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Tytuł:
Comparative analysis of the weight and quality of urban bus transport services: a case study of Baku
Autorzy:
Dashdamirov, Fuad
Javadli, Ulvi
Verdiyev, Turan
Powiązania:
https://bibliotekanauki.pl/articles/2203069.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
public transport
bus
service quality
alternative transport
transport publiczny
autobus
jakość usług
transport alternatywny
Opis:
With the growth of the population and the expansion of the territory of large cities, certain difficulties arise in meeting the needs of passengers for transportation. This article studied the satisfaction of users with the city's public transport system, especially the bus transport. Thus, a survey was conducted among passengers in Baku to assess their satisfaction with public transport. The survey covered all districts of Baku in general. The study was conducted in October 2021. The questions were aimed at identifying the weight, reasons for preferring the different types of public transport, the level of satisfaction of the population with these types, assessing the quality of services and the lack of urban bus transport. The level of satisfaction of survey participants with the work of public transport by gender and age groups was determined. Subsequently, this study showed that most of the population movements are carried out by bus transport. The analysis revealed factors that reduce the quality of service on bus routes. In addition, it examined the reasons why the population chose the bus transport, the shortcomings of the bus transport, the effectiveness of dedicated bus lanes, and attitudes toward the use of alternative public transport. Summarily, this study was passenger service to increase passenger satisfaction toward attracting more people to public transport.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2022, 116; 99--111
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Focus Group Interviews Employed in the Research Analysing Young Adults’ Behaviour on the Market of Alternative Means of City Transport
Autorzy:
Szymańska, Anna Irena
Powiązania:
https://bibliotekanauki.pl/articles/1193110.pdf
Data publikacji:
2020-09-28
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
alternative city transport
carsharing
FGI
focus group interview
ride-sourcing
sharing economy
vehicle-sharing
Opis:
Shared transportation, directly corresponding to research on the sharing economy, is an important issue, directly linked with the issue of city transport, as well as that of alternative transport when analysed from a broader perspective. Forms of alternative city transport may be classified into two basic groups, different in terms of the manner in which they use their shared vehicles. It is either ride-sourcing or vehicle-sourcing (further broken down to car-sharing, bike-sharing and scooter-sharing). All the above-specified forms require access to a mobile app or a website and, consequently, some Internet and app-using skills, so it is obvious that they are predominantly used by young people. The fact prompted the author to research consumer behaviour in the sharing economy area among young people, who are regular users of the public transport available in Krakow. The research was conducted on a group of 96 respondents using qualitative method (FGI). The objective of the research was to identify the factors which determine some specific mobile behaviours in young adults in the area of alternative forms of the public transport, as well as identification of these forms of transport which are preferred and most popular among users. With all certainty, alternative forms of transport represent an attractive transportation offer addressed to young people, complementing the city transport system. Young people pointed to the particular importance of hedonistic factors prevailing n their choices, as they particularly appreciated reaching their destination in a fast, pleasant and comfortable anner, as well as the feeling of independence and freedom. However, alternative transport was certainly not hosen for reasons related to the environmental protection or economic aspects.
Źródło:
Prace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego; 2020, 34, 3
2080-1653
Pojawia się w:
Prace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of alternative individual means of transport development on decisions of urban
Wpływ rozwoju alternatywnych środków transportu indywidualnego na decyzje mieszkańców miast w zakresie planowania podróży
Autorzy:
Cieśla, Maria
Orzech, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/309938.pdf
Data publikacji:
2019
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
travel planning
alternative modes of transport
transport preferences
transport needs
planowanie podróży
alternatywne środki transportu
preferencje transportowe
potrzeby transportowe
Opis:
The article discusses the problem of choosing individual means of transport by urban residents when planning trips. Types and benefits of using alternative means of individual transport in cities were demonstrated. Then the decision-making process of users as well as motivations and transport needs of the population were presented. The aim of the research article was to analyze the preferences of residents in the field of choices for alternative, environmentally friendly means of transport.
W artykule omówiony został problem wyboru środków transportu indywidualnego przez mieszkańców miast podczas planowania podróży. Wykazano rodzaje i korzyści wykorzystywania alternatywnych środków transportu indywidualnego w miastach. Następnie przedstawiono proces decyzyjny użytkowników oraz motywacji i potrzeb transportowych ludności. Celem badawczym artykułu była analiza preferencji mieszkańców w zakresie wyborów dotyczących alternatywnych, proekologicznych środków transportu.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2019, 20, 12; 229-232
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Swedish Urban Transport Model Powered by Biomethane
Autorzy:
Żółtowski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/504088.pdf
Data publikacji:
2019
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
urban transport
alternative fuels
biomethane
Opis:
In the recent years, the European Community has been implementing a plan to increase the share of renewable fuels used for energy production and powering vehicles. It aims to partially reduce the dependence on crude oil imports and reduce CO2 emission. Particularly interesting are the achievements of Sweden against this background, for which the European Commission has set the highest value of the indicator, and to implement which Sweden adopted unconventional solutions across Europe. One of them is the plan to eliminate by the 2030 fossil fuels from the urban transport, and one of the fuels that is to replace today still widely used diesel oil, would be biomethane. The article describes the reasons and circumstances which made Sweden use biomethane to power buses used in urban transport on a very large scale, in comparison with other European countries. The article shows the characteristics of this fuel, the method of its production and application prospects.
Źródło:
Logistics and Transport; 2019, 41, 1; 137-143
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of selected operating parameters of engine powered by a mixture of biocomponents and diesel oil
Autorzy:
Markiewicz-Patalon, M.
Muślewski, Ł.
Kaszkowiak, J.
Knopik, L.
Powiązania:
https://bibliotekanauki.pl/articles/244467.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
means of transport
diesel oil
biocomponent
alternative fuels
Opis:
Reaching of high parameters of a drive unit and low pollution of the natural environment is considered to be the most desired effect of motorization. The use of the additive in the form of fatty acid methyl esters to the diesel oil, assumes lowering of harmful fuel gases’ emission and reaching high operating parameters of an engine, such as power and turning moment. Studies on the power output and the turning moment of an engine with self-ignition are presented in the study. The subject matter of the studies was a combustion engine with self-ignition of the power of 80 kW with the direct common rail system and turbo-compressor’s supercharging and with electromagnetic injectors. The tested engine was powered with diesel oil and the mixture of fatty acid methyl esters and the diesel fuel, in proportions 10%, 30% and 50% with an improver, at the standard settings of the fuel injection controllers. The vehicle used for the testing purposes, has been singled out with respect to the specific features, such as: universality of its use as a means of transportation and the opportunity of modification of the injection parameters, resistance to possible unfavourable consequences resulting from the use of the fuel mixture. The studies were conducted on a chassis test house, at full engine’s loading. The vehicle placed on the test house’s rollers, was strapped with belts to the foundation, and then accelerated up to the specific speed and subjected to loading standing in place. In such a manner, the road conditions were simulated. The obtained results of the tests were subject to the statistical analysis. From their analysis it results, that application of the mixture lowers the engine’s parameters to a degree unnoticeable at the time of its operation.
Źródło:
Journal of KONES; 2018, 25, 2; 239-244
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transestrification of biofuel, yes but why?
Autorzy:
Sitnik, L. J.
Powiązania:
https://bibliotekanauki.pl/articles/242003.pdf
Data publikacji:
2008
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
diesel engines
fuels
alternative fuels
biofuel
Opis:
This paper presents a novel way of utilizing alcohols as fuels for a diesel engine. It is proposed to use heavy alcohols as a mix with vegetable oils and conventional diesel fuel. It is presented the another way to use alcohols. Namely, the use of heavy alcohols as a solvent for vegetable oil (named the biomix or BM) and after the obtainment of the thickness, which would be approximate to diesel fuel, mixing the biomix with diesel fuel to obtained biomix diesel (BMD). This solution will be shown for example with butanol as heavy alcohol, rape oil as vegetable oil and conventional diesel fuel. The investigations are carried out with a simple diesel engine on the engine test bed. Main parameters of engine (power output, torque, specifically fuel consumption) and the main exhaust gas component (in this case CO, NOx, PM) will be investigated. There were better results achieved than one expected. Opposed to existing experiences, the maximum of power output and the torque of engine are higher in the whole range of the rotatory speed of the engine crankshaft when the engine biomix diesel (BMD) is reinforced. The addition of the component biomix to fuel influences the specific fuel consumption. Generally with the larger part of the component biomix the specific fuel consumption grows. Because the power of engine also grows up one should expect that in exploitation the specific fuel consumption should not increase. Transestrification process in the proposed solution does not appear. This has large economic meaning. The investment amount (the transestrification plant) is not necessary. The power consumption to get fuel is lower. Vegetable oils are fully used (glycerine is not produced). BMD has stable parameters. The usage of existing infrastructure to this transportation is enough. Very important is that this fuel could be used to reinforce old, existing now and the future diesel engines. The production of butanol is known. It will be interesting to use for the production an electrolysis process, especially in the proposed new plant where the electrolysis process is connected with the process to get the electrical energy from byproducts of electrolysis (i.e. hydrogen and oxygen) in the fuel cell. It seems to be more efficient. The possibility to get butanol from ethanol gives a very good perspective for the use of ethanol from today's overproduction and moreover without the essential change of infrastructure.
Źródło:
Journal of KONES; 2008, 15, 4; 537-544
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New European biofuels for diesel engines
Autorzy:
Sitnik, L. J.
Powiązania:
https://bibliotekanauki.pl/articles/243532.pdf
Data publikacji:
2008
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
combustion engines
alternative fuels
biofuels
butanol
Opis:
The World is strongly dependent on crude oil for its transport needs. In order to diminish this dependence, we need to introduce clean, CO2-efficient, secure and affordable transportation fuels. The development of innovative biofuel technologies will help to cover significantly (up to 25% in Europe) road transport fuel needs. Biofuels production of 33 billion litres in 2004 is small compared to 1200 billion litres of gasoline produced annually worldwide. The current production of liquid biofuels in the EU 25 is about 2 Mtoe, which is less than 1% of the market. Recent assessments have concluded that the 2010 targets, 18 Mtoe used in the transport sector, are unlikely to be achieved. There can be three basic possibilities of accomplishing this target: i) use of alcohols (first of all ethanol) and their mixing with petrol; ii) use of fatty acids esters (methyl or ethyl) of vegetable oils and their mixing with diesel fuel, iii) use of synthetic hydrocarbons of the synthetic gas coming from biomass resources and eventually their mixing with other ,,classical" hydrocarbons. This paper presents a novel way of utilizing alcohols as fuels for a diesel engine. It is proposed to use heavy alcohols as a mix with conventional diesel fuel. The possibility to use a mix of butanol (as heavy alcohol) with conventional diesel fuel is demonstrated. Butanol has some key advantages over ethanol and light hydrocarbons (petrol), including higher energy content and better transport characteristics. Moreover, butanol is hydrophobic, so a new logistic infrastructure is not necessary. This paper demonstrates that a diesel-butanol fuel mixture is supplied to a diesel engine without any problems. A consumption of proposed biofuel mixture from +35% to -35% of typical diesel fuel depends on many factors not only on fuel energy density. A near-term effort of BP Biofuels and DuPont to develop and commercialize biobutanol is well-known. Here, it is proposed a new technological process combining electricity generation in fuel cells with electrolysis and a production of butanol from ethanol, which gives an opportunity to reduce today,'s over production of ethanol without a necessary change of existing infrastructure.
Źródło:
Journal of KONES; 2008, 15, 3; 487-491
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Future of electric cars in the EU
Autorzy:
Gis, W
Waśkiewicz, J
Powiązania:
https://bibliotekanauki.pl/articles/244969.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
cars
transport
carbon dioxide emissions
alternative drives
Opis:
The article presents scenarios for the EU and national development of passenger electric and hybrid cars. The forecast for 2030 of the shares of such vehicles in the total number of new passenger cars sold in various categories in the EU, has been presented. The expected carbon dioxide emissions for this time horizon, in so-called, life cycle of cars in the EU and in Poland, in relation to conventionally powered passenger cars and electric and hybrid cars, have also been presented The results of surveys conducted by the Motor Transport Institute on the interest of residents of the Polish agglomerations in the acquisition and operation of the electric cars in the coming years have been d. Questions and answers referred to the socio - demographic structure of the respondents and their households, the number of classes of the cars owned, monthly household income and self-evaluation of the quality of the income management. Also, the questions were asked about the ownership and extent of use (frequency of use of a car owned and the average annual mileage) and the criteria for the current and future choices of passenger cars (e.g. price class, purpose). The questions also concerned the technical and economic knowledge of electric cars (such as the impact on the natural environment, operating costs), as well as willingness to incur possible costs associated with the purchase of an electric car. The focus was also placed on getting to know the vulnerability of the consumers to the influence of the actions of the propaganda, administrative and economic nature, which may affect the consumers’ decisions concerning the purchase of electric cars and learning about the reasons for any reluctance to use such vehicles.
Źródło:
Journal of KONES; 2014, 21, 2; 83-88
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cars in the first years of 21st century
Autorzy:
Szczepaniak, C.
Powiązania:
https://bibliotekanauki.pl/articles/242723.pdf
Data publikacji:
2007
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
vehicles
ultra light automobiles
alternative cars
Opis:
The fact that we live in a new era of informational civilization compels us to fulfil new requirements also in the area of transportation and motorization. The paper deals with the problems of the cars of the first years of our century. Basic assumptions for the concepts of such cars are as follows: alternative forms of personal transportation are inevitable, cars must be environment friendly and friendly for human beings, and general design concept of the cars will not be changed. Some examples of such vehicles are presented using the concept of ultra light automobiles described by Q .R. Riley. The paper also describes "zero emission" cars and there are mentioned ideas of the vehicles with engines which are yet known in the sphere of science-fiction only. Design requirements for construction of future cars, ideas on construction of cars of the future as well as requirements which should realize motor vehicles friendly to humans and the environment, example solutions of various technical nature which can contribute to fulfilment of requirements imposed on SPNS and the proposal according to the author (R. Q. Riley) of Alternative cars in the 21st Century [3] are represented in the paper.
Źródło:
Journal of KONES; 2007, 14, 4; 487-492
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
River tramway - an alternative solution for sustainable passenger urban transport system
Żegluga śródlądowa w komunikacji miejskiej jako czynnik zrównoważonego rozwoju transportu
Autorzy:
Jastrzębski, T.
Sułek, J.
Tołkacz, L.
Żurawski, T.
Powiązania:
https://bibliotekanauki.pl/articles/906981.pdf
Data publikacji:
2005
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
Inland Shipping
transport
zrównoważony
alternatywny
projekt
sustainable
alternative
design
Opis:
The development of sustainable transportation means and systems is one of the European policies. Different criteria are taken into consideration to find an optimum solution when urban transport is investigated - in both traditional and innovative technical solutions. In the paper an alternative proposal to inland systems is proposed and the concept of design solutions is presented as well. The proposal is addressed partly to the local waterways in Szczecin and western Pomerania region and is based on a sustainable passenger traffic analysis. It may also be interesting for application in the conditions of other cities and regions - Wroclaw, Dresden and Praha.
Rozwój środków i systemów transportu zrównoważonego stał się jedną z naczelnych dyrektyw Unii Europejskiej. Badania nad środkami transportu miejskiego, w dwóch aspektach - tradycyjnym i innowacyjnym, wymagają wzięcia pod uwagę wielu różnych kryteriów i poszukiwania optymalnego rozwiązania. W publikacji przedstawiono propozycję alternatywnego wykorzystania dróg śródlądowych w celach transportu miejskiego. Zaproponowano wstępną koncepcję rozwiązania projektowego. Rozwiązanie przystosowane jest do warunków panujących na lokalnych drogach wodnych Szczecina i rejonu Pomorza Zachodniego i spełnia warunki uzyskane z analizy zrównoważonego transportu pasażerskiego. Rozwiązanie to może stanowoć ciekawą alternatywę również dla innych miast - Wrocławia, Drezna i Pragi.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2005, 9 (81); 75-86
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Knock combustion in dual fuel diesel engine
Autorzy:
Żółtowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/242833.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road transport
IC engines
alternative fuels
combustion process in engine
Opis:
This article presents the problem of the knock combustion in a dual fuel compression engine, in which additional fuel besides diesel oil was compressed natural gas (CNG). CNG was injected into the engine intake system and mixed with air supplying the engine. In this paper described the reasons of knock combustion, which occur with more intensity with the increase of methane content in engine fuel. The phenomenon of knock combustion in the dual fuel engine is difficult to eliminate, often impossible to avoid, and it forms a barrier limiting increase of methane share in the fuel. Also, this article contains the results of engine indicating and discussion on changes in the indicating diagrams caused by knock combustion. Carried out tests included engine indicating and numerical calculation of indicator diagrams with using spectral analysis and filtering cylinder pressure signals with high-pass filters. As a result of this calculation, several parameters describing intensity of knock combustion were determined. They allow to tell taking into account only cylinder pressure analysis if there is knock combustion inside engine combustion chamber or not. Knocking is an undesirable type of combustion in the engine, leading to excessive thermal and mechanical loading of the engine parts, causing premature wear of them. For this reason, this type of combustion should be eliminated from the engine operation and researchers of combustion processes must be provided with tools to detect and determine this kind of combustion.
Źródło:
Journal of KONES; 2014, 21, 4; 547-553
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Issues related to the development of electromobility from the point of view of Polish utilities
Problemy rozwoju elektromobilności z perspektywy polskich grup energetycznych
Autorzy:
Drożdż, Wojciech
Szczerba, Paulina
Kruszyński, Dawid
Powiązania:
https://bibliotekanauki.pl/articles/949530.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
alternative fuel
energy sector
electromobility
clean transport
paliwo alternatywne
sektor energetyczny
elektromobilność
czysty transport
Opis:
At present, electromobility is a very dynamically developing segment and at the same time has many unknowns that enterprises that want to develop this area in their structures have to face. This article aims is to show the difficulties of electromobility development from the perspective of Polish energy groups which are closely related to this area, especially considering the obligations imposed on energy companies by the legislator. The electrification of transport has become a reality and in order to use its potential to develop new services or implement innovations and new technologies, it is necessary to identify development barriers and prepare a response plan. The authors of the article decided to show the formal and legal implications for the development of electromobility in Poland in first order, and then examine the development strategies of Polish energy groups in terms of electromobility and indicate explored areas related to it. The next section focuses on identifying the main barriers to the implementation of business models, classifying them according to the following factors: economic, operational, technical, social and legal. This presentation of the problem allows for an in-depth recognition of the issue and realizing that in order to achieve the goals set by the Legislator, close cooperation of all stakeholders is necessary both at the national and local level, while engaging energy groups, financial companies, electric vehicle manufacturers, and above all local government units in these activities.
Elektromobilność w chwili obecnej jest segmentem bardzo dynamicznie rozwijającym się i jednocześnie posiadającym wiele niewiadomych, z którymi muszą się zmierzyć przedsiębiorstwa chcące rozwijać ten obszar w swoich strukturach. Niniejszy artykuł ma na celu przybliżenie pojawiających się problemów podczas rozwijania elektromobilności z perspektywy polskich grup energetycznych, które z tym obszarem są ściśle powiązane, chociażby przez nałożone obowiązki ustawowe. Elektryfikacja transportu stała się już faktem i aby wykorzystać jej potencjał na rozwój nowych usług czy wdrożenie innowacji i nowych technologii, należy zidentyfikować bariery rozwojowe i przygotować na nie gotowy plan odpowiedzi. Autorzy artykułu postanowili w pierwszej kolejności wykazać implikacje formalno-prawne dla rozwoju segmentu elektromobilności w kraju, a następnie zbadać strategie rozwoju polskich grup energetycznych pod kątem elektromobilności oraz wskazać eksplorowane obszary z tym związane. Kolejny podrozdział koncentruje się na wskazaniu głównych barier implementacji modeli biznesowych, klasyfikując je według następujących czynników: ekonomicznych, operacyjnych, technicznych, społecznych i prawnych. Takie przedstawienie problematyki pozwala na wnikliwe rozpoznanie zagadnienia i uświadomienie, że w celu osiągnięcia założonych przez ustawodawcę celów, niezbędna jest ścisła współpraca wszystkich interesariuszy, zarówno na szczeblu krajowym, jak i lokalnym, jednocześnie angażując w te działania grupy energetyczne, przedsiębiorstwa finansowe, producentów pojazdów elektrycznych, a przede wszystkim jednostki samorządów terytorialnych.
Źródło:
Polityka Energetyczna; 2020, 23, 1; 49-64
1429-6675
Pojawia się w:
Polityka Energetyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tangible benefits of using liquefied natural gas fuel in the urban transport of Szczecin
Autorzy:
Chłopińska, E.
Kowbel, R.
Powiązania:
https://bibliotekanauki.pl/articles/135148.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
LNG fuel
exhaust emission
urban transport
Szczecin
alternative solution
costs
Opis:
Being the cleanest mine fuel due to the release of low exhaust emissions into the atmosphere, natural gas has been utilised by many fields of transport. A rapidly growing world market of liquefied natural gas (LNG) fuel has enabled to implement this fuel in urban transport. This article concentrates on presenting an alternative solution for the use of LNG fuel in urban buses to reduce exhaust emission using the example of Szczecin. On the basis of a significantly growing segment of the engines for the gas driven market, the article also shows the possible costs arising from the use of LNG fuel in urban buses of Szczecin. The impact to the natural environmental from the use of diesel fuel from vehicles was analysed. Based on the exhaust emission analysis this article shows the difference between using a fuel which emits less noise and is a cleaner energy source with high energy efficiency and the fuel used by carriers.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 47 (119); 123-128
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reduction emission level of harmful components exhaust gases by means of control of parameters influencing on spraying process of biofuel components for aircraft engines
Autorzy:
Jankowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/245547.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
aircraft engines
alternative fuels
fuel atomization
exhaust gas emissions
Opis:
The aim of the research is to test the fuel additives which decrease dimensions of atomised fuel drops, by applying changes to the specific parameters which impact the atomisation process. Those parameters include density, surface tension, viscosity and the viscosity index. Dimensions of drops of biofuels are much bigger compared to hydrocarbon fuels. By modifying the physical and chemical parameters of biofuels, dimensions of drops in an atomised fuel stream should become smaller. Those dimensions play a major role for the level of emissions of hydrocarbon and carbon monoxide, as well as mainly nitrogen oxides and particulates. The research on emissions of toxic components of fuel is relatively advanced today in the field of piston combustion engines, especially for use in car vehicles. However, the dynamic development of the air transport brings more pressure on the issue of toxic emissions in the case of aircraft engines. The level of toxic emissions from aircraft engines may be from ten up to even several thousand times greater than the level of emissions from piston engines. The issue of how biofuel additives can affect the process of fuel atomisation and thus enable the control over the atomisation to obtain the smallest possible drops leading to reduced nitrogen oxides emissions is a new and original issue. The reduced nitrogen oxides emissions in the case of biofuels is of utmost significance because, according to latest knowledge, those levels are increasing.
Źródło:
Journal of KONES; 2011, 18, 3; 129-134
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Future mobility without internal combustion engines and fuels?
Czy w przyszłości transport będzie mógł funkcjonować bez silników spalinowych i paliw?
Autorzy:
Lenz, H. P.
Powiązania:
https://bibliotekanauki.pl/articles/133507.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
transport
combustion engines
engine fuels
alternative powertrain
alternative fuels
silnik spalinowy
paliwa silnikowe
napęd alternatywny
paliwa alternatywne
Opis:
For many decades to come, and in the foreseeable future, internal combustion engines – in many cases with electric motors – will be with us, just like the liquid fuels they require. The importance of crude oil will decline, as these fuels will be increasingly produced on a synthetic basis without CO2 emissions. The answers to the question "Future Mobility without internal Combustion Engines and Fuels?" are "no" in both cases. Purely battery-electric mobility will be applied in the future only in specific areas. fuel-cell vehicles will hardly be used because of the extreme infrastructure investment costs. In contrast, liquid fuels will ensure the future of mobility. in this scenario, energy such as solar or wind energy will be generated without CO2 emissions.
Silniki spalinowe funkcjonują jako źródła napędu pojazdów już ponad 100 lat i w dającej się przewidzieć przyszłości wciąż będą powszechnie stosowane, podobnie jak paliwa płynne potrzebne do ich zasilania. Znaczenie ropy naftowej będzie jednak powoli malało w miarę wzrostu skali produkcji paliw syntetycznych, w procesach zapewniających małą emisję CO2. Odpowiedź na pytanie: czy transport w przyszłości będzie odbywać się bez silników spalinowych i paliw brzmi: nie. Napęd elektryczny stosowany będzie tylko na wybranych obszarach. Pojazdy wykorzystujące ogniwa paliwowe nigdy nie osiągną większej popularności ze względu na wysokie koszty budowy niezbędnej infrastruktury. Tylko paliwa płynne będą w stanie zaspokoić przyszłościowe potrzeby transportu. Do ich wytworzenia wykorzystywana będzie jednak energia ze źródeł o zerowej emisji CO2, jak na przykład baterie słoneczne, czy farmy wiatrowe.
Źródło:
Combustion Engines; 2013, 52, 4; 3-15
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
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