Hydrogen socialization has become a promising target in future energy development. Hydrogen fuel cell vehicle is gradually becoming a considerable substitute for fossil fuel vehicles in many countries. As for the promotion of hydrogen fuel cell…
Hydrogen socialization has become a promising target in future energy development. Hydrogen fuel cell vehicle is gradually becoming a considerable substitute for fossil fuel vehicles in many countries. As for the promotion of hydrogen fuel cell…
Hydrogen socialization has become a promising target in future energy development. Hydrogen fuel cell vehicle is gradually becoming a considerable substitute for fossil fuel vehicles in many countries. As for the promotion of hydrogen fuel cell…
Hydrogen socialization has become a promising target in future energy development. Hydrogen fuel cell vehicle is gradually becoming a considerable substitute for fossil fuel vehicles in many countries. As for the promotion of hydrogen fuel cell…
Hydrogen socialization has become a promising target in future energy development. Hydrogen fuel cell vehicle is gradually becoming a considerable substitute for fossil fuel vehicles in many countries. As for the promotion of hydrogen fuel cell…
As a kind of important clean and renewable energy, hydrogen energy has received increasing attention. In the past, the majority of researchers from colleges and universities, Chinese Academy of Sciences and other institutions carrying out hydrogen…
Hydrogen holds enormous potential in helping the world achieve its decarbonization goals and is set to play a key role in the Energy Transition. However, two central building blocks are needed to make the hydrogen economy a reality: 1) a sufficient…
Given the growing severity of particulate matter (PM) and greenhouse gas pollution, the Korean government recently began supporting the use of eco-friendly vehicles, such as electric vehicles and hydrogen fuel cell vehicles. However, the uptake of…
Petroleum refinery has been developed for production of transportation fuel with light alkenes and benzene, toluene, ethylbenzene, and xylenes (abbreviated BTEX), but global market demands are shifting to chemicals produced from light alkenes and…
Hydrogen is a clean fuel that can potentially revolutionize the energy supply chain and decarbonize fuel consumption. However, a key hurdle that needs to be overcome before a full-scale hydrogen economy can be established is hydrogen storage which is…
The so-called blue hydrogen production process, integrates conventional fossil fuel-based production methods with carbon capture and storage technologies. This combination reduces total CO2 emissions, compared to conventional grey fossil-fuel-based…
Hydrogen is presently evaluated as a clean fuel to mitigate anthropogenic CO2 emissions and reduce the greenhouse gas effect. However, one of the major challenges for implementing a full hydrogen economy is hydrogen storage (as hydrogen is highly…
Hydrogen is currently assessed as a future clean fuel in a hydrogen economy. However, one key problem with implementing a full-scale hydrogen economy is hydrogen storage (as hydrogen is highly compressible and volatile). One solution for this problem…
Hypothesis: Hydrogen geo-storage is considered as an option for large scale hydrogen storage in a full-scale hydrogen economy. Among different types of subsurface formations, coal seams look to be one of the best suitable options as coal's micro/nano…
The importance of manufacturing of hydrogen fuel tanks due to the application of hydrogen fuels in clean and recyclable energy is one of the most important issues of substituting the petroleum fuels. They consist of two main parts: Plastic liner, as…
The effect of the addition of hydrogen to various multicomponent natural gas (NG) blends is experimentally and numerically investigated. All the experiments are performed at a pressure of 0.1 MPa, a temperature of 300 3 K, and a range of equivalence…
Experimental and numerical studies on the effect of spark ignition engine fueled with different fractions of CNGCO2H2 blend were conducted. The results show that with the increase of CO2 fraction, the effect of vortex on the flame wrinkle is…
The addition of hydrogen derived from renewable power to the natural gas network is being promoted as a viable means of storing excess wind and solar energy. However, the changes in combustion properties of the natural gas upon hydrogen addition can…
This research presents the test results carried out in a diesel engine converted to spark ignition (SI) using gaseous fuels, applying a geometry change of the pistons combustion chamber (GCPCC) to increase the turbulence intensity during the…
Without remorse, fossil fuels have made a huge contribution to global development in all of its forms. However, the recent scientific outlooks are currently shifting as more research is targeted towards promoting a carbon-free economy in addition to…
The laminar burning velocity of H2 and CO enriched natural gas (HyCONG) mixtures measured through spherically expanding flames method under three different fuel-air equivalence ratios (0.6, 0.8, and 1.0) at room temperature and atmospheric pressure.…
A combustor was developed to operate with natural gas and air as the primary propellants at elevated chamber pressures and air preheat temperatures representative of land-based power generation gas turbine engines. Detonation dynamics were studied to…
In CNG/Diesel reactivity controlled compression ignition (RCCI) engines, because of low reactivity fuel (natural gas) spread of flame in combustion chamber suffers process of combustion and also there is more unburned hydrocarbon emission in this…
An integrated natural gas decarbonisation and dual fuel cells power cycle (NGDDFC) was evaluated. The hydrogen and solid carbon produced in the natural gas decarbonisation process are fed to hydrogen and carbon fuel cells respectively. A fraction of…
The mass fraction burned (MFB) of the gas mixture in combustion process as the function of the combustion duration time, reflects the percentage of fuel consumed at the every moment in the combustion process, and is an important factor for analysing…
The effects of hydrogen enrichment in a naturally aspirated spark ignition engine fuelled with compressed natural gas were investigated. A mixer that can control the enrichment fraction and assure homogeneity of hydrogen in CNG was used in the…
Environmental benefits are one of the main motivations encouraging the use of natural gas as fuel for internal combustion engines. In addition to the better impact on pollution, natural gas is available in many areas. In this context, the present…
With the increasing use of natural gas, improving the thermal efficiency and reducing emissions has become the major goals in its combustion. The objective of the present work is to investigate the effect of hydrogen addition on the combustion…
The effects of initial pressure, equivalence ratio, hydrogen fraction, and CO2 dilution ratio on the characteristics of ion currents and heat release rate (HRR) were comparatively investigated with natural gas as a fuel. Ion currents were measured…
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…
In this work, an investigation of the effect of natural gas-hydrogen blended fuel on the combustion performance of a Rich/Quench/Lean (RQL)can combustor. Actually, a CFD numerical simulations have been performed for various volumetric fractions of…
Because of deficiency of fossil fuels and stringent emission legislations of environmental pollutants, many researches have been done on the sustainable fuel resources. Natural gas ranks as one of the most popular alternative fuels for public…
This study deals with the implementation of an analytical model to simulate the energy performance associated to a commercial Gas adsorption Heat Pump, when H2NG (Hydrogen Enriched Natural Gas) blends are used as fuel. In detail, a water source heat…
In order to investigate the effects of hydrogen enrichment on the combustion and emission formation processes of large medium-speed natural gas engines ignited by pre-chamber turbulent jets, a computational fluid dynamic method coupled chemical…
Utilization of hydrogen fuel in internal combustion engine is regarded as a good choice due to its zero-carbon emission. The experiments have been performed under a wide range of operating conditions and the traces of in-cylinder pressures are…
Petrochemicals are the main source of pollution that can be controlled with the implementation of hydrogen fuel in transportation sector due to the property of carbon free structure. In the present study, experiments of gas engine have been conducted…
The combination of hydrogen enrichment and pre-chamber initiated turbulent jet ignition was proposed to improve the combustion and performance of large bore gas engines. In order to clarify the effects of hydrogen enrichment level on the combustion…
In the near future, the natural gas grid could face an increasing share of alternative fuels (biomethane, hydrogen) injected in addition to the traditional mixture. Indeed, this pathway is particularly promising in order to reach environmental…
This study deals with the implementation of an analytical model to simulate the energy performance associated to a commercial Gas adsorption Heat Pump, when H2NG (Hydrogen Enriched Natural Gas) blends are used as fuel. In detail, a water source heat…
Present research study explores the flame propagation and combustion characteristics of premixed hydrogen enriched natural gas under a 100 Hz low-frequency alternating-current (AC) electric field with various hydrogen blend ratios (0–100%) and…
Hydrogen holds enormous potential in helping the world achieve its decarbonization goals and is set to play a key role in the Energy Transition. However, two central building blocks are needed to make the hydrogen economy a reality: 1) a sufficient…
Utilization of hydrogen fuel in internal combustion engine is regarded as a good choice due to its zero-carbon emission. The experiments have been performed under a wide range of operating conditions and the traces of in-cylinder pressures are…
Petrochemicals are the main source of pollution that can be controlled with the implementation of hydrogen fuel in transportation sector due to the property of carbon free structure. In the present study, experiments of gas engine have been conducted…
The combination of hydrogen enrichment and pre-chamber initiated turbulent jet ignition was proposed to improve the combustion and performance of large bore gas engines. In order to clarify the effects of hydrogen enrichment level on the combustion…
The so-called blue hydrogen production process, integrates conventional fossil fuel-based production methods with carbon capture and storage technologies. This combination reduces total CO2 emissions, compared to conventional grey fossil-fuel-based…