scholarly journals Comparison of Life Cycle Greenhouse Gases from Natural Gas Pathways for Medium and Heavy-Duty Vehicles

2015 ◽  
Vol 49 (12) ◽  
pp. 7123-7133 ◽  
Author(s):  
Fan Tong ◽  
Paulina Jaramillo ◽  
Inês M. L. Azevedo
Keyword(s):  
Life Cycle ◽  
Natural Gas ◽  
Greenhouse Gases ◽  
Heavy Duty ◽  
Heavy Duty Vehicles

scholarly journals Liquefied Synthetic Natural Gas Produced through Renewable Energy Surplus: Impact Analysis on Vehicular Transportation by 2040 in Italy

Gases ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 80-91
Author(s):  
Linda Barelli ◽  
Gianni Bidini ◽  
Panfilo Andrea Ottaviano ◽  
Michele Perla
Keyword(s):  
Renewable Energy ◽  
Natural Gas ◽  
Greenhouse Gases ◽  
Renewable Energy Sources ◽  
Liquefied Natural Gas ◽  
Heavy Duty ◽  
Synthetic Natural Gas ◽  
Greenhouse Gases Emissions ◽  
Energy Surplus ◽  
Heavy Duty Vehicles

Time mismatch between renewable energy production and consumption, grid congestion issues, and consequent production curtailment lead to the need for energy storage systems to allow for a greater renewable energy sources share in future energy scenarios. A power-to-liquefied synthetic natural gas system can be used to convert renewable energy surplus into fuel for heavy duty vehicles, coupling the electric and transportation sectors. The investigated system originates from power-to-gas technology, based on water electrolysis and CO2 methanation to produce a methane rich mixture containing H2, coupled with a low temperature gas upgrading section to meet the liquefied natural gas requirements. The process uses direct air CO2 capture to feed the methanation section; mol sieve dehydration and cryogenic distillation are implemented to produce a liquefied natural gas quality mixture. The utilization of this fuel in heavy duty vehicles can reduce greenhouse gases emissions if compared with diesel and natural gas, supporting the growth of renewable fuel consumption in an existing market. Here, the application of power-to-liquefied synthetic natural gas systems is investigated at a national level for Italy by 2040, assessing the number of plants to be installed in order to convert the curtailed energy, synthetic fuel production, and consequent avoided greenhouse gases emissions through well-to-wheel analysis. Finally, plant investment cost is preliminarily investigated.

Greenhouse gases emissions in liquified natural gas as a marine fuel: Life cycle analysis and reduction potential

2021 ◽  
Author(s):  
Ahmad Al‐Douri ◽  
Abdulrahman S. Alsuhaibani ◽  
Margaux Moore ◽  
Rasmus Bach Nielsen ◽  
Amro A. El‐Baz ◽  
...  
Keyword(s):  
Life Cycle ◽  
Natural Gas ◽  
Greenhouse Gases ◽  
Life Cycle Analysis ◽  
Reduction Potential ◽  
Marine Fuel ◽  
Greenhouse Gases Emissions

scholarly journals 3 kW Thermoelectric Generator for Natural Gas-Powered Heavy-Duty Vehicles—Holistic Development, Optimization and Validation

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 15
Author(s):  
Lars Heber ◽  
Julian Schwab ◽  
Timo Knobelspies
Keyword(s):  
Natural Gas ◽  
Thermoelectric Generator ◽  
Functional Model ◽  
Simultaneous Optimization ◽  
Heavy Duty ◽  
Holistic Model ◽  
Average Deviation ◽  
Vehicle Class ◽  
Thermoelectric Modules ◽  
Heavy Duty Vehicles

Emissions from heavy-duty vehicles need to be reduced to decrease their impact on the climate and to meet future regulatory requirements. The use of a cost-optimized thermoelectric generator based on total cost of ownership is proposed for this vehicle class with natural gas engines. A holistic model environment is presented that includes all vehicle interactions. Simultaneous optimization of the heat exchanger and thermoelectric modules is required to enable high system efficiency. A generator design combining high electrical power (peak power of about 3000 W) with low negative effects was selected as a result. Numerical CFD and segmented high-temperature thermoelectric modules are used. For the first time, the possibility of an economical use of the system in the amortization period of significantly less than 2 years is available, with a fuel reduction in a conventional vehicle topology of already up to 2.8%. A significant improvement in technology maturity was achieved, and the power density of the system was significantly improved to 298 W/kg and 568 W/dm3 compared to the state of the art. A functional model successfully validated the simulation results with an average deviation of less than 6%. An electrical output power of up to 2700 W was measured.

Technical Evaluation and Life Cycle Assessment of Long-haul Heavy Duty Vehicles in 2050

2020 ◽  
Vol 13 (1) ◽  
pp. 56-61
Author(s):  
Aleksandar Lozanovski ◽  
Oliver Dingel ◽  
Torsten Semper ◽  
Andreas Geß
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Heavy Duty ◽  
Technical Evaluation ◽  
Heavy Duty Vehicles

Onboard Natural Gas Reforming for Heavy Duty Vehicles

2019 ◽  
Vol 12 (1) ◽  
pp. 45-56 ◽  
Author(s):  
Brian Weiss ◽  
Tilman W. Beutel ◽  
Bryan R. Chapman ◽  
Jonathan D. Saathoff ◽  
Shamel Merchant ◽  
...  
Keyword(s):  
Natural Gas ◽  
Heavy Duty ◽  
Natural Gas Reforming ◽  
Heavy Duty Vehicles

Application of PdCe-HMOR Catalyst as NOx CH4-SCR System for Heavy-Duty Vehicles Moved by Natural Gas

2016 ◽  
Vol 59 (10-12) ◽  
pp. 982-986 ◽  
Author(s):  
A. Nobre Mendes ◽  
V. Lauga ◽  
S. Capela ◽  
M. F. Ribeiro ◽  
P. Da Costa ◽  
...  
Keyword(s):  
Natural Gas ◽  
Heavy Duty ◽  
Scr System ◽  
Heavy Duty Vehicles

scholarly journals Well-to-Wheel analysis of natural gas for hybrid electric truck application

2021 ◽  
Vol 266 ◽  
pp. 04011
Author(s):  
F. Zhang ◽  
W.B. Nader ◽  
A. Zoughaib ◽  
X. Luo
Keyword(s):  
Life Cycle ◽  
Natural Gas ◽  
Recovery Phase ◽  
Gas Production ◽  
Heavy Duty ◽  
Compressed Natural Gas ◽  
Methane Leakage ◽  
Passenger Vehicles ◽  
Co2 Equivalent ◽  
Hybrid Electric

Compressed natural gas as an alternative fuel obviously has a great potential to reduce the greenhouse gas emissions. Although several studies on the life cycle are quite comprehensive for passenger vehicles, it is problematic to apply these results to heavy-duty electric hybrid trucks. This paper describes the Well-to-Wheel methodology for environmental impact from the gas production to its final application. The CO2 equivalent emissions and the methane leakage point will be identified at the end. The results indicate that compressed natural gas-based trucks have 18.7% less CO2 equivalent emissions than diesel-based ones. However, this benefit may be affected by methane leakage, particularly, in the recovery phase. Reducing methane emissions upstream could be an opportunity to optimize the pollution performance of heavy hybrid electric trucks.

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