ensemble were used to investigate thermodynamic properties of Syngas and its mixture with natural gas. The following thermodynamic potentials were obtained: internal energy, enthalpy, entropy and Gibbs free…
One of the main environmental problems in oil production in the world today is the utilization of associated petroleum gas (APG) by combustion it in flares. At the same time, this process has enormous economic damage, since APG is a potential raw…
One of the main environmental problems in oil production in the world today is the utilization of associated petroleum gas (APG) by combustion it in flares. At the same time, this process has enormous economic damage, since APG is a potential raw…
One of the main environmental problems in oil production in the world today is the utilization of associated petroleum gas (APG) by combustion it in flares. At the same time, this process has enormous economic damage, since APG is a potential raw…
Diesel injection plays a significant role in the mixing process of dual-fuel engine. The diesel nozzle is an important interaction between the injection system and the combustion chamber that deserves more investigation. To fully assess the effect of…
Present study deals with the effect of enrichment with H2 on the laminar burning velocity (LBV) and flame stability of various multicomponent NGair mixtures. In the present work, constant pressure outwardly propagating spherical flame method is used…
The paper presents results of experimental research on a dual-fuel engine powered by diesel fuel and natural gas enriched with hydrogen. The authors attempted to replace CNG with hydrogen fuel as much as possible with a constant dose of diesel fuel…
This work investigates the thermo-oxidative behaviour of saturates, aromatics, and resins, at different pressures of 0.084, 3.0, and 6.0 MPa. Saturates (S), aromatics (Ar), and resins (R) were characterized by elemental analysis, vapor pressure…