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research-article

Renal echotextural changes in Nigerian workers chronically exposed to petroleum-based liquid fuels

Introduction Crude petroleum may be distilled into such fractions as diesel, gasoline, kerosene, heavy gas oils, lubricating oils, as well as residual and heavy fuels. Diesel, gasoline and kerosene are among the frequently used fractionated products of crude petroleum and are called petroleum-based liquid fuel(1). These products are basically composed of aliphatic, aromatic and a variety of other branched saturated and unsaturated hydrocarbons at variable proportions(2). Like other xenobiotics

Angel-Mary C. Anakwue, Felicitas U. Idigo, Raphael C. Anakwue

Journal of Ultrasonography , ISSUE 80, 18–23

Article

THE INFLUENCE OF SELECTED GASEOUS FUELS ON THE COMBUSTION PROCESS IN THE SI ENGINE

Summary. This paper presents the results of SI engine tests, carried out for different gaseous fuels. The analysis carried out made it possible to define the correlation between fuel composition and engine operating parameters. The tests covered various gaseous mixtures: methane with hydrogen from 5% to 50% by volume and LPG with DME from 5% to 26% by mass. The first group, considered as low-carbon-content fuels can be characterized by low CO2 emissions. Flammability of hydrogen added in those

Marek FLEKIEWICZ, Grzegorz KUBICA

Transport Problems , ISSUE 3, 135–146

research-article

SELECTED ASPECTS OF THE USE OF GASEOUS FUELS BLENDS TO IMPROVE EFFICIENCY AND EMISSION OF SI ENGINE

1. INTRODUCTION Greenhouse gas emissions from transport constitute around 22% of the total CO2 emissions of globally processed energy. However, this emission plays an important role primarily due to the rapid increase in traffic and almost total dependence of transport on fossil fuels. In addition, transport is the fastest growing sector of the economy among all emission sources. According to the latest ITF data, CO2 emissions from passenger transport in the world will increase from 30% to 110

Grzegorz KUBICA, Marek FLEKIEWICZ, Paweł MARZEC

Transport Problems , ISSUE 1, 95–103

Article

TESTS OF PHYSICOCHEMICAL PROPERTIES OF FUEL AND BALLAST FRACTIONS FROM WASTE PROCESSING INSTALLATIONS

municipal waste fraction constitutes an important element of modern waste management system. Moreover, it becomes an alternative to exhaustible resources of fossil fuels and a valuable source of energy to be used in industry, e.g. in cement industry. The article presents characteristics of a selected production plant of alternative fuel, which operates in the area of Silesian Voivodship. The purpose of the test was to analyse the quality of the readymade alternative fuel and ballast fraction formed in

Monika CZOP, Małgorzata KAJDA-SZCZEŚNIAK

Architecture, Civil Engineering, Environment , ISSUE 3, 113–121

Research Article

Main conditions and effectiveness of gas fuel use for powering of dual fuel IC self-ignition engine

Internal combustion engines are fuelled mostly with liquid fuels (gasoline, diesel). Nowadays the gaseous fuels are applied as driving fuel of combustion engines. In case of spark ignition engines the liquid fuel (petrol) can be totally replaced by the gas fuels. This possibility in case of compression engines is essentially restricted through the higher self-ignition temperatures of the combustible gases in comparison to classical die-sel oil. Solution if this problem can be achieved by using

Stefan POSTRZEDNIK, Grzegorz PRZYBYŁA, Zbigniew ŻMUDKA

Transport Problems , ISSUE 3, 99–111

Article

DYNAMIC REGULATION OF THE PERCENTAGE COMPOSITION OF THE MIX DIESEL AND BIODIESEL FUEL

The use of internal combustion engines increase environmental pollution and dependence on fossil fuels. The biodiesel fuel, which is renewable, more environment friendly, and cheaper, is a good alternative for diesel engines. The use of biodiesel fuel leads to a drop in diesel power and an increase in fuel consumption. To prevent these shortcomings, it is proposed to use dynamic regulation of the percentage composition of a mixture of diesel and biodiesel fuel. The modernization of diesel

Orest Horbay, Andrii Poliakov, Mykola Hrechaniuk, Inna Vishtak

Transport Problems , ISSUE 2, 59–67

Research Article

EXPERIMENTAL RESEARCH ON DIESEL ENGINE WORKING ON A MIXTURE OF DIESEL FUEL AND FUSEL OILS

This article considers the possibility of spirit fusel oil being used as an addition to agile fuels. Results of experimental research on diesel engines working on mixtures of diesel fuel and fusel oils are given. The fuel economy and ecological indexes of engines working on mixtures of diesel fuel and fusel oils were improved.

Sviatoslav KRYSHTOPA, Liudmyla KRYSHTOPA, Vasyl MELNYK, Bohdan DOLISHNII, Igor PRUNKO, Yaroslav DEMIANCHUK

Transport Problems , ISSUE 2, 53–63

Article

THE USE OF LOW-CALORIFIC VALUE GASES IN ENVIRONMENTAL PROTECTION ENGINEERING

The use of low-calorific value gases is a way to gaseous fuels supply diversification. LCV gases present an application potential in various technologies e.g. reburning process. The experimental investigation of the reburning process in small scale coal-fired boiler using sewage sludge-derived syngas was carried out. The influence of the LCV gas stream on the nitrogen oxides emission reduction was analyzed. The emission reduction reached almost 30% with 11% gas share in thermal input.  

Wojciech Uchman, Sebastian Werle

Architecture, Civil Engineering, Environment , ISSUE 1, 127–132

Research paper

DIESEL PARTICULATE ANALYSIS USING SEM-EDX AND LASER-INDUCED BREAKDOWN SPECTROSCOPY

and rapidly exhausted. The particulates are less than a few micrometers in diameter. Real-time chemical analysis of the very small sized particles emitted from diesel fuels is facilitated with LIBS technique.

S. Ikezawa, M. Wakamatsu, T. Ueda

International Journal on Smart Sensing and Intelligent Systems , ISSUE 2, 174–188

Article

MAIN TRENDS OF BIOFUELS PRODUCTION IN UKRAINE

The analysis of biological resources for biofuels production in Ukraine has been carried out, and it has been shown that usage of alternative energy sources has great potential for substantially improving energy supply of the state and solving environmental problems. The directions of development and new technologies of obtaining motor fuels from biomass are systematized. It has been established that usage of different types of biofuels and their mixtures for feeding internal combustion engines

Myroslav PANCHUK, Sviatoslav KRYSHTOPA, Liubomyr SHLAPAK, Liudmyla KRYSHTOPA, Andrii PANCHUK, Volodymyr YAROVYI, Aleksander SŁADKOWSKI

Transport Problems , ISSUE 4, 15–26

Research Article

ENVIRONMENTAL ASSESSMENT OF ROAD TRANSPORT IN A PASSENGER CAR USING THE LIFE CYCLE APPROACH

Environmental issues are an increasingly important aspect of management in the transport sector; new methods have been developed for assessment of the environment in the transport sector using the life cycle approach. The paper presents the application of Well to Wheel (WTW) and Life Cycle Assessment (LCA) in the transport sector. The WTW method focuses on energy analysis and greenhouse gas emissions during the life cycle of fuels. WTW is used to support decision-making on the environmental

Piotr FOLĘGA, Dorota BURCHART-KOROL

Transport Problems , ISSUE 2, 147–153

Research Article

ACTION AS A CRITERION OF THE CAR OPERATING EFFECTIVENES

Summary. Currently used criteria for determining car operating efficiency in road traffic are, among others, emission of harmful substances, consumption of engine driving fuels, technical service and reliability of operation, safety of use. The operational characteristics of the car in terms of engine driving fuel consumption data is usually recognised as so-called road specific fuel consumption. An important deficiency of this approach is the failure to take into

Stefan POSTRZEDNIK

Transport Problems , ISSUE 2, 91–101

Article

ADVANCED COMPUTATIONAL METHODS IN COMPONENT-ORIENTED MODELLING OF MUNICIPAL SOLID WASTE INCINERATION PROCESSES

a series of studies and detailed analysis of constituents of elementary processes (degassing, gasification, combustion). The apparent simplicity of process implementation often determines knowledge and practical experience required in their application. The relationships known and used in the design usually concern a homogeneous substance (conventional fuels) and do not correspond to the conditions and needs of processing of complex substances of a different chemical composition and physic

Krzysztof GASKA, Agnieszka GENEROWICZ

Architecture, Civil Engineering, Environment , ISSUE 1, 117–130

Review

ENERGY EFFICIENCY ECONOMICS OF CONVERSION OF BIOGAS FROM THE FERMENTATION OF SEWAGE SLUDGE TO BIOMETHANE AS A FUEL FOR AUTOMOTIVE VEHICLES

out by the authors was to replace the conventional fuel with renewable fuel produced from biogas in the context of environmental protection by reducing exhaust emissions resulting from the combustion of fossil fuels (ethyl gasoline, diesel) in the internal combustion engines of these vehicles. Pollutants emitted into the air by exhaust gases from motor vehicles and vapors of such fuels such as gasoline or diesel have a negative impact on air quality, the environment and human health. It is

Józef CIUŁA, Krzysztof GASKA, Łukasz ILJUCZONEK, Agnieszka GENEROWICZ, Viktor KOVAL

Architecture, Civil Engineering, Environment , ISSUE 2, 131–140

Article

ESTIMATION OF ENERGY INTENSITY IN INDIAN IRON AND STEEL SECTOR: A PANEL DATA ANALYSIS

India is the world’s third largest consumer of primary energy, which includes fossil fuels like coal, oil, etc. The total primary energy consumption in India in 2015 was 107 Mtoe. India’s total final energy consumption was estimated at 527 Mtoe of which the industrial sectors consumed about 30% (185 Mtoe) in 2013. The Iron and Steel sector is one of the most energy-intensive industries, consuming about 25% of the total industrial energy consumption. The energy consumption in Indian

Anukriti Sharma, Hiranmoy Roy, Narendra Nath Dalei

Statistics in Transition New Series , ISSUE 2, 107–121

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