Search results for: FUEL SAVINGS

• Economical wood sawing with circular saw blades

  Publication

  • R. Wasielewski
  • K. Orłowski
  • S. Szyszkowski

  - Year 2011

  Material- and energy-saving belong to the basic requirements which are imposed on the contemporary manufacturing processes. Since realization of those processes gives measurable profits not only economical but also ecological. In case of wood sawing with circular saw blades material- and energy-savings are dependent on total overall set of teeth (theoretical kerf) and teeth position accuracy in relation to the workpiece. Hence,...

• Trees having many minimal dominating sets

  Publication

  • M. Krzywkowski

  - INFORMATION PROCESSING LETTERS - Year 2013

  We provide an algorithm for listing all minimal dominating sets of a tree of order n in time O(1.4656^n). This leads to that every tree has at most 1.4656^n minimal dominating sets. We also give an infinite family of trees of odd and even order for which the number of minimal dominating sets exceeds 1.4167^n, thus exceeding 2^{n/2}. This establishes a lower bound on the running time of an algorithm for listing all minimal dominating...

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• The experimental results of diesel fuel spray with marine engine injector

  Open Research Data

  open access

  • J. Grochowalska
  • J. Kowalski
  • Ł. J. Kapusta
  • P. Jaworski

  The data set presents the measurement of the diesel fuel spray from with marine engine injector. The main target presents results is a study of the time course of macro parameters (spray tip penetration, spray cone angle) of fuel spray in the cylinder of marine diesel engine. The impact of ambient conditions and the geometrical parameters of the injector...

• Microscale microbial fuel cell (MFC) batch experiment results

  Open Research Data

  open access

  • J. Strycharz
  • N. Nawrot
  • K. Matej-Łukowicz
  • E. Wojciechowska

  This dataset provides the results of six different scenarios meant to assess the efficiency COD, TN, TP removal and voltage generation in microbial fuel cells (MFC).

• The role of additives in improving the flammability and calorific value of leather shavings and the binding of chromium compounds in ash

  Publication

  • T. Turzyński
  • K. Januszewicz
  • P. Kazimierski
  • D. Kardas
  • P. Hercel
  • J. Szymborski
  • J. Niewiadomski

  - WASTE MANAGEMENT - Year 2023

  Leather processing companies are struggling with the problem of increasing costs of post-production waste disposal. Therefore, the issue of thermal waste disposal at the plant and the use of generated heat in the production process is becoming more and more popular. Leather waste on its own does not allow for autothermal combustion despite the sufficient higher heating value (HHV). Therefore the Authors proposed to improve the...

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• Jurnal Sains Kesihatan Malaysia

  Journals

  ISSN: 1675-8161

• Journal of Fuel Cell Science and Technology

  Journals

  ISSN: 1550-624X

• Excess Emissions and Fuel Consumption of Modern Spark Ignition Passenger Cars at Low Ambient Temperatures

  Publication

  • P. Bielaczyc
  • A. Szczotka
  • J. Woodburn

  - Year 2012

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• Effects of Fuel Properties on Exhaust Emissions from the Latest Light-Duty DI Diesel Engine

  Publication

  • P. Bielaczyc
  • M. Kozak
  • J. Merkisz

  - Year 2003

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• Rock salt ordered-type double perovskite anode materials for solid oxide fuel cells

  Publication

  • K. Zheng
  • K. Świerczek
  • W. Zając
  • A. Klimkowicz

  - Solid State Ionics - Year 2014

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• Steady-state characteristics and dynamic response of the PEM fuel cell to unit step change of load

  Publication

  • J. Cieśliński
  • T. Kaczmarczyk

  - Year 2010

  Podano opis układu zasilania opartego na dwóch ogniwach paliwowych typu PEM o łącznej mocy 2.4 kW. Zaprezentowano wybrane charakterystyki statyczne i dynamiczne układu.

• Influence of the engine cooling down period during short car stops on the average fuel consumption

  Publication

  • Z. Kneba

  - Year 2009

  W publikacji przedstawiono wpływ schłodzenia silnika podczas krótkich postojów pomiędzy jazdami na średnie zużycie paliwa. Przeprowadzono własne pomiary w czasie jazd miejskich w Gdańsku. Użyto samochodu osobowego z silnikiem o objętości skokowej 2 dm^3 z zapłonem siskrowym. Mierzono zużycie paliwa na trasach o długości 3-10 km. Krótko opisano sposoby wstępnego podgrzania silnika przed rozruchem.

• Inhalation risk to PAHs and BTEX during barbecuing: The role of fuel/food type and route of exposure

  Publication

  • A. Badyda
  • W. Rogula-Kozłowska
  • G. Majewski
  • K. Bralewska
  • K. Widziewicz-Rzońca
  • B. Piekarska
  • M. Rogulski
  • J. Bihałowicz

  - JOURNAL OF HAZARDOUS MATERIALS - Year 2022

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• Experimental study of the fuel jet combustion in high temperature and low oxygen content exhaust gases

  Publication

  • S. Lille
  • W. Błasiak
  • M. Jewartowski

  - Year 2005

  Przeprowadzono badania eksperymentalne spalania pojedynczego strumienia paliwa gazowego. Paliwo podawano współosiowo do generowanych przez konwencjonalny palnik gazowy spalin o wysokiej temperaturze i niskiej zawartości tlenu. Badano wpływ zawartości tlenu w utleniaczu na widzialność płomienia i skład produktów spalania.

• THE THEORETICAL STUDY ON INFLUENCE OF FUEL INJECTION PRESSURE ON COMBUSTION PARAMETERS OF THE MARINE 4-STROKE ENGINE

  Publication

  • J. Kowalski

  - Journal of KONES - Year 2016

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• Synthesis and Testing of BCZY/LNZ Mixed Proton–electron Conducting Composites for Fuel Cell Applications

  Publication

  • K. Zagórski
  • T. Miruszewski
  • D. Grudzień
  • P. Jasiński
  • M. Gazda

  - Procedia Engineering - Year 2014

  A composite of BaCe0.6Zr0.2Y0.2O3–δ and Li2O:NiO:ZnO was investigated for fuel cell applications. The composite was successfully synthesized and its phase stability was confirmed at temperatures up to 900 °C. The influence of sintering and pressing aids on density was also investigated. Electrical properties were measured. DC electrical conductivity was about 8•10-4 S/m at 845 K. Open circuit voltage measurements in wet hydrogen...

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• On possible lowering fuel oil consumption by differentiating loads on ship diesel engines running in parrallel.

  Publication

  • J. Herdzik
  • A. Balcerski

  - Polish Maritime Research - Year 2003

  Podano możliwości zmniejszenia zużycia paliwa przez silniki okrętowe pracujące równolegle dzieki różnicowaniu ich obciążeń eksploatacyjnych. Zaprezentowano podstawy teoretyczne oraz sposób postępowania przy pomiarach zużycia paliwa w czasie rzeczywistym.

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• Fuel price, income and road safety as determinants of the level of the population’s economic well-being in Poland

  Publication

  • O. Melnychenko
  • T. Osadcha
  • T. Kalna-Dubinyuk

  - AIP Conference Proceedings - Year 2024

  The opportunity to travel is one of the most favorite human activities, given that on a trip a person gets new knowledge, impressions and positive emotions. Recreational trips occupy a prominent place in the concept of the economics of happiness, and the study of factors that influence decision-making regarding travel is important for forecasting the number of tourists, infrastructure development, income and expenses of businesses...

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• High step-up continuous input current LCCT-Z-source inverters for fuel cells

  Publication

  • M. Adamowicz
  • R. Strzelecki
  • F. Z. Peng
  • J. Guziński
  • H. Abu-Rub

  - Year 2011

  Falowniki typu Z (ZSI) przeznaczone są do układów wymagających szerokiej zmiany wzmocnienia napięciowego, np. w energetyce odnawialnej. Ostatnio zaproponowano w literaturze zmienione struktury - falowniki typu Trans-Z (TZSI) oraz typu T (TSI) - w których dzięki zastosowaniu dławików sprzężonych uzyskano lepsze wzmocnienie niż w ZSI. W tym artykule przedstawiono ideę rozszerzonej struktury TZSI. Zaproponowano dwie nowe struktury...

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• Experimental study and numerical simulation of low calorific fuel combustion at different oxygen content in the oxydizer

  Publication

  • J. Stąsiek
  • J. Barański
  • M. Jewartowski

  - Year 2011

  W pracy przedstawiono wyniki badań eksperymentalnych oraz obliczeń numerycznych procesu spalania paliwa gazowego niskokalorycznego w utleniaczu o podwyższonej temperaturze i zmiennej zawartości tlenu. Badanym paliwem był gaz o składzie zbliżonym do paliwa pochodzącego z gazyfikacji biomasy. Spalanie przeprowadzano dla zmiennej wartości temperatury utleniacza oraz zawartości tlenu. Obliczenia numeryczne wykonano z wykorzystaniem...

• Fully enzymatic mediatorless fuel cell with efficient naphthylated carbon nanotube-laccase composite cathodes

  Publication

  • M. Karaśkiewicz
  • E. Nazaruk
  • K. Sadowska
  • J. Biernat
  • J. Rogalski
  • R. Bilewicz

  - ELECTROCHEMISTRY COMMUNICATIONS - Year 2012

  An efficient, mediator-free enzymatic glucose/O2 biofuel cell with an oxygen intensive anode based on glucose dehydrogenase is presented. In the device,the power of the biofuel cell and electrode potentials of each of the enzymatic electrodes were monitored in parallel under the biofuel cell working conditions. The carbon nanotube composite biocathode demonstrates an almost constant electrode potential vs. saturated calomel electrode...

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• Evaluation of porous ferritic Fe22Cr stainless steel for solid oxide fuel cells at high temperature

  Publication

  • M. Karpińska
  • K. Dunst
  • J. Karczewski
  • S. Molin
  • P. Jasiński

  - Year 2012

  W pracy przedstawiono wyniki badań korozji stali Fe22Cr w wysokich temperaturach.

• LaNi1-xCoxO3-δ(x=0.4 to 0.7) cathodes for solid oxide fuel cells by infiltration

  Publication

  • A. Chrzan
  • S. Ovtar
  • M. Chen

  - Year 2015

  Performance of LaNi 1-x Co x O 3−δ (LNC) (x=0.4 to 0.7) as a cathode in solid oxide fuel cell (SOFC) is evaluated. Symmetrical cathode/electrolyte/cathode cells for electrochemical testing are prepared by infiltration of yttria stabilized zirconia (YSZ) backbone with LNC solutions. It is showed that the cathode infiltrated with LaNi 0.5 Co 0.5 O 3−δ (LNC155) has the lowest polarization resistance and activation energy, 197 mΩ cm...

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• High Temperature Air/Steam Conversion of Biomass and Wastes Into Fuel Gas for Heat and Electricity Production

  Publication

  • J. Stąsiek
  • W. Błasiak
  • W. Yang
  • M. Jewartowski

  - Year 2015

  Paper present principle of high temperature air/staem gasification as well as some results of research using this technology for conversion of biomass and wastes into fuel gas.

• Fabrication, Microstructure and High Temperature Corrosion Resistance of Porous Alloys for Solid Oxide Fuel Cells

  Publication

  • S. Molin
  • K. Dunst
  • M. Biczyńska
  • J. Karczewski
  • P. Jasiński

  - Year 2013

  Porous alloys find use in modern Solid Oxide Fuel Cells as the supporting structures. As they are exposed to high temperatures (> 500°C) an oxide scale forms on their surface due to high temperature corrosion phenomena. Since the ratio between the surface area and volume is much higher than for planar samples, formation of the oxide can lead to a breakaway oxidation after relatively short times. Therefore corrosion properties of...

• Optimization of the Relative Humidity of Reactant Gases in Hydrogen Fuel Cells Using Dynamic Impedance Measurements

  Publication

  • E. Janicka
  • M. Mielniczek
  • Ł. Gaweł
  • K. Darowicki

  - ENERGIES - Year 2021

  Water management is a key factor affecting the efficiency of proton exchange membrane fuel cells (PEMFCs). The currently used monitoring methods of PEMFCs provide limited information about which processes or components that humidity has a significant impact upon. Herein, we propose the use of a novel approach of impedance measurements using a multi-sinusoidal perturbation signal, which enables impedance measurements under dynamic...

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• Analysis of the structure of the atomized fuel spray with marine diesel engine injector in the early stage of injection

  Publication

  • J. Grochowalska
  • P. Jaworski
  • Ł. Kapusta

  - Combustion Engines - Year 2023

  This paper presents the results of the experimental research of the atomized fuel spray with the marine diesel engine injector in the constant volume chamber. The specificity of the phenomena occurring in the marine engine cylinder was the reason to use the optical visualisation method in the studies – the Mie scattering technique. This work presents an analysis of the influence of different geometry of outlet orifice and opening...

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• Study of Direct Methanol Fuel Cell Process Dynamics Using Dynamic Electrochemical Impedance Spectroscopy

  Publication

  • K. Darowicki
  • E. Janicka
  • P. Ślepski

  - International Journal of Electrochemical Science - Year 2012

  A new technique, which was developed to characterize the direct methanol fuel cell under work conditions, has been presented in this paper. The impedance measurements were made using dynamic electrochemical impedance spectroscopy research technique in the galvanostatic mode, using multiple sinusoidal excitation. Obtained results show, that together with an increase of the temperature and working load, the global impedance...

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• Impact of Propeller Emergence on Hull, Propeller, Engine, and Fuel Consumption Performance in Regular Head Waves

  Publication

  • M. H. Ghaemi
  • H. Zeraatgar

  - Polish Maritime Research - Year 2022

  In this study, the impact of propeller emergence on the performance of a ship (speed), propeller (thrust, torque, and RPM), a diesel engine (torque and RPM) and fuel consumption are analysed under severe sea conditions. The goal is to describe the variation in the system variables and fuel consumption rather than analysing the motion of the ship or the phenomenon of propeller ventilation in itself. A mathematical model of the...

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• DESIGN ANALYSIS OF HYBRID GAS TURBINE - FUEL CELL POWER PLANT IN STATIONARY AND MARINE APPLICATIONS

  Publication

  • T. Kwaśniewski
  • M. Piwowarski

  - Polish Maritime Research - Year 2020

  The paper concerns design analysis of a hybrid gas turbine power plant with a fuel cell (stack). The aim of this work was to find the most favorable variant of the medium capacity (approximately 50 MW) hybrid system. In the article, computational analysis of two variants of such a system was carried out. The analysis let to calculate capacity, efficiency of both variants and other parameters like flu gas temperature. The paper...

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• Design and characterization of apatite La9.8Si5.7Mg0.3O26±δ-based micro-tubular solid oxide fuel cells

  Publication

  • S. Wang
  • Y. Hsu
  • P. Hsia
  • W. Hung
  • P. Jasiński

  - JOURNAL OF POWER SOURCES - Year 2020

  In this study, electrolyte-supported (Cell A) and anode-supported (Cell B) micro-tubular solid oxide fuel cells (SOFCs) based on the La9.8Si5.7Mg0.3O26±δ (LSMO) electrolyte is built through an extrusion and dip-coating processes. The formulations and process conditions for these cells are established and optimized. Both cell configurations show no visible delamination or cracking, and reaction zones and inter-diffusion of any species...

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• Performance of the PEM fuel cell module. Part 2. Effect of excess ratio and stack temperature

  Publication

  • J. Cieśliński
  • T. Kaczmarczyk
  • B. Dawidowicz

  - Journal of Power Technologies - Year 2017

  The paper describes a fuel cell based system performance under different thermal conditions. The system could be fed with bottled hydrogen or with very high purity hydrogen obtained from reforming of methanol. The system is based on two fuel cell units (1.2 kW each, produced by Ballard Power Systems Inc. and called Nexa), DC/DC converter, DC/AC inverter, microprocessor control unit, load unit, bottled hydrogen supply system and...

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• Activity of Patents in Fuel Cells and Hydrogen Production in the Context of Passenger Car Fleet in the V4 Countries

  Publication

  • S. Pangsy-Kania
  • A. Romanowska
  • K. Wierzbicka
  • K. Kania

  - Studies in Logic, Grammar and Rhetoric - Year 2022

  The hydrogen market in the world today is capable ovule and em-pirical evidence on activity of patents in fuel cells and hydrogen production islimited so far. Patent applications in zero-emission mobility in the aspect of fuelcells include: DAFC/DMFC&DMFC, PEMFC, SOFC, AFC, PAFC. As for thepatents relating to the hydrogen production, they concern low carbon, electrol-ysis and inorganic. The purpose of the study was to investigate...

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• Current trends in solid-phase microextraction (SPME) fibre catings

  Publication

  • A. Spietelun
  • M. Pilarczyk
  • A. Kloskowski
  • J. Namieśnik

  - CHEMICAL SOCIETY REVIEWS - Year 2010

  This critical review presents information on known and innovative approaches to the manufacture of fibre coatings used in solid-phase microextraction (SPME). The properties, advantages and drawbacks of the different types of commercially available SPME fibre coatings are discussed in detail, as are those of novel types of coatings and the methodologies of their preparation. The applications of fibre coatings in the solid-phase...

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• Methods of Springs Failures Diagnostics in Ore Processing Vibrating Screens

  Publication

  • P. Krot
  • R. Zimroz

  - IOP Conference Series: Earth and Environmental Science - Year 2019

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• Characterization of Mesorhizobium huakuii lipid A containing bothD-galacturonic acid and phosphate residues.

  Publication

  • A. Choma
  • P. Sowiński

  - Year 2004

  Lipid A jest mieszaniną co najmniej 6 związków, różniących się stopniem fosforylacji i strukturą kwasów tłuszczowych przyłączonych do szkieletu polisacharydowego. Szkielet cukrowy zawiera beta(1'->6)połączone dwie cząsteczki 2,3-diamino-2,3-dideoksyglucosy (DAG)oraz aglikon kwas alfa-D-galaktouronowy.

• Synthesis and characterization of biopolyols through biomass liquefaction of wood shavings and their application in the preparation of polyurethane wood composites

  Publication

  • A. Olszewski
  • P. Kosmela
  • Ł. Piszczyk

  - European Journal of Wood and Wood Products (HOLZ ALS ROH-UND WERKSTOFF) - Year 2022

  The sustainability of production systems in wood processing, wood industry, and wooden waste disposal is an important issue for European industry and society. Proper development of products based on renewable wood resources gives an opportunity to provide materials with long-term environmental, social, and economic sustainability. This study aims to establish a new way of forestry and agricultural waste materials utilization by...

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• Sawing accuracy on the twin shaft multi-rip saw

  Publication

  • R. Wasielewski
  • K. Orłowski

  - Year 2007

  W pracy przedstawiono analizę i wyniki badań doświadczalnych dokładności przecinania na dwuwrzecionowej pilarce tarczowej. Zaprezentowano warianty struktury geometryczno-ruchowej dwuwrzecionowej pilarki tarczowej, jak również warunki pracy dolnych górnych pił pilarki.

• Sawing of wood - mechanics of cutting process, tools and machines.

  Publication

  • R. Wasielewski

  - Year 2005

  W pracy przedstawiono wpływ obciażenia piły na dokładnośc przecinania. Zaprezentowano pilarkę ramową z eliptyczną trajektorią ruchu pił i hybrydowym dynamicznie wyrównoważonym napędem ramy piłowej, jak również wizyjny kontroler ostrzy pił tarczowych.

• Entrance and exit conditions of teeth during circular sawing.

  Publication

  • R. Wasielewski

  - Year 2004

  W pracy przedstawiono analizę rozkładu czasowego i przestrzennego geometrycznych warunków wejścia i wyjścia ostrzy piły przy przecinaniu piłami tarczowymi.

• Losses and raw material yield of wood saeing processes

  Publication

  • R. Wasielewski

  - Annals of WULS, Forestry and Wood Technology - Year 2010

  W artykule opisano sposób wyznaczania bezwzględnych i względnych strat materiałowych, jak również wydajności materiałowej w procesie przecinania drewna.

• The preparation method of experimental studies of the wood sawing process

  Publication

  • D. Chuchała
  • K. Orłowski
  • S. Krzosek

  - Annals of WULS, Forestry and Wood Technology - Year 2011

  W artykule przedstawiono sposoby działania, mające na celu przygotowanie badań doświadczalnych procesu przecinania drewna sosnowego na małogabarytowej pilarce ramowej PRW15M. Proces przygotowania badań podzielono na kilka etapów: przygotowanie próbek, pomiar własności fizycznych drewna (wilgotności drewna, gęstość drewna), pomiar własności strukturalnych drewna (średniej szerokości przyrostów rocznych oraz średniego udziału drewna...

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• Zeitschrift fuer Theologie und Kirche

  Journals

  ISSN: 0044-3549 , eISSN: 1868-7377

• SAE International Journal of Fuels and Lubricants

  Journals

  ISSN: 1946-3952 , eISSN: 1946-3960

• Open Fuels and Energy Science Journal

  Journals

  eISSN: 1876-973X

• ZWF Zeitschrift fuer Wirtschaftlichen Fabrikbetrieb

  Journals

  ISSN: 0947-0085

• Regulated Emissions, Unregulated Emissions and Fuel Consumption of Two Vehicles Tested on Various Petrol-Ethanol Blends

  Publication

  • P. Bielaczyc
  • A. Szczotka
  • J. Woodburn

  - Year 2014

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• Direct screening of ground water samples for fuel oxygenates by headspace liquid phase microextraction–gas chromatography

  Publication

  • M. Kaykhaii
  • M. Mirbaloochzahi

  - ENVIRONMENTAL MONITORING AND ASSESSMENT - Year 2008

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• NICKEL-BASED LAYERED PEROVSKITE CATHODE MATERIALS FOR APPLICATION IN INTERMEDIATE-TEMPERATURE SOLID OXIDE FUEL CELLS

  Publication

  • J. HAN
  • K. Zheng
  • K. ŚWIERCZEK

  - Functional Materials Letters - Year 2011

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• Tailoring the Stability of Ti-Doped Sr2Fe1.4TixMo0.6−xO6−δ Electrode Materials for Solid Oxide Fuel Cells

  Publication

  • K. Zheng
  • M. Albrycht
  • M. Chen
  • K. Qi
  • P. Czaja

  - Materials - Year 2022

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