Fleet Inspection of Compressed Natural Gas Cylinders for Natural Gas Vehicles Using Source Location Acoustic Monitoring

1996 ◽  
Author(s):  
Mark P. Connolly ◽  
Han Dinh
Keyword(s):  
Natural Gas ◽  
Acoustic Monitoring ◽  
Source Location ◽  
Compressed Natural Gas ◽  
Natural Gas Vehicles ◽  
Gas Cylinders

Compressed natural gas vehicles: Motoring towards a cleaner Beijing

1997 ◽  
Vol 56 (3-4) ◽  
pp. 395-405 ◽  
Author(s):  
Ming Yang ◽  
Terry Kraft-Oliver ◽  
Guo Xiao Yan ◽  
Wang Tian Min
Keyword(s):  
Natural Gas ◽  
Compressed Natural Gas ◽  
Natural Gas Vehicles

Feasibility Study of Medium- and Heavy-Duty Compressed Renewable/Natural Gas Vehicles in Canada

2020 ◽  
pp. 1-41
Author(s):  
Wahiba Yaïci ◽  
Hajo Ribberink
Keyword(s):  
Natural Gas ◽  
Feasibility Study ◽  
Fuel Economy ◽  
Economies Of Scale ◽  
Fuel Cycle ◽  
Motor Fuel ◽  
Analysis Tool ◽  
Heavy Duty ◽  
Compressed Natural Gas ◽  
Natural Gas Vehicles

Abstract 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 vehicles for both medium and heavy-duty use due to its relatively lower costs compared to that of conventional fuels. The idea of compressed natural gas vehicles (CNGVs) is being mooted as inexpensive for fleet owners and especially because it will potentially significantly reduce harmful emissions into the environment. A short feasibility study was conducted to ascertain the potential for reduced emissions and savings opportunities presented by CNGVs and renewable NGVs (RNGVs) in both medium and heavy-duty vehicles. The study which is discussed in the present paper was carried out on long-haul trucking and refuse trucks respectively. Emphasis was laid on individual vehicle operating economics and emissions reduction, and the identification of practical considerations for both the individual application and CNGVs/RNGVs as a whole. A financial analysis of the annual cost savings that is achievable when an individual diesel vehicle is replaced with a CNG vehicle was also presented. This paper drew substantial references from published case studies for relevant data on maintenance costs, fuel economy, range, and annual distance traveled. It relied on a summary report from Argonne National Laboratory's GREET (Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation) [18] for its discussion on relative fuel efficiency penalties for heavy-duty CNGVs. The fuel cost figures were mostly drawn from motor fuel data of the Ontario Ministry of Transportation, since the Ministry is one of the few available sources of compressed natural gas fuel prices. Finally, the GHGenius life-cycle analysis tool [19] was employed to determine fuel-cycle emissions in Canada for comparison purposes. The study produced remarkable findings. Results showed that compared to diesel-fuelled vehicles, emissions in CNG heavy-and-medium-duty vehicles reduced by up to 8.7% (for well-to-wheels) and 11.5% (for pump-to-wheels) respectively. Overall, the most beneficial application appeared to be long-haul trucking based on the long distances covered and higher fuel economy achieved (derived from economies of scale), while refuse trucks appeared to have relatively marginal annual savings. However, these annual savings are actually a conservative estimate, which will ultimately be determined by a number of factors that are likely to be predisposed in favour of NG vehicles. Significantly, the prospect of using RNG as fuel was found to be a factor for improving the value proposition of refuse trucks in particular, certainly from an emissions standpoint with a reduction of up to 100%, but speculatively from operational savings as well.

scholarly journals Heat and Mechanical Response Analysis of Composite Compressed Natural Gas Cylinders at Vehicle Fire Scenario

2015 ◽  
Vol 130 ◽  
pp. 1425-1440
Author(s):  
K.S. Ou ◽  
J. Zheng ◽  
W.J. Luo ◽  
X.F. Li ◽  
H.S. Hu ◽  
...  
Keyword(s):  
Natural Gas ◽  
Mechanical Response ◽  
Response Analysis ◽  
Compressed Natural Gas ◽  
Fire Scenario ◽  
Gas Cylinders

scholarly journals Justification for the Conversion of a Combine Harvester to Operate on Compressed Natural Gas

2019 ◽  
pp. 78-86
Author(s):  
Andrey Ivanov
Keyword(s):  
Natural Gas ◽  
Agricultural Sector ◽  
Economic Effect ◽  
Motor Fuel ◽  
Environmentally Friendly ◽  
Liquid Fuels ◽  
Agricultural Machinery ◽  
Compressed Natural Gas ◽  
Combine Harvester ◽  
Gas Cylinders

The article considers the issue of expanding the use of gas motor fuel in the agricultural sector on agricultural machinery. Several regulatory documents on the regulation of relations in the use of gas motor fuels and on energy conservation and energy efficiency in agriculture are indicated. It was noted that the conversion of agricultural machinery, in particular, combine harvesters to compressed natural gas, has been little studied and little attention has been paid to this, although this area is promising, especially for the Tyumen region of Russia, since it has huge reserves of natural gas. The use of natural gas as a motor fuel on a combine harvester is more expedient than the use of liquid fuels, since such gas is a more economical, safe, environmentally friendly and environmentally friendly type of fuel. An Acros-530 combine harvester was chosen as the object of study. The purpose of the study is to increase the efficiency of the combine by converting it to work on gas fuel. The technical characteristics of the gas engine Yaroslavl Engine Plant-53644 CNG, which is proposed to be used instead of a regular diesel engine, are considered. Analysis of the design of the Acros-530 combine allowed us to determine the place for placing gas cylinders, as well as the mounting points of the developed frame designs on which gas cylinders will be mounted. It is planned to install 9 cylinders with a capacity of 276.9 cubic meters on the combine. m compressed natural gas. An analysis of the technological operations of grain harvesting using a gas processor showed the possibility of achieving an annual economic effect for a field of 1,500 hectares of more than 100,000 rubles, mainly due to a reduction in fuel costs by 3.5–4.5 times.

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