Wszystkie pola: exhaust gases - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Exhaust gases measurement preparation
Autorzy:: Toporcer, E.
Powiązania:: https://bibliotekanauki.pl/articles/242035.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: measurement preparation
sensors
measuring card
measuring scheme
data acquisition
Opis:: The paper deals with the measurement preparation for the exhaust gases measurement. The measurement is carried out within the project of basic research. The aim of the project is the research of the influence of an unconventional charging intercooling on the selected ecological and economical parameters of a turbocharged compression ignition internal combustion engine in the specific operational conditions. The paper gives the information about the types, numbers, specification and position of the sensors used. The measuring scheme with the connection of sensors and connector blocks is also shown. The details about the single parts of the measuring chain are given. The paper also shows the view on the sensors through the photographs. Some results from a testing measurement are also shown and the results from the selected sensors can be compared. The two different intercoolers are used for charging air cooling. The first intercooler is the air/air type equipped with a ventilator, the second intercooler is the water/air type without a ventilator. The total displacement of an engine is 7.61. The measurement itself is aimed mainly to acquire information regarding the influence of the low temperatures of charging on the amount of NOx. Also the influence on the amount of particulate matter is examined through the mentioned measurement.
Źródło:: Journal of KONES; 2011, 18, 2; 419-426
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Electron beam treatment of simulated marine diesel exhaust gases
Autorzy:: Licki, J.
Pawelec, A.
Zimek, Z.
Witman-Zając, S.
Powiązania:: https://bibliotekanauki.pl/articles/148426.pdf
Data publikacji:: 2015
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: electron accelerator
electron beam treatment
free radicals
marine diesel exhaust gases
NOx removal
seawater scrubber
Opis:: The exhaust gases from marine diesel engines contain high SO2 and NOx concentration. The applicability of the electron beam flue gas treatment technology for purification of marine diesel exhaust gases containing high SO2 and NOx concentration gases was the main goal of this paper. The study was performed in the laboratory plant with NOx concentration up to 1700 ppmv and SO2 concentration up to 1000 ppmv. Such high NOx and SO2 concentrations were observed in the exhaust gases from marine high-power diesel engines fuelled with different heavy fuel oils. In the first part of study the simulated exhaust gases were irradiated by the electron beam from accelerator. The simultaneous removal of SO2 and NOx were obtained and their removal efficiencies strongly depend on irradiation dose and inlet NOx concentration. For NOx concentrations above 800 ppmv low removal efficiencies were obtained even if applied high doses. In the second part of study the irradiated gases were directed to the seawater scrubber for further purification. The scrubbing process enhances removal efficiencies of both pollutants. The SO2 removal efficiencies above 98.5% were obtained with irradiation dose greater than 5.3 kGy. For inlet NOx concentrations of 1700 ppmv the NOx removal efficiency about 51% was obtained with dose greater than 8.8 kGy. Methods for further increase of NOx removal efficiency are presented in the paper.
Źródło:: Nukleonika; 2015, 60, No. 3, part 2; 689-695
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Emission inventory of exhaust gases from oil - fired ship boilers
Autorzy:: Myśków, J.
Borkowski, T.
Powiązania:: https://bibliotekanauki.pl/articles/242902.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ship
oil-fired boiler
marine diesel engine
exhausts emission
Opis:: Regulations concerning the limitation of harmful compounds emission contained in exhaust gases become more restrictive. This is observed within regulations regarding land-based installations and also rules applied to ships of global trade fleet. Other restrictions of vessels emissions, enclosed in rules set out in Annex IV of Marpol Convention 73/78 are gradually implemented and establish emission limits for ship engines. The boiler delivers the heat energy required for fuel preparation for main and auxiliary engines - and also by consuming fuel in its combustion chamber becomes and emitter. This article describes the anticipated methodology of the boiler steam efficiency, depending on the main engine installed. Additionally, fuel oil consumption analysis in various steam capacity range performed using the histograms. The histograms were produced on the basis of service reports of similar units, and combining fuel oil consumption with exhaust emission during operation. A vessel engine report includes monthly machinery abstract and is compiled for a ship-owner on the basis of the log book records. Quantified exhaust emission from auxiliary oil fired boiler contributes determination the overall emissions from a ship.
Źródło:: Journal of KONES; 2012, 19, 4; 487-494
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Temperature estimating method for exhaust gases in valveless pulsejet engine
Autorzy:: Trzeciak, Adrian
Gieras, Marian
Powiązania:: https://bibliotekanauki.pl/articles/2097471.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: pulsating combustion
pulsejet
temperature measurement
periodic flow
combustion chamber
spalanie pulsujące
silnik pulsacyjny
pomiar temperatury
przepływ okresowy
komora spalania
Opis:: The article describes the problem of measuring the temperature in a pulse combustion chamber. The object of the study is a valveless pulsejet. The problem is analysed on the example of exhaust gases temperature measurement. The measurement in these conditions requires the use of a sensor resistant to large changes in gas velocity and temperature and at the same time with adequatly low inertia. This excludes the use of fast and precise yet thin, resistant wire sensors or ultrafast thin film thermocouples. Finally, a temperature measurement system based on sheated thermocouples was chosen. During each test the thermocouple has its own temperature which is different from the medium temperature. In order to properly determine the measured temperature of flowing media it is necessary to take the sensor time characteristics into account. In this article the iteration method is proposed to solve this problem.
Źródło:: Combustion Engines; 2020, 59, 3; 3--9
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Cooling of exhaust gases as a possibility to increase stealth properties of military helicopters
Autorzy:: Paszko, M.
Powiązania:: https://bibliotekanauki.pl/articles/246612.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: helicopter
exhaust
radiation
cooler
stealth
helikopter
gazy spalinowe
promieniowanie
chłodnica
Opis:: Helicopters, in comparison to other aircrafts, have much lower flight speeds and manoeuvrability, which makes them easy targets for actual combat assets like ground to air or air-to-air infrared-guided missiles. Current techniques aim to increase the combat effectiveness and lifetime of military helicopters performing combat missions by reducing the possibility of their detection on battlefield, thereby increasing their flight time without fire attack and reduce effects of potential strike. When designing new helicopter types, especially for combat applications, it is essential to pay enormous attention to infrared emissions of the solid parts composing the helicopter’s structure, as well as to exhaust gases egressing from the engine’s exhaust system. Due to their high temperature, exhaust gases, egressed to the surrounding are a major factor in infrared radiation emission level and, in consequence, detectability of a helicopter performing air combat operations. This article presents the possibility to decrease the infrared radiation level that is emitted to the environment by helicopter in flight, by cooling hot exhaust in special ejective cooler. Article presents also the exhaust cooler operation principles and results of numeric analysis of concept exhaust cooler adapted to cooperate with PA-10W turbine engine. Numeric analysis presented promising results in decreasing the infrared emission level by PA W-3 helicopter in flight, as well as increasing its stealth properties.
Źródło:: Journal of KONES; 2017, 24, 1; 281-290
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Numerical investigation of a novel burner to combust anode exhaust gases of SOFC stacks
Autorzy:: Pianko-Oprych, P.
Jaworski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/779945.pdf
Data publikacji:: 2017
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: burner
non-premixed combustion
CFD
geometry optimisation
Opis:: The aim of the present study was a numerical investigation of the efficiency of the combustion process of a novel concept burner under different operating conditions. The design of the burner was a part of the development process of a complete SOFC based system and a challenging combination of technical requirements to be fulfilled. A Computational Fluid Dynamics model of a non-premixed burner was used to simulate combustion of exhaust gases from the anode region of Solid Oxide Fuel Cell stacks. The species concentrations of the exhaust gases were compared with experimental data and a satisfactory agreement of the conversion of hydrocarbons was obtained. This validates the numerical methodology and also proves applicability of the developed approach that quantitatively characterized the interaction between the exhaust gases and burner geometry for proper combustion modelling. Thus, the proposed CFD approach can be safely used for further numerical optimisation of the burner design.
Źródło:: Polish Journal of Chemical Technology; 2017, 19, 3; 20-26
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Model of CO emission level of exhaust gases in tractor engines fed with biofuels
Autorzy:: Wawrzosek, J.
Piekarski, W.
Powiązania:: https://bibliotekanauki.pl/articles/24894.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: degradation process
natural environment
agricultural tractor
carbon oxide
emission level
gas
biofuel
carbon monoxide
rapeseed methyl ester
Źródło:: International Agrophysics; 2006, 20, 4
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The influence of diesel engines thermal condition on fuel consumption and smoke of exhaust gases
Autorzy:: Pukalskas, S.
Pikunas, A.
Bureika, G.
Powiązania:: https://bibliotekanauki.pl/articles/245614.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: diesel engines fuel consumption
engine's thermal condition
temperature of engine's cooling liquid
smoke in exhaust
Opis:: The number of vehicles in the world is growing rapidly. Therefore, the global consumption of crude oil is increasing and its natural resources are being depleted. It causes the rise of oil fuel cost. Constantly rising energy prices and emironmental concerns have made energy saving the highest priority for transportation operators. The main goal of vehicles' operation is economy. The fuel consumption of the most popular internal combustion engines depends on various factors, and one of the most important of them is thermal condition. Energy or fuel saving is the main way to reduce operational expenses of vehicles. This paper aims to investigate fuel consumption of 1.9 liter volume direct injection diesel engine and to construct a diagram of the dependence of the amount of smoke in exhaust on the temperature of engine's operation. The temperature was fixed in the engine's crankcase, while the temperature of cooling liquid was measured at four points as well as during the engine's bench testing. Unexpected test results are obtained: when the temperature of exhaust gases rises above 70-75 °C, the amount of smoke increases by a few times. Finally, basic conclusions and recommendations are given.
Źródło:: Journal of KONES; 2009, 16, 3; 319-324
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Laser research of fuel atomization and combustion processes in the aspect of exhaust gases emission
Autorzy:: Jankowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/243315.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
fuel preparation
combustion processes
fuel spray
ecology
Opis:: The fuel injection phenomena belongs to the most essential processes, which are object of many experimental and theoretical works, indispensable for development of contemporary internal-combustion engines, both the spark and compression ignition. The direct injection of fotel to the engine combustion chamber belongs to most advanced solutions and must realize at least two or even more different strategies of engine performance. Article presents the various research methods of the fuel atomization processes, being concentrated on laser methods, from which deserves on the emphasis the Particle Image Velocimetry (PIV) system, the Laser Doppler Velocimeter (LDV) system and Phase Doppler Particle Analyzer (PDPA) system. Article presents theoretical analysis relating the atomized fuel stream. The results of research based on the laser research equipment are also submitted in the article. Moreover presented are the results ofresearch of the combustion process in the fixed volume chamber, where essentially two different strategies of the combustion process of homogenous and heterogeneous load were realized. The properly shaped fuel stream permits on obtainment of repeatable ignition and combustion in the wide range of the mixture variance. The essential meaning has the fuel stream disintegration, which influences advantageously on the level of the toxic exhaust elements emission, particularly on the hydrocarbon emission level because of the ignition dropout elimination and on the level of the nitrogen oxides emission because of short sojourn time of the fuel droplets in the combustion zone.
Źródło:: Journal of KONES; 2008, 15, 1; 119-126
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Numerical modelling of the thermo-mechanical response of a rocket motor to exhaust gases load
Autorzy:: Orłowska, M.
Panas, A. J.
Rećko, K.
Żyluk, A.
Powiązania:: https://bibliotekanauki.pl/articles/280124.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: solid propellant rocket motors
thermo-elastic FEM analysis
nozzle thermal load
Opis:: A numerical model for analysis of thermal and mechanical loads of a rocket motor has been developed. This model of a solid propellant motor corresponds to a short range, fast lunch and cruise type missile. It has been elaborated using the Finite Element Method (FEM) incorporated into commercial Comsol/M code. The experimental data on the thrust profile have been utilised to develop proper initial and boundary conditions for forgoing numerical calculations. The studies have been focused on the temperature and stress evolution within the case and nozzle section of the rocket engine. A special attention has been paid to the graphite insert of the rocket motor throat. The performed analyses proved effectiveness of the modelling methodology that will be applied to investigations of the modified motor performance.
Źródło:: Journal of Theoretical and Applied Mechanics; 2014, 52, 3; 803-814
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Oczyszczanie spalin samochodowych za pomocą pola elektrycznego
Cleaning vehicles Exhaust gases by the electric field
Autorzy:: Urbanowicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/135978.pdf
Data publikacji:: 2016
Wydawca:: Wyższa Szkoła Techniczno-Ekonomiczna w Szczecinie
Tematy:: cząstki stałe PM
filtracja spalin
pole elektryczne
zapłon ZS
particle the solid PM
filtration of fumes
electric field
ignition of diesel
Opis:: Wstęp i cele: W artykule wskazano na nowe możliwości filtracji cząstek stałych w samochodach z zapłonem ZS. Materiał i metody: Badaniu poddano własny materiał techniczny. Zastosowano metodę eksperymentu i teoretycznej analizy wyników. Wyniki: Wyniki pomiarów pokazują, że filtr DPF wyraźnie zwiększa skuteczność filtracji spalin o ponad 60% w stosunku do układu bez filtra DPF. Po dodaniu filtra elektrycznego skuteczność filtracji wzrasta dalej o ponad 30%. Skuteczność działania filtra elektrycznego w stosunku do filtra fabrycznego, spowodowana jest małą masą cząstek stałych emitowanych z układu wydechowego samochodu oraz stosunkowo niewielkim, w porównaniu do emisji przemysłowej, natężeniem ich wypływu. Wniosek: Osiągnięte wyniki pomiarów wskazują na skuteczne działanie dodatkowego filtra elektrycznego dodanego do układu wydechowego.
Introduction and aim: In the article has been shown on new possibilities of filtration of solid particles in cars from engine of diesel. Material and methods: The study involved its own technical material. The method of experiment and theoretical analysis of the results. Results: The measurement results show that the DPF significantly increases the effectiveness of filtering exhaust gas of over 60% compared to the system without the DPF. After addition of the electric filter filtering efficiency is further increased by over 30%. The effectiveness of the electric filter against the filter factory is caused by the low weight of particles emitted from the exhaust system of the car and the relatively small compared to industrial emissions, the intensity of the discharge. Conclusion: Obtained test results indicate the effective operation of the additional electrical filter is added to the exhaust system.
Źródło:: Problemy Nauk Stosowanych; 2016, 5; 99-104
2300-6110
Pojawia się w:: Problemy Nauk Stosowanych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: An attempt of exhaust gases composition prediction in si engines powered by petrol and gaseous fuels
Autorzy:: Flekiewicz, M.
Kubica, G.
Flekiewicz, B.
Powiązania:: https://bibliotekanauki.pl/articles/245747.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: CNG
LPG
exhaust gases
SI engine
combustion analysis
Opis:: Optimization procedure of the si engines feeding systems requires the application of newer and more sophisticated tools, as an addition to well known but expensive experimental methods. Numerical methods can be considered nowadays as once playing the most important role in the combustion process analysis. Paper describes the application of the dual zone model, allowing the analysis of the combustion process in an SI engine with the possibility of estimating 10 different exhaust gases i.e.: CO2, CO, H2O O2, NO, N2, H2, H, O and OH. The research has been carried on a 1.6 litr es four cylinder SI engine, fed with petrol and alternatively with LPG and CNG. In-cylinder pressure for the 4th cylinder of the tested engine has been acąuired for several engine speeds. registered in-cylinder pressure traces p=p((fi), together with the volume variation nii=nii((fi) infunction ofcrank angle, were used in the combustion process simulating calculations. Obtained results made it possible to compare selected parameters describing the combustion process. Obtained results do also prove recognized fact related to the higher temperature necessary to initiate gaseous fuel combustion.
Źródło:: Journal of KONES; 2009, 16, 4; 105-113
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Analysis of selected mineral and waste sorbents for the capture of elemental mercury from exhaust gases
Autorzy:: Wdowin, Magdalena
Macherzyński, Mariusz
Panek, Rafał
Wałęka, Mateusz
Górecki, Jerzy
Powiązania:: https://bibliotekanauki.pl/articles/127635.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: mercury capture
exhaust gas
minerals
waste products
Opis:: Several mineralogically, chemically and texturally diverse minerals and waste materials were selected for the testing of elemental mercury capture in exhaust gas, namely tyre char resulting from the burning of pyrolytic rubber tyres, class C fly ash, mesoporous material type MCM-41 and glauconite. Each material's mineralogical, chemical and textural characteristics were explored. In order to conduct experiments in conditions similar to those during the contact of sorbent with real coal exhaust fumes at a temperature of about 110-120°C, the experiments were carried out using a test device consisting of a furnace for burning powdered coals, a thermostatic cage for sorbent reactors and mercury gas analysers, which are able to measure and compare the effects of individual sorbents with exhaust gas. The study found that the best results for mercury sorption in the exhaust atmosphere were obtained for class C ash resulting from brown coal combustion.
Źródło:: Mineralogia; 2020, 51, 1; 17-35
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Electron beam flue gas treatment process for purification of exhaust gases with high SO2 concentrations
Autorzy:: Chmielewski, A. G.
Licki, J.
Powiązania:: https://bibliotekanauki.pl/articles/146442.pdf
Data publikacji:: 2008
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: high sulphur fossil fuel
flue gas
electron accelerator
SO2 and NOx removal efficiency
absorbed dose
by-product
Opis:: Exhaust gases with high SO2 concentrations are emitted from combustion of high sulphur fossil fuels and from different industrial processes (e.g. copper smelter and sintering plants). The application of the electron beam process for SO2 and NOx removal from such flue gases was investigated. A parametric study was carried out to determine the SO2 and NOx removal efficiency as a function of temperature and humidity of irradiated gases, absorbed dose and ammonia stoichiometry. The efficiency 90–95% of SO2 removal was obtained in the optimal treatment conditions with an inlet SO2 concentration of up to 15% vol. The synergistic effect of high SO2 content on NOx removal was indicated. The collected by-product was a mixture of ammonium sulphate and nitrate. The content of heavy metals in the by- -products was many times lower than the values accepted for commercial fertilizers.
Źródło:: Nukleonika; 2008, 53, suppl. 2; 61-66
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Simulation of exhaust gases components formation in engine working with combustion initiation from ignition dose of fuel
Autorzy:: Sendyka, B.
Mitianiec, W.
Noga, M.
Powiązania:: https://bibliotekanauki.pl/articles/242242.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: modelling
simulation
spark ignition
compression ignition
exhaust gases emission
Opis:: The paper deals with problems of model analysis of the process of exhaust gases components formation in internal combustion engine working with combustion initiation from ignition dose of fuel injected directly into the working space. In result of scientific-research works carried out in the Chair of Internal Combustion Engines of Cracow University of Technology on the basis of a four stroke engine a driving unit was elaborated which may work both with spark ignition and combustion initiation from a ignition dose of fuel. Application of two combustion systems in engine aimed at combining the advantages of spark ignition with compression ignition driving units. Such an engine is characterized by fuel consumption comparable with that gained by compression ignition engines, whereas, the exhaust gases composition is similar to that occurring in up-to-date spark ignition engines. Similar assumption concern the Homogenous Charge Compression Ignition - HCCI system which seems to be a future solution of internal combustion engines, nevertheless, up till now, in spite of intensive works in many countries all over the world, one did not succeed to control the combustion process in a large range of rotational speeds and loads what would give the possibility of using it in traction application. The solution proposed in the patent application by Prof. B. Sendyka is not burdened with this drawback since the moment of occurrence of volumetric ignition of the formed mixture in the process of filling is tightly connected with the moment of fuel dose injection. In result of simulative studies carried out by use of KIVA-3V software on the discussed solution it was stated that the process of exhaust gases toxic components formation in engine working in the mode of ignition from pilot dose does not depart in generally form from that which occurs at work with spark ignition.
Źródło:: Journal of KONES; 2011, 18, 2; 391-396
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 16.

Tytuł:: The effectiveness of modified sodium bicarbonate in the purification of exhaust gases from HCl and HF
Autorzy:: Wysocki, D.
Szymanek, A.
Powiązania:: https://bibliotekanauki.pl/articles/2201060.pdf
Data publikacji:: 2022
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: sodium bicarbonate
removal of HCl
removal of HF
mechanical activation
thermal activation
dry sorbent injection
wodorowęglan sodu
aktywacja mechaniczna
aktywacja termiczna
wtrysk suchych sorbentów
DSI
Opis:: Purpose The effectiveness of gas purification depends on the sorption properties of sorbents. The aim of the research was to determine the ability of sodium sorbents to remove gaseous pollutants such as HCl and HF. Design/methodology/approach The research used baking soda subjected to mechanical and thermal activation, which was introduced into the hot flue gas circuit, similar to the dry flue gas cleaning method used in all kinds of boilers. Findings In almost all cases, mechanical and thermal treatment of baking soda allowed for a significant improvement in the reduction of hydrogen chloride and hydrogen fluoride concentrations in the exhaust gases produced during the combustion of polyethylene terephthalate (PET) bottles. Research limitations/implications The preparation of sorbents must consider the optimum development of the material's specific surface area, especially during thermal activation, to prevent pores from sintering. Practical implications In wet and dry flue gas cleaning processes, sodium compounds are used in the power industry. Appropriate preparation of the sorbent allows for improving the effectiveness of reducing the concentration of harmful substances and reducing investment and operating costs. Originality/value From the point of view of process optimisation, the results obtained will contribute to the identification of optimal operating conditions in dry sorbent injection systems to prevent the pores on the surface of the sorbent from clogging when injected into hot flue gases.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2022, 114, 2; 57--66
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:: The influence of the shape of the combustion chamber on exhaust gases toxicity in T370 engine
Autorzy:: Kalina, P.
Kawalec, M.
Powiązania:: https://bibliotekanauki.pl/articles/243782.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: diesel engine
combustion chamber
geometry
toxicity
Opis:: An important issue in construction of combustion chamber in compression-ignition engines is proper selection of its shape and size. Both features are dependent on several factors such as fuel injector location and angle, spray atomizer selection (amount of holes, their diameter and angular position), location of inlet valve and air turbulence. By doing research on prototype engine T370, an analysis of influence of combustion chamber size and its modifications going towards lip construction on flue gas toxicity was done. The diameter and depth of combustion chamber was being changed while maintaining the same compression ratio. After that, a modification of tested combustion chambers was made by creating so called “lip”, which aim was to create a swirl of injected fuel in the vertical plane. To visualize the changes in swirl, a numerical analysis of fuel injection into combustion chamber was made. In discussed study, emission tests were performed according to ECE-R49. During the research six combustion chambers with diameters 60, 63 and 66 mm (and their modification) were investigated. Tests were performed for several types of injectors and different injection timing. However, for analysis of combustion chamber size the results are presented for the same injectors but with optimized injection timing.
Źródło:: Journal of KONES; 2015, 22, 2; 104-108
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 18.

Tytuł:: Determination of rational design values for gas-air coolers components of exhaust gases of marine power plants
Autorzy:: Kuznetsova, Svitlana
Kuznetsov, Valerii
Voloshyn, Andrii
Powiązania:: https://bibliotekanauki.pl/articles/34615989.pdf
Data publikacji:: 2023
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: vessel
marine power plant
environmental parameters
emissions
gas-air cooler
nozzle
Opis:: Modernisation of marine power plants in the transport vessel fleet to satisfy the requirements of the International Maritime Organization is an urgent scientific and technical problem. Currently, the use of catalytic selective filters, dry and wet scrubber systems and exhaust gas recirculation for marine diesel engines is widely used for this purpose. An analysis of the use of ejection gas-air coolers is presented as an additional method of emission reduction. However, the use of such device does not neutralise the harmful emissions of power plant engines, but only increases the volume concentration of their exhaust gases. But this will help to increase the efficiency of dispersion of harmful emissions, by reducing the concentration of harmful emissions to values not exceeding the maximum permissible concentrations. Its efficiency depends on the load mode of the diesel engine. It is found that the initial concentration of harmful substances in combustion products due to their dilution with fresh air at 100% engine load is reduced by about 50%. The values of the reduction of the concentration and temperature of exhaust gases with the reduction of the engine load to 75% and 50% depending on the louvre angle are obtained. It is proved that ejection gas-air coolers can be an effective additional means for compliance with modern environmental parameters, especially when vessels are in special areas of the world’s oceans.
Źródło:: Polish Maritime Research; 2023, 3; 81-88
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 19.

Tytuł:: Assessment of operating parameters of marine gas turbine engine in terms of emissions of harmful exhaust gases compounds
Autorzy:: Wirkowski, P.
Kniaziewicz, T.
Markowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/2073644.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: harmful compounds
emission
exhaust gases
marine gas turbine engine
związki szkodliwe
emisja spalin
silnik okrętowy
turbina gazowa
Opis:: The article presents an analysis of the use of gas turbine engine in the propulsion and marine power plant of vessels, taking into account environmental aspects. The preliminary results of emission tests of harmful exhaust emissions of the laboratory gas turbine engine were presented. Also an analysis was also undertaken on the possibility of carrying out measurements of concentrations of pollutants in the marine gas turbine engine propulsion systems in terms of its operation on the vessel.
Źródło:: Journal of Polish CIMEEAC; 2016, 11, 1; 189--197
1231-3998
Pojawia się w:: Journal of Polish CIMEEAC
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 20.

Tytuł:: The Influence of Olive Oil Waste as a Biofuel on the Exhaust Gases of the Internal Combustion Engine
Autorzy:: Al-Aseebee, Munaf D. F.
Naje, Ahmed Samir
Powiązania:: https://bibliotekanauki.pl/articles/24201727.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: olive oil
waste
biofuel
combustion
engine
Opis:: Future options for addressing the depletion of fossil fuels and reducing pollution from internal combustion engines may include biofuel as an alternative fuel. This study aims to experimentally and statistically assess the effect of using diesel-biofuel blends on the emissions of a single-cylinder direct-injection engine. Using recycled olive oil, a chemical Tran’s esterification process was used to create biofuel. The experimental results were contrasted with those of a one-dimensional engine model for exhaust emissions and torque, which showed high agreement between test and numerical data. In order to comprehend the factors that affect the engine’s reaction to variations in fuel composition, the thermodynamic characteristics of the engine for various blends were also supplied. According to the investigation, a mixture with 20% of the volume fraction of oleic acid methyl ester olive-based biofuel and 80% of the volume fraction of pure diesel can be an effective fuel alternative for cleaner exhaust emissions while offering almost the same performance.
Źródło:: Journal of Ecological Engineering; 2023, 24, 5; 322--328
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 21.

Tytuł:: Clinoptilolite as a mineral usable for cleaning of exhaust gases
Klinoptilolit jako minerał przydatny do oczyszczania gazów spalinowych
Autorzy:: Mačala, J.
Pandová, I.
Panda, A.
Powiązania:: https://bibliotekanauki.pl/articles/216171.pdf
Data publikacji:: 2009
Wydawca:: Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:: zeolity
klinoptylolit
własności sorpcyjne
silnik spalinowy
gazy spalinowe
zeolites
clinoptylolite
sorption properties
combustion engines
exhaust gasses
Opis:: Natural and synthetic zeolites have been the subject of worldwide scientific research for several decades. Increased attention is paid to utilization of zeolites in environmental protection. The interest in zeolites is related to their unique structure and the related chemical and physical properties which form the basis of their potential ecological, industrial and agricultural applications. The paper presents partial results of research focused on the use of natural zeolite clinoptilolite for reduction of nitrogen monoxide, the component of combustion engines exhaust gases. Experiments were carried out with natural zeolite and also its modified forms. The results obtained allowed us to state that clinoptilolite is a prospective material for application in the treatment of exhaust gasses from combustion engines.
Naturalne i syntetyczne zeolity badane są od kilku już dekad przez grona naukowców na całym świecie. Coraz więcej uwagi przywiązuje się do wykorzystania zeolitów do celów ochrony środowiska. Zainteresowanie zeolitami związane jest z ich unikalną strukturą i właściwościami chemicznymi i fizycznymi, które stanowią podstawę do potencjalnego ich zastosowania w ekologii, przemyśle i rolnictwie. Artykuł przedstawia częściowe wyniki badań dotyczące przydatności naturalnego zeolitu - klinoptilolitu do redukcji tlenku azotu, który jest składnikiem gazów spalinowych powstających podczas pracy silnika spalinowego. Przeprowadzono eksperymenty z naturalnym zeolitem oraz z jego zmodyfikowanymi formami. Uzyskane wyniki pozwalają na stwierdzenie, że klinoptilolit jest obiecującym materiałem, który może być zastosowany do oczyszczania gazów powstających podczas pracy silników spalinowych.
Źródło:: Gospodarka Surowcami Mineralnymi; 2009, 25, 4; 23-32
0860-0953
Pojawia się w:: Gospodarka Surowcami Mineralnymi
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 22.

Tytuł:: Problems of modelling NOx emission from marine diesel engine
Autorzy:: Kniaziewicz, T.
Powiązania:: https://bibliotekanauki.pl/articles/244726.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: emission
exhaust gases
engine
ship
modelling
Opis:: The development of marine diesel engines has so far been directed towards increasing their power, reducing fuel consumption, burning fuels of the lowest possible quality and the extension of operation time. The rising pro-ecological pressure has made atmosphere pollution by exhaust gases of marine engines one of the main problems of environmental protection of recent years. The Gdansk Bay area, just like sea ports or coastal regions, is vulnerable to the effect of noxious compounds contained in vessel exhaust gases, besides those coming from industrial plants, power plants or vehicles. This concerns vessels both in ports and in the roads. In order to determine the share of vessels in environmental pollution and to counteract the harmful effects of toxic compounds in marine engine exhaust gases, it is necessary to know the emission values of these compounds from particular vessels, which is possible with the knowledge of their movement parameters, concentration values of particular compounds for these parameters and the atmospheric conditions. The report presents problems of modelling the NOx emission in exhaust gases from main marine Diesel engines, such as problems with construction special models describing the marine vessels movement or define real value of toxic compounds emission.
Źródło:: Journal of KONES; 2008, 15, 4; 227-234
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 23.

Tytuł:: Wpływ parametrów regulacyjnych silnika zs na zawartość składników toksycznych i zadymienie spalin
The impact of si engine controlling parameters on the content of toxic components and smokiness of exhaust gases
Autorzy:: Sobieszczański, M.
Brzozowski, K.
Nowakowski, J.
Tekielak, M.
Powiązania:: https://bibliotekanauki.pl/articles/300682.pdf
Data publikacji:: 2008
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: silnik ZS
składniki toksyczne spalin
zadymienie spalin
SI engine
toxic components exhaust gases
smoking exhaust gases
Opis:: W referacie przedstawiono wyniki badań doświadczalnych doładowanego, cztero- cylindrowego silnika o zapłonie samoczynnym o objętości skokowej 1,7 dm3 z bezpośrednim wtrys. iem paliwa. W badaniach szczególny nacisk położono na możliwość uwzględnienia sterowania dawką paliwa, kątem wyprzedzenia wtrys. u, stopniem recyrkulacji spalin oraz temperaturą i ciśnieniem ładunku w kolektorze dolotowym w celu określenia zawartości składników toksycznych i zadymienie spalin. Wyniki badań przedstawiono w postaci funkcji aproksymacyjnych wielu zmiennych. Zmiennymi są wymienione powyżej parametry regulacyjne silnika. Przedstawiono analizę wyników badań i wskazano możliwość zastosowania wyznaczonych funkcji aproksymacyjnych w optymalizacji parametrów regulacyjnych silnika, której celem jest dobranie takich wartości parametrów regulacyjnych, które zapewniają zmniejszenie zawartości tlenków azotu w spalinach przy dopuszczalnej zawartości innych składników toksycznych oraz przy zachowaniu założonych wartości parametrów eksploatacyjnych silnika.
In the paper the results of experimental investigations on a turbocharged, four-cylinder direct injection SI engine with the displacement of 1.7 dm3 are presented. In the investigations, particular attention was paid to the possibility of including the control of fuel dose, injection advance angle, exhaust gas recirculation rate and the temperature and pressure of air charge in the inlet manifold with the intent to determine the content of the toxic components and the smokiness of exhaust gases. The results of the investigations are presented in the form of approximation functions of several variables. The variables are the engine control parameters mentioned above. An analysis of the investigation results is presented and a possible application of the approximation functions in the optimisation of engine control parameters is indicated with the aim of selecting such values of control parameters as would guarantee a reduction of the nitrogen oxides content in the exhaust gases while maintaining the content of other toxic components and the assumed engine exploitation parameters on an acceptable level.
Źródło:: Eksploatacja i Niezawodność; 2008, 3; 53-61
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 24.

Tytuł:: Wpływ szkodliwych składników spalin na zdrowie człowieka
The influence of harmful components of the exhaust gases on human health
Autorzy:: Szczęsny, P.
Orlicz-Szczęsna, G.
Powiązania:: https://bibliotekanauki.pl/articles/316136.pdf
Data publikacji:: 2016
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:: spaliny
toksyczność spalin
wpływ na zdrowie człowieka
szkodliwe składniki spalin
exhaust
fumes
toxicity of fumes
influence on human health
harmful components of exhaust gases
pollutans
Opis:: W pracy przedstawiono analizę oddziaływań szkodliwych składników spalin silnikowych na zdrowie człowieka. W oparciu o badania wykonane w warunkach laboratoryjnych, na silniku BMW N43B20AY analizatorem AVL SESAM-FTIR, w przeprowadzonych analizach uwzględniono ilości tworzących się substancji szkodliwych, a także wydajność katalizatora trójfunkcyjnego w zakresie konwersji poszczególnych składników spalin. Uwzględniono aktualne dane, charakteryzujące emisję substancji szkodliwych ze środków transportu drogowego.
The paper analyses the influence of harmful fume’s components on human health. On the basis of tests carried out under laboratory conditions on the BMW N43B20AY engine using analyser AVL SESAM-FTIR, in the research carried out account has been taken of the amount of forming of harmful substances and also the possibilities of a trifunctional catalyst converter in the field of conversion of the particular fume’s components. In the paper the current data of the emission of harmful substances from the car’s road transport were included.
Źródło:: Autobusy : technika, eksploatacja, systemy transportowe; 2016, 17, 6; 425-428
1509-5878
2450-7725
Pojawia się w:: Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 25.

Tytuł:: Negation of Logistics Rules in Managing the Operation of Motorways in Poland
Autorzy:: Czyrka, Krzysztof
Frąś, Józef
Borowiecka, Olga
Frąś, Marcin
Powiązania:: https://bibliotekanauki.pl/articles/503906.pdf
Data publikacji:: 2018
Wydawca:: Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:: logistics,
motorway,
car,
exhaust gases,
environment
Opis:: Costs for tolling a motorway in Poland should take into account not only profits of owners and managers, but also difficulties and losses incurred by road users. Lack of smoothness of travel as well as high tolls do not have a positive impact on the country's economic development. The nervousness and stress of drivers and passengers trapped in cars standing in traffic jams in front of the gates on motorways - they indicate an important social problem. The costs of fuel burnt during forced stops, costs of harmful effects on the environment, pollution from car exhaust emissions while waiting on the highway in front of the gates – they all are a significant burden. Failure to ensure the conditions for a smooth ride causing the need to wait on the highway in front of the gates is an example of disregarding people, wastage and deliberate harm to the environment for disproportionate profits charges for using the highways.
Źródło:: Logistics and Transport; 2018, 39, 3; 15-20
1734-2015
Pojawia się w:: Logistics and Transport
Dostawca treści:: Biblioteka Nauki

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