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Mathematics ◽  
2022 ◽  
Vol 10 (2) ◽  
pp. 205
Author(s):  
Jingsi Huang ◽  
Wei Li ◽  
Xiangyu Wu

Many countries, including China, have implemented supporting policies to promote the commercialized application of green hydrogen and hydrogen fuel cells. In this study, a system dynamics (SD) model is proposed to study the evolution of hydrogen demand in China from the petroleum refining industry, the synthetic ammonia industry, and the vehicle market. In the model, the impact from the macro-environment, hydrogen fuel supply, and construction of hydrogen facilities is considered to combine in incentives for supporting policies. To further formulate the competitive relationship in the vehicle market, the Lotka–Volterra (LV) approach is adopted. The model is verified using published data from 2003 to 2017. The model is also used to forecast China’s hydrogen demand up to the year of 2030 under three different scenarios. Finally, some forward-looking guidance is provided to policy makers according to the forecasting results.


2022 ◽  
pp. 34-42
Author(s):  
Chih-Cheng Huang ◽  
Chun-Liang Lin
Keyword(s):  

Vehicles ◽  
2021 ◽  
Vol 3 (4) ◽  
pp. 851-871
Author(s):  
Jonathan Wellings ◽  
David Greenwood ◽  
Stuart R. Coles

The electric vehicle market is an increasingly important aspect of the automotive industry. However, as a relatively new technology, several issues remain present within the industry. An analysis is utilised to examine these issues, along with how they affect the industry and how they can be tackled. Several key issues that affect the electric vehicle market, as well as how efforts to address these issues influence the market, are identified. The analysis also includes the examination of ethical issues, with the issues that arise from the production of raw materials for electric vehicles. The analysis and examination of ethical issues display a wide range of problems in the industry. However, it did highlight the efforts being made to lessen the effect of these problems by various groups, such as regulation by EU and US governing bodies on the materials mined. From this analysis, this paper identifies that many of the other factors examined are directly or indirectly influenced by political and economic factors, also examined in this review. This highlights the impact that governing bodies and businesses have on a vast number of issues that are present within the market and how they can resolve the harmful factors examined.


Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7786
Author(s):  
Paweł Ziemba

All over the world, including Poland, authorities are taking steps to increase consumer interest in electric vehicles and sustainable transport as a way to reduce environmental pollution. For this reason, the electric vehicle market is dynamically and constantly developing, more and more modern vehicles are introduced to it, and purchases are often subsidized by the government. The aim of the article is to analyse the A–C segments of the Polish electric vehicle market and to recommend the most attractive vehicle from the perspective of sustainable transport. The aim of the research was achieved with the use of three multi-criteria decision aid (MCDA) methods, which deal well with the uncertainty and imprecision of data that occur in the case of many different parameters of electric vehicles. In particular, the following methods were used: the fuzzy technique for order of preference by similarity to ideal solution (TOPSIS), the fuzzy simple additive weighting (SAW) method, and the new easy approach to fuzzy preference ranking organization method for enrichment evaluation II (NEAT F-PROMETHEE II). Electric vehicle rankings obtained using each method were compared and verified by stochastic analysis. The conducted analyses and comparisons allowed us to identify the most interesting electric vehicles, which currently appear to be the Volkswagen ID.3 Pro S and Nissan LEAF e+.


2021 ◽  
Vol 23 ◽  
Author(s):  
Nicholas Taormina ◽  
Rahul Ainpudi

This paper examines the relationship between legal policy and the Electric Vehicle market in countries from around the world. As climate change has become an increasingly more important issue in modern society, heavy emphasis has been placed on environmentally conscious alternatives to many things used in daily life. Transportation, one of the largest and most polluting sectors of the economy, has seen many advances towards an eco-friendly future. Electric Vehicles, or EVs, have been lauded as the answer to heavily-polluting Internal Combustion Engines (ICE) by governments around the world. They have dumped large amounts of money in the form of tax breaks and subsidies into the EV sector, but it is unclear if that is really having an effect on the market. This study finds no correlation between the amount of money a government is offering to subsidize the purchase of EVs and the EV market share of the country. While EV law structure varies heavily between countries, the general contribution to the sector by governments is largely the same around the world.


2021 ◽  
Vol 321 ◽  
pp. 128834
Author(s):  
Esteban Lopez-Arboleda ◽  
Alfonso T. Sarmiento ◽  
Laura M. Cardenas

2021 ◽  
Vol 15 (3) ◽  
pp. 8428-8439
Author(s):  
Oscar Venegas ◽  
Luisa Mónico

Diesel engines have dominated the heavy duty and passenger vehicle market in the past 30 years. Consequently, the oil-derived fuels demand and the amount of pollutant emissions have witnessed exponential growth during the last three decades. Although Diesel engines present the advantage of higher efficiency and, therefore, lower levels of CO2 emissions,  they produce high levels of NOX and particulate matter. In order to face these difficulties, the use of alternative fuels started booming in the early 2000s and continue to gain influence today. Biodiesel stands out from the alternative fuels’ selection for its ease of use, production, storage and potential to reduce levels of particles, CO, HC and CO2. The main goal of this research is to experimentally determine the influence of palm oil biodiesel produced in Colombia on a Diesel engine’s behavior in terms of engine performance and pollutant emissions. As different mixtures of commercial Diesel and biodiesel at different operating conditions were tested, the results showed that it is possible to maintain the engine’s performance at acceptable levels and to, in some cases, reduce smoke density and NOX levels.


2021 ◽  
Vol 98 ◽  
pp. 102976
Author(s):  
Anders Fjendbo Jensen ◽  
Mikkel Thorhauge ◽  
Stefan Eriksen Mabit ◽  
Jeppe Rich

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