scholarly journals Hydrogen Technology towards the Solution of Environment-Friendly New Energy Vehicles

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4892
Author(s):  
Murat Peksen

The popularity of climate neutral new energy vehicles for reduced emissions and improved air quality has been raising great attention for many years. World-wide, a strong commitment continues to drive the demand for zero-emission through alternative energy sources and propulsion systems. Despite the fact that 71.27% of hydrogen is produced from natural gas, green hydrogen is a promising clean way to contribute to and maintain a climate neutral ecosystem. Thereby, reaching CO2 targets for 2030 and beyond requires cross-sectoral changes. However, the strong motivation of governments for climate neutrality is challenging many sectors. One of them is the transport sector, as it is challenged to find viable all-in solutions that satisfy social, economic, and sustainable requirements. Currently, the use of new energy vehicles operating on green sustainable hydrogen technologies, such as batteries or fuel cells, has been the focus for reducing the mobility induced emissions. In Europe, 50% of the total emissions result from mobility. The following article reviews the background, ongoing challenges and potentials of new energy vehicles towards the development of an environmentally friendly hydrogen economy. A change management process mindset has been adapted to discuss the key scientific and commercial challenges for a successful transition.

Author(s):  
Dmitriy Ya. Rozhko

In urban areas, the transport sector is one of the main sources of significant energy consumption and carbon emissions. Although diesel and gasoline are still the main sources of energy used in urban transport, more and more attention is now being paid to alternative and transitional sources of energy, as they are renewable and have less negative impact on the environment. However, the successful use of alternative energy sources can be hindered by various technical, economic and political factors. This article discusses the latest literature on alternative and transitional energy sources in order to understand the possibility of their use in urban transport at present, as well as the possibility of introducing these sources in the future


Author(s):  
V.A. Zolotov ◽  

The article presents some features of new technologies in the field of improving transport and its inherent environmental aspects of the use of lubricating oils and alternative energy sources in modern conditions of development of the global economy. Transport enjoys a predominant share in the consumption of lubricants in the world market and in fact about 57 % of the world production volume is used in this sector of the economy. In accordance with global trends, the design development of traditional reciprocating internal combustion engines is carried out in conjunction with the development and implementation of environmental requirements for them in the largest economies in the world - European Union standards (Euro-7), India (Bharat Stage VI - the equivalent of Euro-6 standard) and China (China 6 is a more stringent version of the Euro-6 standard), aimed at reducing exhaust emissions. Actual additions to the SAE J300 classification include relatively low kinematic viscosity of oils, which allows engine manufacturers to meet the requirements of environmental standards that regulate emission of particles with exhaust gases and fuel economy - reducing fuel consumption. The advent of electric vehicles is having an increasing impact on transport and energy infrastructure. This long-term trend will also affect the manufacturing sector, where demand for traditional lubricants is expected to decline. The transport market today is making progress towards reducing carbon dioxide emissions and increasing fuel economy. Despite this, further investments by the automotive industry in improving the design of piston engines around the world are declining, and the supply of new engines for car manufacturers after 2021 is predictably reduced.


2012 ◽  
Vol 7 (1-2) ◽  
pp. 237-267
Author(s):  
Leanne Piggott

In this article, I state that the IEA predicts that global energy usage will continue to increase over the next twenty years by as much as 45%, driven largely by the emerging economies of North and South Asia. This assessment is most pertinent in relation to oil, which currently accounts for the largest share of global energy use due to the oil dependence of the transport sector. I point out that the major supplier of oil to the global market, West Asia’s Arabian/Persian Gulf, is also experiencing relatively high energy consumption growth, and the Gulf states have thus found themselves confronted with the paradox of needing to develop alternative energy sources for their own domestic use while requiring the world’s traditional dependence on oil to continue so that they can maintain their export revenues. To the extent that alternative energy sources are developed, the commerciality of the oil reserves of supplier states is made less secure. The article explains how the growth in oil consumption has also raised questions about the medium to long-term security of supply for Asian oil-importing states which have invested substantially in supply contracts and in acquiring equity in upstream production in the Gulf. I examine both the potential threats and benefits that might arise from this emerging trans-Asian oil nexus including the increasing dependence by Asian oil importers on supplies from an inherently unstable region, and the pursuit of alternate technologies by suppliers and consumers.


2020 ◽  
Vol 12 (14) ◽  
pp. 5565 ◽  
Author(s):  
Najmul Hoque ◽  
Wahidul Biswas ◽  
Ilyas Mazhar ◽  
Ian Howard

Environmental obligation, fuel security, and human health issues have fuelled the search for locally produced sustainable transport fuels as an alternative to liquid petroleum. This study evaluates the sustainability performance of various alternative energy sources, namely, ethanol, electricity, electricity-gasoline hybrid, and hydrogen, for Western Australian road transport using a life cycle sustainability assessment (LCSA) framework. The framework employs 11 triple bottom line (TBL) sustainability indicators and uses threshold values for benchmarking sustainability practices. A number of improvement strategies were devised based on the hotspots once the alternative energy sources failed to meet the sustainability threshold for the determined indicators. The proposed framework effectively addresses the issue of interdependencies between the three pillars of sustainability, which was an inherent weakness of previous frameworks. The results show that the environment-friendly and socially sustainable energy options, namely, ethanol-gasoline blend E55, electricity, electricity-E10 hybrid, and hydrogen, would need around 0.02, 0.14, 0.10, and 0.71 AUD/VKT of financial support, respectively, to be comparable to gasoline. Among the four assessed options, hydrogen shows the best performance for the environmental and social bottom line when renewable electricity is employed for hydrogen production. The economic sustainability of hydrogen fuel is, however, uncertain at this stage due to the high cost of hydrogen fuel cell vehicles (HFCVs). The robustness of the proposed framework warrants its application in a wide range of alternative fuel assessment scenarios locally as well as globally.


Author(s):  
Gabor Szendro ◽  
Maria Csete ◽  
Adam Torok

Due to the increasing energy demand and mobility of the human population and in order to pursue sustainable development and decrease fossil fuel dependency there is a major need to use alternative energy sources. Nowadays the 20-20-20 policy is under revision. It has become clear that the transport sector on the EU level will not be able to meet the goal of 20% usage of renewable energy sources by 2020. Our paper investigates the possibilities of Hungary for reaching 10% of renewable energy sources in transport sector. Our research indicates that blending bioethanol and biodiesel with conventional fuels is not sufficient not provide an effective and alternative way to fulfill 10% part of transport-related energy demand. Further efforts are needed that can only be done by deep analysis of the current situation and active participationin policymaking as an additional tool of reaching the target: changing our social behaviour. Furthermore, our investigationshows that this general problem can occur not only in Hungary but in those European countries that targeted the 10% renewable energy share in their transport sector. Santrauka Dėl vis kylančio energijos poreikio ir gyventojų mobilumo bei siekiant įgyvendinti tvariosios plėtros principus, sumažinti priklausomybę nuo iškastinio kuro, didėja būtinumas naudoti alternatyviuosius energijos išteklius. Svarbu konkrečiau apibrėžti projekto „20–20–20“ tikslus. Akivaizdu, Europos Sąjungos lygiu transporto sektoriui nepavyks įgyvendinti, kad iki 2020 m. atsinaujinantys šaltiniai būtų naudojami 20 proc. Nagrinėjamos Vengrijos transporto sektoriaus galimybės alternatyviuosius energijos šaltinius naudoti 10 proc. Atlikus tyrimus nustatyta, kad maišyti bioetanolį ir biodyzeliną su įprastiniu kuru nėra pakankama priemonė, kad taptų efektyvia alternatyva ir transportui būtinos energijos poreikį patenkintų 10 proc. Būtinos tolesnės pastangos, dalyvaujant suinteresuotosioms šalims, išsamiai analizuoti esamą situaciją ir keisti socialinę elgseną, kad tai taptų papildoma priemone siekiant tikslo. Nustatyta, kad ši bendrojo pobūdžio problema gali kilti ne tik Vengrijoje, bet ir tose Europos šalyse, kuriose užsibrėžta atsinaujinančius šaltinius transporto srityje naudoti 10 proc.


1970 ◽  
Vol 8 (1-2) ◽  
pp. 105-112
Author(s):  
Souvik Ganguli ◽  
Sunanda Sinha

The depletion of fossil fuel resources on a worldwide basis has necessitated an urgent search for alternative energy sources to meet present day demands. Solar energy is a clean, inexhaustible and environment-friendly potential renewable energy option. A stand-alone solar photovoltaic cannot provide a continuous supply of energy due to seasonal and periodic variations. Therefore, in order to satisfy load demand, grid connected energy systems are now being implemented that combine solar and conventional conversion units. The objective of this work is to estimate the potential of grid quality solar photovoltaic power in the Birbhum district of West Bengal and develop a system based on the potential energy estimated for an available land area of 100 m2. Specific equipment specifications are utilized based on the availability of components in India.Key Words: Diurnal variations; Daily Energy Output; Monthly Energy Output; Grid Connected Photovoltaic (PV) System; PWM Inverters; Solar Radiation; Yearly Energy OutputDOI: http://dx.doi.org/10.3126/jie.v8i1-2.5100Journal of the Institute of Engineering Vol. 8, No. 1&2, 2010/2011Page: 105-112Uploaded Date: 20 July, 2011


Sign in / Sign up

Export Citation Format

Share Document