Natural Gas Conversion Systems for Heavy Duty Truck Engines

1991 ◽  
Author(s):  
L.E. Gettel ◽  
G.C. Perry
Keyword(s):  
Natural Gas ◽  
Heavy Duty ◽  
Natural Gas Conversion ◽  
Heavy Duty Truck ◽  
Gas Conversion

Dual-Fuel System for Heavy Duty Truck Engines

2001 ◽  
Author(s):  
Usman Asad ◽  
Umar A. Shafique
Keyword(s):  
Natural Gas ◽  
Engine Performance ◽  
Dual Fuel ◽  
Heavy Duty ◽  
Operating Modes ◽  
Heavy Duty Truck ◽  
Light Load ◽  
Conversion System ◽  
Transportation Applications ◽  
Gas Conversion

Abstract Increasing emphasis on natural gas as a clean, economical and abundant fuel advocates its increasing use in transportation applications. In developing countries like Pakistan and India where, more than 80% of the goods are transported by trucks and where natural gas is available in abundance, development of natural gas conversion systems for heavy-duty truck engines offers a viable option to replace the use of expensive imported fuels. A complete dual-fuel (natural gas/diesel) conversion system developed using mostly commercially available components, for the Hino EC-100 diesel engine is described. Both diesel and natural gas operating modes are possible, without undermining normal engine performance as a diesel. The conversion system has performance similar to the ‘straight diesel’ operation, with comparable efficiency at full load. Furthermore, particulate and oxide of nitrogen (NOx) emissions are considerably lower than on diesel, however, carbon monoxide and hydrocarbon exhaust emissions are higher, particularly at light load.

Feasibility Analysis of Refuelling Infrastructure for Compressed Renewable Natural Gas Long-Haul Heavy-Duty Trucks in Canada

2021 ◽  
Author(s):  
Wahiba Yaïci ◽  
Michela Longo
Keyword(s):  
Natural Gas ◽  
Test Cases ◽  
Selling Price ◽  
Heavy Duty ◽  
Heavy Duty Truck ◽  
Transportation Sector ◽  
Depth Analysis ◽  
Harmful Emissions ◽  
Renewable Natural Gas ◽  
The Cost

Abstract 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 comparable usage to diesel and gasoline in vehicles. The idea of compressed RNG vehicles is being proposed especially because it will potentially significantly reduce harmful emissions into the environment. This initiative is taken in order to decrease vehicle emissions and support Canada’s commitments to the climate plans reinforcing active transportation infrastructure, in concert with new transit infrastructure, and zero emission vehicles. This study examines the feasibility of implementing a nationwide network of compressed RNG refuelling infrastructure in order to accommodate a conversion of Canada’s long-haul, heavy-duty truck fleet from diesel fuel to RNG. Two methods, Constant Traffic and Variable Traffic, along with data about compressed RNG infrastructure and vehicles, were developed and used to predict fuelling requirements for Canada’s long-haul, heavy-duty truck fleet. Then, a detailed economic analysis was conducted on various test cases to estimate how different variables impact the final selling price of RNG. This provided insight with the understanding of what factors go into pricing RNG and if it can compete against diesel in the trucking market. Results disclosed that the cost to purchase RNG is the greatest factor in the final selling price of compressed RNG. Due to the variability in RNG production however, there is no precise cost, which makes predictions difficult. However, results revealed that it is possible for compressed RNG to be competitive with diesel, with the mean compressed RNG price being 16.5% cheaper than diesel, before being taxed. Future studies should focus on the feasibility of the production of RNG and the associated costs, with emphasis on the Canadian landscape. An in-depth analysis on operational and maintenance costs for compressed RNG refuelling stations may also provide predictions that are more accurate.

Natural gas conversion on ZSM-5 zeolites modified with zirconium and molybdenum nanopowders

2009 ◽  
Vol 49 (1) ◽  
pp. 47-52 ◽  
Author(s):  
L. N. Vosmerikova ◽  
A. V. Vosmerikov ◽  
Ya. E. Barbashin ◽  
V. I. Zaikovskii ◽  
V. V. Kozlov
Keyword(s):  
Natural Gas ◽  
Natural Gas Conversion ◽  
Gas Conversion

Economics of natural gas conversion processes

1995 ◽  
Vol 42 (2-3) ◽  
pp. 65-83 ◽  
Author(s):  
Michael J. Gradassi ◽  
N. Wayne Green
Keyword(s):  
Natural Gas ◽  
Natural Gas Conversion ◽  
Gas Conversion
Sign in / Sign up

Export Citation Format

Share Document