Prospects for energy efficiency improvement and reduction of emissions and life cycle costs for natural gas vehicles

Kozlov, Andrey; Теренченко, А. С.; Luksho, Vladislav Anatolievich; Карпухин, К. Е.

doi:10.1088/1742-6596/52/1/012096

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…CNG has lower life cycle costs and fuel cost in most analyses, with values ranging from 50% lower life cycle costs than diesel (Kozlov et al, 2017), to 2% reduction (Sen et al, 2017), to 16% average increase (Sen et al, 2019). CNG is most appropriate for large fleets that conduct urban operations and can support private infrastructure (Askin et al, 2015) and, considering the lower cost of CNG compared to diesel (Grigoratos et al, 2016), fleets can pay back the incremental vehicle cost via the use of low-cost natural gas fuel (Cai et al, 2017).…”

Section: Economic Analysesmentioning

confidence: 99%

Review of life cycle greenhouse gases, air pollutant emissions and costs of road medium and heavy‐duty trucks

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et al. 2021

WIREs Energy & Environment

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The desired energy transition to guarantee net-zero greenhouse gases (GHGs) emissions needs to take place in every sector of the global economy. The transport sector is responsible for a large share of energy consumption and GHGs emissions while contributing to the increase in air pollution. Although new technologies are available, the use of diesel in road transport is still predominant. These new technologies, nonetheless, still present inconsistencies in their environment, economic performances and do not necessarily provide improvements when considering the entire fuel life cycle used in medium and heavy-duty trucks. This systematic review addresses the uncertainties in life cycle studies regarding the road transport sector fuel consumption, GHGs, and air pollutant emissions economic analyses. Results show that there are higher chances of reducing GHGs emissions through biogas or fuel-cell hydrogen trucks, while PM 2.5 and NOx emissions have higher chances of being reduced with fuel-cell hydrogen or natural gas trucks. There is, however, a reduced interest by the scientific community in the transport literature in dealing with air pollutants, and the focus is mainly on GHGs emissions. When it comes to economic viability, natural gas and hybrid trucks are the best substitutes.

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Section: Economic Analysesmentioning

confidence: 99%

Review of life cycle greenhouse gases, air pollutant emissions and costs of road medium and heavy‐duty trucks

Machado

Teixeira

Collaço

et al. 2021

WIREs Energy & Environment

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“…The authors believe that their proposed methodology can be used in future connected vehicles, equipped with computing power, data storage capability and improved sensor technology to optimize emissions depending on the spatial location. The study [11] was devoted to a pilot research of the potential to reduce the greenhouse gas emissions and to improve the engines' energy efficiency using natural gas as the main fuel, and vehicle's dual-fuel engines on compared to conventional diesel engines. The article authors have performed a technical and economic assessment of the dual-fuel engines used in heavy-duty vehicles, taking into account the entire life cycle.…”

Section: Environmental Problems Caused By Motorizationmentioning

confidence: 99%

Compressed natural gas as motor fuel: possibilities, problems and solutions

Makarova

Shubenkova

Sadygova

2018

The Archives of Automotive Engineering – Archiwum Motoryzacji

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The article is devoted to the increase of the cargo vehicles market on the gas-engine fuel. The article considers the relevance of the use of the alternative types of transport’s fuels. As potential energy carriers for internal combustion engines, gas engine fuels are considered. Prospects and problems of using natural gas as motor fuel, as well as ecological and economic aspects of the use of compressed natural gas as fuel for vehicles are presented. Prospects for expanding the market for trucks powered by gas engine fuel are discussed, as well as the advantages of using natural gas as a safe, environmentally friendly and economical type of alternative fuel are considered. It is shown that the main obstacle to the expansion of the gas engine vehicles’ market is the underdevelopment of the infrastructure: filling stations and service centres. The organization of gas-cylinder vehicles (GCV) servicing is considered. The authors have developed an imitation model that allows determining the optimal number of repair stations for the service centre, as well as software for forecasting the required number of automobile gas filling compressor stations (AGFCS).

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“…The project was aimed toward developing a gas-fueled engine family derived from the diesel engine that was newly developed by the aforementioned HD vehicle manufacturer. One can find the details on the project and its results in References [7][8][9]. The main outcomes of the project were the gas-fueled engines (see example in Figure 1) operating with the Otto and Miller thermodynamic cycles.…”

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confidence: 99%

Comparative Study of Powertrain Hybridization for Heavy-Duty Vehicles Equipped with Diesel and Gas Engines

et al. 2020

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This article describes a study that aimed to estimate the fuel-saving potential possessed by the hybridization of conventional powertrains intended for heavy-duty vehicles based on diesel and natural gas fueled engines. The tools used for this analysis constitute mathematical models of vehicle dynamics and the powertrain, including its components, i.e., the engine, electric drive, transmission, and energy storage system (ESS). The model of the latter, accompanied by experimental data, allowed for an analysis of employing a supercapacitor regarding the selection of its energy content and the interface between the traction electric drive and the ESS (in light of the wide voltage operating range of supercapacitors). The results revealed the influence of these factors on both the supercapacitor efficiency (during its operation within a powertrain) and the vehicle fuel economy. After implementation of the optimized ESS design within the experimentally validated vehicle model, simulations were conducted in several driving cycles. The results allowed us to compare the fuel economy provided by the hybridization for diesel and gas powertrains in different driving conditions, with different vehicle masses, taking into account the onboard auxiliary power consumption.The complicating aspect of replacing diesel engines with gas engines is the necessity of having an onboard storage for the compressed or liquefied gas, which constitutes a complex system that has its own cost, service, safety, and other issues. Therefore, whether to choose a gas-based vehicle or stay conservative with a diesel-based option becomes a trade-off decision.During the past few years, the National Research Center "NAMI" has been conducting an R&D project in cooperation with one of the country's major producers of heavy-duty vehicles. The project was aimed toward developing a gas-fueled engine family derived from the diesel engine that was newly developed by the aforementioned HD vehicle manufacturer. One can find the details on the project and its results in References [7][8][9]. The main outcomes of the project were the gas-fueled engines (see example in Figure 1) operating with the Otto and Miller thermodynamic cycles. The engines were installed in vehicles intended for long-haul operations (also shown in Figure 1) and tested in road conditions.

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Prospects for energy efficiency improvement and reduction of emissions and life cycle costs for natural gas vehicles

Cited by 6 publications

References 14 publications

Review of life cycle greenhouse gases, air pollutant emissions and costs of road medium and heavy‐duty trucks

Review of life cycle greenhouse gases, air pollutant emissions and costs of road medium and heavy‐duty trucks

Compressed natural gas as motor fuel: possibilities, problems and solutions

Comparative Study of Powertrain Hybridization for Heavy-Duty Vehicles Equipped with Diesel and Gas Engines

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