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…
Concerns about environmental degradation and finite natural resources necessitate cleaner sources of energy for use in the transportation sector. In Canada, natural gas is currently being appraised as a potential alternative fuel for use in vehicles…
1 Scope This document provides requirements for operation of vehicles that use compressed natural gas (CNG) as a fuel for propulsion, covering various aspects of NGV workshops including activities, risk management, planning, personnel, layout,…
Existing technological trends in using of various types of gas motor fuel (GMF) on transport require more thorough control of the technical condition of motor vehicles running on GMF (compressed natural gas and compressed hydrogen) and infrastructure…
There are nearly 1000 million tons of oil and gas resources in the South China Sea, but 83% of the natural gas resources and 70% of the natural gas resources are in the deep water and 500 kilometers away from the mainland of China. How to effectively…
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…
We assessed freshwater consumption, greenhouse gas (GHG) emissions, and air emissions of using compressed and liquefied natural gas (NG) as transportation fuels by three heavy-duty NG vehicles (NGV) types from a wells-to-wheels (WTW) perspective. We…
Abstract Increasing urbanization and industrialization have led to a phenomenal growth in transportation demand worldwide, coupled with a concentration of vehicles in metropolitan cities. With regard to increasingly stringent emission legislation…
Marine transport of liquefied natural gas (LNG) is well established and extensive precedents for the design of the ships and tanks exist. Fewer precedents exist for the transport of compressed natural gas (CNG). This paper describes the application…
Concerns about environmental degradation and finite natural resources necessitate cleaner sources of energy for use in the transportation sector. In Canada, natural gas (NG) is currently being appraised as a potential alternative fuel for use in…
Hydrocarbon (HC) based Compressed Natural Gas (CNG) gas is highly flammable and can be threatening if not maintained and monitored correctly. Failure to detect gas leakage leads to property damage and poses a severe threat to human life. In this…
The paper presents the results of the analysis of compressed natural gas marine transportation based on ecological and economic criteria, the most economical and ecologically friendly ways of natural gas transportation that are needed to take…
Offloading hoses/flexible pipes are used to transfer compressed natural gas (CNG) from an intermediate floating storage and offloading unit (FSO) to CNG vessel (GASVESSEL). The floating hoses are subjected to environmental loads that are mainly…
The projected increase in the availability of gaseous fuels by growing popularity of household natural gas (NG) filling stations and the increase in the production of gaseous biogas-derived fuels is conducive to an increase in the use of NG fuel.…
Considerable gas storage rate (about 170 times as much as its volume) and self-preservation effect of natural gas hydrate (NGH) make itself as a favorable ways to storage and transport natural gas. Consequently, NGH has its own unique advantages when…
Biogas consisting primarily of methane (CH4) and carbon dioxide (CO2) can be upgraded to a transportation fuel referred to as renewable natural gas (RNG) by removing CO2 and other impurities. RNG has energy content comparable to fossil compressed…
Areas located at or near natural gas (NG) well or storage sites can use NG to partially or totally replace the diesel fuel used to power equipment or for local transportation. This study investigated a dual-fuel diesel-NG engine operating at low load…
Abundant supply, low prices, and low carbon content may result in an increased use of natural gas (NG) as an alternative transportation fuel. Assessments of the associated climate benefits are sensitive to the climate metric and time horizon selected…
Hydrogen energy is an important energy carrier for China to achieve the target of "carbon emission peak before 2030 and carbon neutrality before 2060", while the lack of motivation for infrastructure development is a critical factor in restricting…
Compressed natural gas (CNG) and liquefied petroleum gas (LPG) are included in the group of promoted transport fuel alternatives for traditional fossil fuels in Europe. Both CNG and LPG fueled vehicles are believed to have low particle number and…
The continuous population increase in many developing and developed countries leads to an increase in CO2 and SO2 emissions and oil consumption at an alarming rate in many sectors, mainly the transportation sector. As a result, natural gas is rapidly…
Within the context of the energy transition, there are several alternatives under study for the gradual replacement of diesel fuel based urban transport vehicles. This paper proposes an answer to the following question: Which bus technology and…
Following the tendency of sustainable development, compressed natural gas as an alternative fuel has been expanded applied in the transportation sector these years. Although several studies on the life cycle are quite comprehensive for passenger…
In response to environmental, energy, and efficiency problems of conventional vehicles, research and innovation on potential electrical, hydrogen, pneumatic, and hybrid solutions have recently been carried out by numerous researchers. The current…
The need to deploy an alternative transport fuel other than petroleum in Tanzania is based on the increasing cost, perpetual scarceness of petroleum and excessive road emissions. The compressed natural gas (CNG) economic and environmental assessment…
Growing estimates of natural gas resources, including a new category of unconventional gas, suggest that accessible supplies of this least carbon-intensive of the fossil fuels may play a starring role in the green energy transition. This creates new…
More than 2,600 trillion cubic feet (Tcf) of natural gas reserves are considered as stranded internationally, outside of North America (i.e., not connected to production). This figure is essentially equal to the 2,800 Tcf currently connected to…
Adsorbed natural gas is a recent and viable fuel source to replace gasoline or diesel in cars, trucks and other passenger vehicles. Previously, 5 types of tanks have been developed that can be used for storage and transportation of compressed natural…
District cooling systems (DCSs) are networks able to distribute thermal energy, usually as chilled water, from a central source to industrial, commercial, and residential consumers, to be used for space cooling/dehumidification. As cooling demand…
Liquefied natural gas (LNG) has an important role in the global industry and energy balance. The use of this energy carrier has been increasing for last decades. The broad development of the LNG sector has been noticeable in the search for new supply…
Natural gas has been promoted rapidly recent years to substitute traditional vehicle fuels. However, methane leakages in the natural gas supply chains make it difficult to ascertain whether it can reduce greenhouse gas emissions when used as a…
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 availability of alternative fuels for transportation means using renewable energy is an essential factor for achieving sustainable development. Natural gas use is increasing, and it ranks as one of the most often consumed alternative fuels for…
Natural gas transportation fuels are credited in prior studies with greenhouse gas emissions savings relative to petroleum-based fuels and relative to the total emissions of biofuels. These analyses, however, overlook a source of potentially large…
In much of the world, compressed natural gas (CNG) has been a long recognized alternative transportation fuel due to the fact that it is domestic, one of the cleanest burning and most affordable alternative transportation fuel available – directly…
Compressed natural gas (CNG) has been recently proposed as a potentially economical alternative to liquefied natural gas (LNG) for marine transportation of relatively modest amounts of natural gas over short distances. Because the main capital…
Natural gas is considered a potentially available and ecologically preferable fuel, comparing to other liquid fossil fuels. Safe and sustainable energy storage device is one of the bases for changing the current energy systems. The system is to use…
Compressed air energy storage (CAES) stores energy as compressed air in underground formations, typically salt dome caverns. When electricity demand grows, the compressed air is released through a turbine to produce electricity. CAES in the US is…
The aim of the present work is to provide further guidance into better understanding the production mechanisms of soot emissions in Spark-Ignition SI engines fueled with compressed natural gas. In particular, extensive experimental investigations…
Despite intensive research carried out on particulates, correlation between engine-out particulate emissions and adverse health effects is not well understood yet. Particulate emissions hold enormous significance for mega-cities like Delhi that have…
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…
In vehicles fueled with compressed natural gas, a variation in the fuel composition can have non-negligible effects on their performance, as well as on their emissions. The present work aimed to provide more insight on this crucial aspect by…
Technology developments in directional drilling and hydraulic fracturing have led to increased natural gas reserves. Development of these unconventional resources is an energy intensive process. Prime-movers of unconventional well development were…
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…
The paper presents the results of examination of particulate matter emission from the Diesel engine FPT 1.3 MJT simultaneously fuelled with diesel oil and natural gas CNG. The basic premise for engine adaptation was the addition of a small amount of…
The demand for higher output efficiencies, greater specific power output, increased reliability, and ever reduced emissions has been rising. One promising alternative is the use of a gaseous fuel as partial supplement to liquid fuel. In this study,…
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…
The disadvantages of the separate use of gasoline and CNG pose great challenges to the development of spark ignition (SI) engines. One of the major obstacles to achieving higher thermal efficiency in gasoline engines is the knocking phenomenon. One…
Compressed natural gas/Diesel dual-fuel combustion mode, the partial replacement of diesel fuel with cleaner fuel, is one of the most important strategies to achieve clean efficient combustion. Thus, the current work investigated the effect of…