scholarly journals Alternative and Transitional Energy Sources for Urban Transport

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):  
Karyna Karakhanian ◽  

The article considers the legal basis for the formation and development of the country's energy sector, in particular, the issue of energy production from renewable sources, among which the leading place belongs to wind energy. The tendencies of the world energy market, which minimize the negative impact on the environment, as well as the tendencies of development of this branch in Ukraine are investigated. It was stated that for our country wind energy is one of the strategic directions of development of the sector of alternative energy sources, given the high dependence of the country on imported energy, primarily natural gas, and significant potential for wind power, taking into account the location, climate and terrain. However, unfortunately, the pace of development of wind energy in Ukraine still lags significantly behind European ones. It is noted that the legislative provision of the use of wind energy in Ukraine as a source of alternative energy is characterized primarily by the number of bylaws, general declarative legislation, as well as some inconsistencies in legal regulation. An analysis of current legislation and a number of regulations governing the development of the industry in general and wind energy in particular. A review of the norms that relate purely to the issues of the research area and their features and direction of legal regulation. In addition, it was stressed that Ukraine's accession to European initiatives, as well as borrowing international experience in this area should positively affect the energy balance and ensure the development of the sector, in particular, in the light of the need to create a full competitive environment in Ukraine's energy market; changes in heat generation by renewable energy sources and the full transformation of coal regions, which means the gradual closure of unprofitable enterprises with the parallel creation of alternative jobs in these regions.


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.


2021 ◽  
Vol 12 (4) ◽  
Author(s):  
Holub Svitlana ◽  
◽  
Shynkaruk Nataliia ◽  

The article explores the features of the legal regulation of bioenergy in the European Union, analyses the concepts of bioenergy and biofuels in Ukrainian and European legislation and highlights the main provisions of the European Union Directives, concerning the promotion of the use of energy from renewable sources, including biomass. In particular, bioenergy has been identified in the EU as the leading source of renewable energy for heating and cooling (88 per cent of all RES), representing 16 per cent of the total European final energy consumption in this sector. Consequently, in view of the demand for and the need to use such a resource, the EU legislative framework contains a number of principles (bases) and mandates for regulating the relationship in the area of manufacturing, handling and decontamination of waste biofuels as a primary feedstock for bioenergy. In particular, the fundamental principles of the EU bioenergy legislation are, first, the principle of sustainable production and consumption of biomass, and second, the prevention of reduction of negative impacts from the use of this resource, Third, increasing the share of alternative energy sources to 75 % of final energy consumption by 2050. Keywords: bioenergy, permanence, alternative energy sources, biofuels


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.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Natei Ermias Benti ◽  
Gamachis Sakata Gurmesa ◽  
Tegenu Argaw ◽  
Abreham Berta Aneseyee ◽  
Solomon Gunta ◽  
...  

AbstractDespite enormous challenges in accessing sustainable energy supplies and advanced energy technologies, Ethiopia has one of the world's fastest growing economies. The development of renewable energy technology and the building of a green legacy in the country are being prioritized. The total installed capacity for electricity generation in Ethiopia is 4324.3 MW as on October, 2018. Renewable energy accounts for 96.5% of total generation; however, despite the county's enormous biomass energy potential, only 0.58% of power is generated using biomass. Ethiopia has surplus woody biomass, crop residue and animal dung resources which comprise about 141.8 million metric tons of biomass availability per year. At present the exploited potential is about 71.9 million metric tons per year. This review paper provides an in-depth assessment of Ethiopia's biomass energy availability, potential, challenges, and prospects. The findings show that, despite Ethiopia's vast biomass resource potential, the current use of modern energy from biomass is still limited. As a result, this study supports the use of biomass-based alternative energy sources without having a negative impact on the socioeconomic system or jeopardizing food security or the environment. This finding also shows the challenges, opportunities and possible solutions to tackle the problem to expand alternative energy sources. The most effective techniques for producing and utilizing alternate energy sources were also explored. Moreover, some perspectives are given based on the challenges of using efficient energy production and sustainable uses of biomass energy in Ethiopia as it could be also implemented in other developing countries. We believe that the information in this review will shed light on the current and future prospects of biomass energy deployment in Ethiopia.


2017 ◽  
Vol 6 (1) ◽  
pp. 1-12
Author(s):  
V. Saravanan ◽  
M. Aravindan ◽  
V. Balaji ◽  
M. Arumugam

Need for alternative energy sources to satisfy the rising demand in energy consumption elicited the research in the area of power converters/inverters. An increasing interest of using Z source inverter/converter in power generation involving renewable energy sources like wind and solar energy for both off grid and grid tied schemes were originated from 2003. This paper surveys the literature of Z source inverters/converter topologies that were developed over the years.


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.


2017 ◽  
Vol 5 (1) ◽  
pp. 12-16
Author(s):  
Luboš Socha ◽  
Vladimír Socha ◽  
Peter Čekan ◽  
Daniela Čekanová ◽  
Lenka Hanáková ◽  
...  

The problem of environmental load is also reflected in air transport. Usage of fossil fuels, which are dominant nowadays, has a negative impact on the environment and also its resources are limited. Therefore, the article focuses on the prospective of use of other energy sources in aviation, such as alternative fuels (synthetic fuels, biofuels, alcohol, methane, hydrogen), solar energy and the use of fuel cells. Also, the paper briefly summarizes the approach of aircraft manufacturers to the use alternative sources.


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