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Tytuł:
91 lat Głównego Instytutu Górnictwa Kopalni Doświadczalnej „Barbara” w służbie bezpieczeństwa przemysłowego
91 Years of the Central Mining Institute’s (GIG) Experimental Mine “Barbara” in the service of industrial safety
Autorzy:
Cybulski, K.
Sobala, J.
Powiązania:
https://bibliotekanauki.pl/articles/92717.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
badania
podziemny poligon doświadczalny
sztolnia
bezpieczeństwo
wybuch pyłu węglowego
wybuch metanu
tests
underground experimental proof ground
drift
safety
coal dust explosion
methane explosion
Opis:
W artykule przedstawiono jedyną w Polsce i Europie placówkę naukowo-badawczą – Kopalnię Doświadczalną „Barbara” posiadającą poligon doświadczalny umożliwiający wykonywanie badań urządzeń, sprzętu, materiałów i procedur postępowania w rzeczywistych warunkach dołowych. KD „Barbara” działa od 1925 r. stojąc na straży bezpieczeństwa w górnictwie, a także w innych gałęziach przemysłu. Realizuje również badania certyfikujące w ramach Jednostki Notyfikowanej Głównego Instytutu Górnictwa (GIG) dla następujących dyrektyw: 2013/29/UE, 2014/28/UE i 2014/34/UE.
In this article, a presentation is made of the only research and testing facility in Poland and indeed Europe – „Barbara” Experimental Mine – possessing an underground proving ground enabling the conduct of tests on: devices, equipment, materials and procedures in actual underground conditions. „Barbara” Experimental Mine has been working since 1925 in upholding the safety of mining as well as other branches of industry. It also carries out certification tests under the auspices of the Notification Body of the Central Mining Institute (GIG) for the following directives: 2013/29/UE, 2014/28/UE and 2014/34/UE.
Źródło:
Materiały Wysokoenergetyczne; 2016, T. 8; 5-12
2083-0165
Pojawia się w:
Materiały Wysokoenergetyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A concept of Enhanced Methane Recovery by high pressure CO2 storage in abandoned coal mine
Koncepcja intensyfikacji wydobycia metanu poprzez wysokociśnieniowe składowanie CO2 w zlikwidowanej kopalni
Autorzy:
Lutyński, M.
Powiązania:
https://bibliotekanauki.pl/articles/216194.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
dwutlenek węgla
zlikwidowana kopalnia węgla
składowanie CO2
sorpcja gazu
intensyfikacja wydobycia metanu
carbon dioxide
abandoned coal mine
CO2 storage
gas sorption
Enhanced Methane Recovery
Opis:
Due to increasing carbon dioxide emissions new methods of carbon capture and storage away from biosphere are being under investigation. Considering favorable geological structure i.e.: impermeable overburden and large volume of mine voids one of the places of geological CO2 storage can be abandoned underground coal mines. The article presents the concept of CO2 high pressure storage in abandoned coal mine as one of the methods of its geological sequestration. CO2 can be stored in a mine as a free gas, gas dissolved in water and gas adsorbed in remaining coal seams. Estimation of storage capacity of a mine was done with the use of data from the mine as well as laboratory sorption experiments. Estimated storage capacity of a case study mine as a high pressure CO2 sink was 8.09 ź 106 t. Enhanced methane recovery from remaining coal seams which may occur after CO2 injection was also analyzed. For the purpose of the study reservoir simulator for unconventional reservoirs was used. Input data were typical for Upper Silesian Coal Basin. Results of the study indicate that injection of CO2 into a mine enhance methane recovery through surface wells.
Wobec zwiększającej się emisji dwutlenku węgla zmierza się do redukcji emisji tego gazu ze źródeł stacjonarnych. Przy założeniu odpowiednich warunków geologicznych takich jak: szczelność nadkładu i duża objętość pustek poeksploatacyjnych jednym z miejsc podziemnego (geologicznego) składowania CO2 mogą być zlikwidowane kopalnie węgla kamiennego. W artykule przedstawiono koncepcję wysokociśnieniowego składowania CO2 w zlikwidowanej kopalni węgla kamiennego jako jedną z metod składowania tego gazu. Dwutlenek węgla może być składowany w kopalni jako gaz wolny, gaz rozpuszczony oraz jako gaz zaadsorbowany w pozostałych pokładach węglowych. Oszacowano pojemność przykładowej kopalni węgla kamiennego jako wysokociśnieniowego składowiska CO2 na podstawie danych z kopalni oraz pomiarów sorpcji tego gazu na węglu. Całkowita ilość CO2 jaki mógłby zostać zmagazynowany w kopalni wynosi około 8,09 ź 106 t. Przeanalizowano również możliwość stymulacji odzysku metanu z pozostałych resztek pokładów węglowych, jaka może zaistnieć po zatłoczeniu CO2 pod ciśnieniem do kopalni. W tym celu użyto symulatora złożowego złóż niekonwencjonalnych i danych charakterystycznych dla Górnośląskiego Zagłębia Węglowego. Symulacje wykazały znaczny wpływ zatłaczania CO2 do kopalni na uzysk metanu w otworach wierconych z powierzchni i ponad dwukrotne zwiększenie wydobycia tego gazu w początkowym okresie eksploatacji.
Źródło:
Gospodarka Surowcami Mineralnymi; 2010, 26, 1; 93-104
0860-0953
Pojawia się w:
Gospodarka Surowcami Mineralnymi
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Multidisciplinary Approach to Characterize Triticale Elite Lines for Industrial Uses
Autorzy:
Cantale, Cristina
Belmonte, Alessandro
Correnti, Angelo
Farneti, Anna
Felici, Fabio
Gazza, Laura
Latini, Arianna
Nocente, Francesca
Micheli, Carla
Petrazzuolo, Francesco
Galeffi, Patrizia
Powiązania:
https://bibliotekanauki.pl/articles/2199690.pdf
Data publikacji:
2018-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
digestion
biomass
energy
methane
triticale
Opis:
Plant biomass and organic wastes from agriculture represent an effective resource to be exploited fora sustainable rural development, optimizing the land use, diversifying rural entrepreneurship, producing energyand new income.Among crops, triticale is considered particularly interesting, showing several advantages such as highgrain yield even in marginal environments, tolerance to drought, tolerance to more acid soils, lower productioncosts and lower susceptibility to biotic stresses.In the frame of a long collaboration with CIMMYT (International Maize and Wheat Improvement Center-MX), eight triticale elite lines from Mexico were grown in Italy using marginal lands. An Italian triticalevariety and a bread wheat line, specifically bred for bioenergy applications, were used for comparison. Overthree growing seasons, different agronomic evaluations were obtained harvesting at milk phase. In the thirdgrowing season, a set of parcels was harvested also at maturity, to evaluate grain yields and quality parametersfrom seeds.Milk phase biomass were properly dried and characterized following reference procedures, then used assubstrate for anaerobic digestion to produce biogas and methane in lab-scale experiments.Seeds from interesting lines were used to test different quality parameters including falling number inorder to evaluate the fermentation ability. RAPD technique by two different panels of primers was used togenotype a selection of lines.
Źródło:
Plant Breeding and Seed Science; 2018, 77; 79-92
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A smart review on the gas transportation model of coalbed methane gas based on the optimized pipeline network
Autorzy:
Talapatra, Akash
Inan Chowdhury, Abed
Ujjaman, Md. Shourov
Powiązania:
https://bibliotekanauki.pl/articles/95237.pdf
Data publikacji:
2019
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
coalbed methane
gas transportation
pipelines network
hydraulic calculation
layout optimization
metan z pokładów węgla
transport gazu
sieć rurociągów
obliczenia hydrauliczne
optymalizacja układu
Opis:
Coalbed methane is extracted from the adsorbed state in coal seams with lower pressure and production rate. In previous studies, researchers only focused on the methods that were developed for making a relationship between the underground production rate and surface flow rate without any type of optimization procedure. In this study, the main purpose is to do a review on finding out of surface layout plan to optimize the maximum gas flow rate by developing an improved pipeline network. The more the optimization of the layout plan for designing pipeline network, the lower the amount of investment need to provide. Here, a mathematical model is proposed for the gas transportation based on the hydraulic and thermodynamic calculations of the pipeline network. Not only that, but also the filtration mechanism of depressurization and desorption for the gas flow through pipe section are evaluated here. After that, the pressure drop and pipeline efficiency are explored to find out the best design of pipeline network from the observed results. Finally, based on this study, many uncertainties can be reduced associated with the installation of pipeline network for gas transportation.
Źródło:
Journal of Mechanical and Energy Engineering; 2019, 3, 2; 169-175
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Activity and stability of cobalt-manganese catalysts in the process of methane flameless combustion
Autorzy:
Rotko, Marek
Redko, Vladyslav
Zawadzki, Witold
Powiązania:
https://bibliotekanauki.pl/articles/2079905.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Methane flameless combustion
Cobalt-manganese catalyst
Complete methane oxidation
Opis:
Oxide cobalt-manganese catalysts with different contents of cobalt and manganese, as well as pure cobalt and manganese catalysts have been tested in the process of methane flameless combustion (complete catalytic oxidation). The X-ray diffraction and X-ray photoelectron spectroscopy results showed that cobalt-manganese catalysts mainly composed of the spinel phase of Co$\text{}_{3}$O$\text{}_{4}$, Mn$\text{}_{2}$CoO$\text{}_{4}$ and/orMnCo$\text{}_{2}$O$\text{}_{4}$. The highest initial activity was presented bythe cobalt-manganese catalyst withahigh cobalt content.However, after 50-hours stability test the highest activity was presented by the cobalt-manganese catalyst with Co and Mn content close to the equimolar value.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2019, 74, 2; 89-100
2083-358X
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Activity of monolithic Pd/Al2O3 catalysts in the combustion of mine ventilation air methane
Autorzy:
Kucharczyk, B.
Powiązania:
https://bibliotekanauki.pl/articles/779819.pdf
Data publikacji:
2011
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
katalityczne utlenianie metanu
katalizatory monolityczne
powietrze wentylacyjne kopalni
catalytic oxidation of methane
monolithic catalysts
mine ventilation air
Opis:
The activity of Pd/Al2O3 catalysts increases when Pd content is increased from 1% to 2%. Among these catalysts, 2%Pd/Al2O3 shows the highest methane combustion activity. In a reduced form, the catalyst displays a higher activity than in the oxidized form. 24-hour ageing at 600oC to 800oC lowers the catalytic activity of 2%Pd/Al2O3 due to Pd crystallite sintering. After 110-hour oxidation of 1% methane in air over 2%Pd/Al2O3, conversion decreases from 100% to 88%. Upon reduction with hydrogen (performed after 24-hour ageing at 700oC and 110-hour methane oxidation), the 2%Pd/Al2O3 catalyst regains its initial activity. The high activity of Pd catalysts renders them suitable for methane removal from coal mine ventilation air at high gas fl ow velocities and temperatures lower than 600oC.
Źródło:
Polish Journal of Chemical Technology; 2011, 13, 4; 57-62
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Advantages and Disadvantages of Using Methane from CNG in Motor Vehicles in Polish Conditions
Autorzy:
Górniak, A.
Midor, K.
Kaźmierczak, J.
Kaniak, W.
Powiązania:
https://bibliotekanauki.pl/articles/2065030.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
methane
CNG
alternative fuel
Opis:
The current problems related to air pollution in Europe, but also in Poland, are forcing the search for solutions aimed at significantly reducing the amount of solid particles harmful to humans in the air. Road transport is responsible for almost half of the pollution, as it releases nitrogen oxides into the air. In view of the above, the authors of the article want to turn attention toward methane as a fuel alternative traditional ones, pointing to the possibility of its use by Poland and presenting its advantages and disadvantages.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2018, 1, 1; 241--247
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Air Pollution Reduction and Environment Protection Using Methane Fuel for Turbocharged CI Engines
Autorzy:
Ghazal, O. H.
Powiązania:
https://bibliotekanauki.pl/articles/124055.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
air pollution
clean combustion
methane emissions
heavy-duty diesel engines
Opis:
The internal combustion engine is considered as one of the main sources for air pollution due to hydrocarbon fuel combustion. The increased land transport usage requires improvement of the engine efficiency and combustion process technology to reduce the engine emissions. A turbocharged engine and the gaseous fuel replacement are the green tools proposed by researchers to enhance fuel saving and emissions reduction. In this paper, both methods were investigated. The methane is a preferred gaseous fuel due to its lower carbon to hydrogen ratio, resulting in lesser HC and CO emissions. In this paper, a turbocharged compression ignition engine with methane/diesel dual fuel is simulated using professional GT-power code to investigate the effect of methane percentage in mixture on the engine performance and emissions. A turbocharged 6 cylinders compression ignition engine has been built and investigated. During the simulation, the methane/diesel ratios were varied from pure diesel with zero percent methane to 90% methane concentration by mass with 10% increment every run. The results show that the engine brake power and specific fuel consumption increased while the thermal efficiency decreased for lower CH4 concentration. For higher CH4 percentage, the brake power and thermal efficiency increased while specific fuel consumption decreased. Moreover, NO emission has 35% reduction compared to neat diesel fuel when 50% of methane was added to the mixture. Conversely, the CO and HC concentration increased when the methane ratio is less than 50% compared to neat diesel combustion. In general, the engine efficiency improved when methane was added to diesel fuel in compression ignition engine with turbocharger boost, resulting in lesser emissions and cleaner environment.
Źródło:
Journal of Ecological Engineering; 2018, 19, 5; 52-58
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ALOHA – modern tool for modeling the risks associated with the spread of volatile pollutants in extraction of hydrocarbons
Autorzy:
Kulynych, V.
Maruta, M.
Powiązania:
https://bibliotekanauki.pl/articles/299038.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
ALOHA
environmental monitoring
threat of hydrogen sulphide
methane
Opis:
During the drilling works or exploitation of hydrocarbons working devices such as high-performance engines of drilling equipment and machines are often the main sources of gaseous and particulate pollutants emitted into the atmosphere. At the time of an emergency, eg. gas leakage or eruption in a short time in the atmosphere can get high concentrations of gases such as methane and hydrogen sulphide. The Ordinance of the Minister of the environment dated 29 January 2013 determines the basic criterion for risk of H2S assessment in mining companies extracting oil or natural gas, where is possibility – during the eruption of open holes or wells-flow on the surface of the liquid containing hydrogen sulphide, posing a hazard to workers, the mining plant traffic and people staying close to driving traffic mining plant. The paper presents the modelling of the spread gases in the atmosphere during the “normal” operation on drilling rigs and the gas leakage from the damaged pipeline. Was also made an attempt to mark safe points of the evacuation out in the moment of the emergency incident.
Źródło:
AGH Drilling, Oil, Gas; 2016, 33, 2; 315-322
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alternative methodology to determine effective coefficient of methane diffusion in coal
Autorzy:
Koptoń, Henryk
Powiązania:
https://bibliotekanauki.pl/articles/1839042.pdf
Data publikacji:
2020
Wydawca:
Główny Instytut Górnictwa
Tematy:
mining
coal
sorption
diffusion
methane
diffusion coefficient
górnictwo
węgiel
sorpcja
dyfuzja
metan
współczynnik dyfuzji
Opis:
The article presents the results of research in to the development of an alternative method of determining the effective coefficient of methane diffusion in coal, based on a mathematical model following Fick's second law. The research was conducted based on the recorded courses of methane sorption kinetics in coal samples obtained in laboratory conditions with the precise gravimetric sorption system IGA-001. The value of the coefficient was treated as an element tuning the model in such a way that the average relative error of the ex post was as small as possible. Model verification indicated the correctness of its assumptions. The development of a more accurate methodology to determine the effective coefficient of methane diffusion in coal will enable the verification of the models applied in order to describe the physical and chemical mechanisms of the methane desorption natural phenomenon. It will also pave the way for further research aimed at the determination of: the gas bearing capacity of coal seams, the degree of degassing of seamswhich results from the mining operations being conducted; or to what extent it is possible to degas the deposits.
Źródło:
Journal of Sustainable Mining; 2020, 19, 2; 88-95
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alternatywne obniżenie emisji gazów cieplarnianych w cyklu życia bloku IGCC przez usuwanie dwutlenku węgla lub/i zagospodarowanie metanu w kopalni węgla kamiennego
Alternative decrease of greenhouse gas emissions in the life cycle of the IGCC through carbon dioxide removal or/and methane management in hard coal mines
Autorzy:
Czaplicka-Kolarz, K.
Śliwińska, A.
Świądrowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/340487.pdf
Data publikacji:
2012
Wydawca:
Główny Instytut Górnictwa
Tematy:
kopalnia węgla kamiennego
IGCC
gazy cieplarniane
wychwyt CO2
zagospodarowanie metanu
ochrona środowiska w górnictwie
hard coal mine
greenhouse gases
CO2 capture
methane management
environmental protection in mining
Opis:
W artykule przedstawiono analizę potencjalnych korzyści dla środowiska, jakie płyną z wykorzystania CH4 w kopalniach węgla kamiennego, w cyklu życia systemu: kopalnia - blok gazowo-parowy zintegrowany ze zgazowaniem węgla (ang. Integrated Gasification Combined Cycle - IGCC). Następnie wyniki porównano z możliwymi korzyściami osiągalnymi wskutek wychwytywania CO2. W perspektywie całego cyklu istnienia bloku gazowo-parowego zintegrowanego ze zgazowaniem węgla najważniejsze są następujące czynniki: emisja CO2, sprawność wytwarzania energii elektrycznej i wielkość zużycia węgla. Zastosowanie układu wychwytywania CO2 przyczynia się do zmniejszenia potencjału cieplarnianego w cyklu życia, a w konsekwencji do obniżenia jego sprawności. W rezultacie następuje wzrost oddziaływania na środowisko we wszystkich pozostałych kategoriach wpływu, szczególnie związanych z wyczerpywaniem się paliw kopalnych. Zagospodarowanie CH4 w kopalni, szczególnie z układów wentylacyjnych, może przyczynić się do poprawy oddziaływania systemów energetycznych na środowisko, chociaż w porównaniu do sekwestracji w znacznie mniejszym stopniu. W przeciwieństwie do sekwestracji, zagospodarowanie CH4 nie wpływa na zwiększenie oddziaływania w innych kategoriach. Mimo to może wiązać się z dodatkowymi korzyściami w postaci zysków ze sprzedaży produktów ubocznych omawianego procesu - energii elektrycznej i ciepła.
The article presents the analysis of potential advantages for the environment related to the use of CH4 in hard coal mines in the life cycle system: mine - Integrated Gasification Combined Cycle Plant - IGCC. Next the results were compared with the possible benefits accessible due to CO2 capture. In the perspective of the whole cycle of existence of the integrated gasification combined cycle block most important are the following factors: CO2 emissions, efficiency of electric energy generation and coal consumption quantity. The application of the CO2 capture system contributes to the decrease of the greenhouse potential in the life cycle and in consequence to the reduction of its efficiency. As a result follows the growth of impact on the environment in all remaining impact categories, particularly connected with fossil fuels exhaustion. CH4 management in the mine, especially from ventilation systems, can contribute to the improvement of impact of energy systems on the environment, though in comparison with sequestration to a considerably smaller extent. In contradiction to sequestration, CH4 management does not influence the increase of impact in other categories. In spite of this it can be connected with additional advantages in the form of profits from the sale of by-products of the discussed process - electric energy and heat.
Źródło:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa; 2012, 1; 17-34
1643-7608
Pojawia się w:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of coal and coal mine methane co-combustion in an 140 t/h pulverized coal boiler
Autorzy:
Jagodzińska, K.
Hernik, B.
Pronobis, M.
Powiązania:
https://bibliotekanauki.pl/articles/175356.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Co-combustion
methane
heat transfer
power boiler
Opis:
The paper presents an attempt to evaluate the impact of coal and coal mine methane cocombustion on the physics of the heat exchange in an 140 t/h pulverized-coal boiler through an analysis of 21 combinations of the boiler operating parameters – three different boiler loads (50, 75, and 100%) and seven values of the fired gas thermal contribution (0–60%). The obtained results are the temperature distribution of flue gas and steam in the boiler characteristic points, the heat transfer coefficient values for the boiler individual elements expressing the nature of changes in the heat transfer and the change in the boiler efficiency depending on how much gas is actually fired. An increase in the amount of co-fired gas involves a temperature increase along the flue gas path. This is the effect of the reduction in the amount of heat collected by the evaporator in the furnace. For these reason, the flue gas temperature at the furnace outlet rises by 9 K on average per a 0.1 increment in the fired gas thermal contribution. The temperature rise improves the heat transfer in the boiler heat exchangers – for the first- and the secondstage superheater the improvement totals 2.8% at a 10 pp. increase in the fired gas thermal contribution. However, the rise in the flue gas temperature at the boiler outlet involves a drop in the boiler efficiency (by 0.13 pp. for a rise in the fired gas thermal contribution by 0.1).
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2017, 137; 3-18
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An influence of methane/hydrogen proportion in fuel blend on efficiency of conversion energy in SI engine
Autorzy:
Flekiewicz, M.
Kubica, G.
Powiązania:
https://bibliotekanauki.pl/articles/246510.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
methane/hydrogen blend
low-carbon fuel
total efficiency
SI engine
Opis:
The relations between methane/hydrogen proportions in fuel blend are presented in this paper. The research cycle carried out contains results of dynamometer chassis tests complemented with mathematical model calculations. An object of X16SZR engine installed in Opel Astra I was investigation. The engine has been equipped with additional CNG feeding system where fuel is being injected into intake manifold under low pressure. 8 fuel blends were tested with variable methane/hydrogen volume proportion (%): 100/0, 95/5, 90/10, 85/15, 80/20, 70/30, 60/40 and 50/50. The feeding and ignition systems were controlled by nominal drivers. In every measuring series engine was tested in the following steady states: on idle, high speed without load and full power at discrete variable speed in range 1500…3500 rpm. The main aspect of the analysis was to identify the influence of hydrogen share on engine parameters such power, fuel consumption, in-cylinder pressure, temperature and exhaust gas composition. Very significant ecological fact possibility of CO2 emission reduction has been identified. Result of increasing content of hydrogen in fuel mixture is engine knocking. Analysis carried out on the basis of results allowed it to the point on methane/hydrogen proportion in fuel blend considering a total efficiency, emission and heat flux in parts of combustion chamber in engine.
Źródło:
Journal of KONES; 2012, 19, 3; 117-124
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An overview of coal bed methane potential in Polish coal basins
Autorzy:
Cieślak, K.
Hendel, J.
Kuczyński, S.
Powiązania:
https://bibliotekanauki.pl/articles/299024.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Lower Silesian Coal Basin (LSCB)
Lubin Coal Basin (LCB)
RECOPOL
Upper Silesia Coal Basin (USCB)
coal bed methane (CBM)
Opis:
Coal bed methane (CBM) may become an important source of energy in Upper Silesian Coal Basin. Coal bed methane in Poland occurs within three coal basins of which the best recognized and most promising is the Upper Silesian Coal Basin. Approximately 80.1% of proved balance of coal deposits resources in Poland occurs in the Upper Silesian Coal Basin, where 50 fields are operated by 28 mines. Thus, since early 90s of the 20th century the USCB is attractive for foreign companies which perform evaluation of coal bed methane obtaining possibility as main fossil. However, all previous attempts to commercial production of CBM did not bring expected results, but they constitute extensive information database for current and future research towards CBM exploitation. Prognostic resources of coal bed methane in USCB are estimated to 107 bln m3. Recoverable balance resources are estimated to 87.6 bln m3. Much smaller perspectives are related to the poorly identified regions of Lublin Coal Basin and Lower Silesian Coal Basin. It is estimated that balance resources of hard coal in LCB, represents approximately 19.2% of Polish hard coal balance resources.
Źródło:
AGH Drilling, Oil, Gas; 2013, 30, 4; 433-441
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anaerobic Co-Digestion of Domestic Sewage Sludge with Food Waste: Incorporating Food Waste as a Co-Substrate Under Semi-Continuous Operation
Autorzy:
Aljbour, Salah H.
Al-Hamaiedeh, Husam
El-Hasan, Tayel
Hayek, Bassam O.
Abu-Samhadaneh, Khalid
Al-Momany, Salam
Aburawaa, Ayman
Powiązania:
https://bibliotekanauki.pl/articles/1955419.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biogas
co-digestion
sludge
food waste
semi-continuous operation
methane
Opis:
Anaerobic co-digestion of domestic sewage sludge with food waste as a substrate for biogas production and as a mean for waste management was conducted. The food waste was incorporated into the bioreactor as a cosubstrate semi-continuously via replacement mode and addition mode of operations in ratios up to 50%. The methane gas yield under the replacement mode of operation ranged from 295 to 1358 ml/gVSadded and from 192 to 462 ml/gVSadded for the replacement mode of operation and the addition mode of operation, respectively. The results indicate that the methane gas yield increases along with the percentage share of food waste in the feed. Anaerobic co-digestion under semi-continuous operation enabled handling large organic loadings compared to batch co-digestion processes.
Źródło:
Journal of Ecological Engineering; 2021, 22, 7; 1-10
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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