Browsing by Issue Date, starting with "2005"

Now showing 1 - 20 of 548

Access status: Open Access ,
Wyznaczanie położenia konturów złożowych dla złóż ropy naftowej i gazu ziemnego w oparciu o kryteria hydrodynamiczne
(2005) Wojna-Dyląg, Elżbieta; Zawisza, Ludwik
The size and shape of a hydrocarbon field are determined by geological boundaries of strata and surface of the contour. The location of contours depends on the flow of formation waters, reservoir properties of rocks and properties of reservoir fluids. The mapping method of hydrodynamic hydrocarbon traps presented in this paper to determine the site of the field contour and so the deposit boundaries for oil and natural gas. To define the field contours it is necessary to work out a structural map of water-oil-bearing horizon, potentiometric map for reservoir water, map of specific gravity for reservoir water, map of specific gravity of oil in reservoir conditions, map of porosity, map of permeability and map of capillary pressures. Then the methodics presented in the paper should be applied. The procedure lies in performing some simple algebraic operations on maps. The realization of the discussed methodics is presented on the example of the oil field Czerwieńsk, in the Main Dolomite strata in the Fore-Sudetic area.
Access status: Open Access ,
Active control of vibrations of a three-axis gyroscopic platform on board of a flying object
(Wydawnictwa AGH, 2005) Koruba, Zbigniew; Styczeń, Jerzy
The work presents an algorithm for active control of vibrations of a three-axis gyroscopic platform during pre-programmed and stabilised operation on board of a flying object. The considerations focus on disturbances resulting from the flying object manoeuvres and short-duration pulses of external forces under the conditions of friction in the bearings and non-linear platform operation range.
Access status: Open Access ,
Iniekcyjne wzmacnianie górotworu podczas przebudów wyrobisk korytarzowych jako sposób zapobiegania obwałom skał i skutkom tych obwałów
(Wydawnictwa AGH, 2005) Rembielak, Tadeusz; Mielniczuk, Lech; Rosikowski, Janusz; Rusinek, Józef; Wala, Franciszek
The occurring mineral water in KWK »Piast« cause a corrosion of the excavations lining. Because of that it is necessary to rebuild these dog headings. In order to increase safety during rebuilding crossing of excavations there were applied forthcoming injectory firming of the rock mass in its surrounding, which prevents from occurring the fall of rocks and from the results of these fallings. In the paper there was presented an example of crossing rebuilding technology from a lining LP to the crossing of the POLYTRAB type in the Heintzmann Company in KWK »Piast«.
Access status: Open Access ,
Charakterystyki łuku plazmotronów spektrometrycznych
(2005) Sawicki, Antoni; Kruczinin, Anatolij Michajłowicz
W artykule sformułowano warunki brzegowe modelu łuku w plazmotronie spektrometrycznym bez wymuszonego przepływu gazu. Podano sposób przeliczania charakterystyk eksperymentalnych na warunki pracy plazmotronu z różnymi gazami plazmotwórczymi. Przedstawiono obliczone charakterystyki elektryczne i cieplne części cylindrycznej i stożkowej łuku ściśniętego zimnymi ściankami.
Access status: Open Access ,
Wpływ zanieczyszczenia gleby różnymi związkami rtęci na aktywność mikrobiologiczną gleby
(Wydawnictwa AGH, 2005) Florencka, Natalia; Chmiel, Maria
Presented paper concern studies on influence of soil contamination by mercury compounds $(HgCt_{2}$ $HgO$, $Hg(NO_{3})_{2})$ in five different doses (0,1. 0,5. 1,0. 5,0. 10,0 mg/kg) on number of vegetative and resting stages of mesophilic bacteria, Azotobacter genus, the number of Actinomycetes and microfungi. The results of laboratory investigations displayed the mean reduction of vegetative stages of mesophilic bacteria on sites with mercury oxide $(HgO)$ already in lowest dose - 0,1 mg/kg and the Actinomycetes number on sites with doses over 0,5 mg/kg $Hg(NO_{3})_{2}$. $HgCl_{2}$ (corrosive sublimate) was the most toxic compound to Azotobacter sp. Filamentous fungi were the most resistant group of soil microorganisms.
Access status: Open Access ,
Bezpieczeństwo pożarowe w tunelach
(Wydawnictwa AGH, 2005) Chojnacki, Krystian; Fabryczewska, Agnieszka
Nowadays tunnels and underground transports facilities are important means of communications, not only because of shorter journeys, but also increasingly out of consideration for the local population and the environment, as well as the local economy and industry. However fires in tunnels are a major hazard to human life and cause costly damage to the infrastructure. He limited escape facilities and the difficulties encountered the intervention forces in gaining access, call for extensive safety arrangements which must be complementary and mutually coordinated.
Access status: Open Access ,
Wpływ sposobu wyznaczenia poprawki kalibracyjnej na określane przewyższenie
(Wydawnictwa AGH, 2005) Frukacz, Mariusz
In this paper, the author presents the methods of determination of a calibrating correction of the precise leveling results. The purpose of the statistical experiment which was carried out, was to generate randomly the results of levelling as well as determine the calibrating corrections in four ways. It was observed that different ways of calculating this correction may cause the occurrence of systematical errors. The values of other corrections, for example correction for refraction, in this experiment was calculated for comparison.
Access status: Open Access ,
Projektowanie parametrów wentylacji lutniowej w drążonych wyrobiskach podziemnych z wykorzystaniem programu komputerowego AGHWEN-3.0
(Wydawnictwa AGH, 2005) Szlązak, Nikodem; Obracaj, Dariusz; Szlązak, Łukasz
The principles of designing duct ventilation system and calculation of air distribution along underground headings fitted with leaky ductlines using AGHWEN-3.0 computer programme are presented in the paper. The algorithm of the calculation takes into consideration methane emission into a heading and both the air temperature and humidity distribution along a heading. It takes into consideration the cooperation between ventilation system, dust collection system and air cooling system. On the basis of a few examples the possibilities of AGHWEN-3.0 used in designing a ventilation system are presented.
Access status: Open Access ,
Emisja zanieczyszczeń z procesu grafityzacji elektrod węglowych w piecach LWG (Castnera). Część 1. Wybrane substancje gazowe
(Wydawnictwa AGH, 2005) Mazur, Marian ; Oleniacz, Robert ; Bogacki, Marek ; Szczygłowski, Przemysław
In the paper the results of measurements of quantity pollutants originated and emitted to air from resistor stoves of type LWG (Castner) were introduced. The investigation was carried out during graphite process of coal electrodes, until moment of end of ventilation the stove across applied installations of cleaning of cool gases (catalytic burning and the wet desulphurization). The measurement results of $CO$, $CO_{2}$, $HC+H_{2}$, $SO_{2}$, $H_{2}S$, $CS_{2}$, $NO$, $NO_{2}$, $NH_{3}$ as well as chosen hydrocarbons $(C_{1}-C_{6})$ and aromatic hydrocarbons (BTX) were presented. In result of conducted investigations was qualified courses of changeability of concentrations in gases these substances before and for the cleaning system. The effectiveness of the substance removing from exhaust gases was estimated as well as range of occurrence of their maximum release. The additional investigations of catalytic burning showed, that this process causes the formation of the additional quantities of benzene.
Access status: Open Access ,
Zastosowanie algorytmów interpolacji i sztucznych sieci neuronowych do wyznaczania charakterystyki zawartości chromu w glebach
(Wydawnictwa AGH, 2005) Gruszczyński, Stanisław ; Urbański, Krzysztof
Various ways of approach, to determine the horizontal distribution trend (tendency) of Chromium (Cr) in soil, where is high pollution by this element are analysed. Polynominal regression algorithms (I, II, III degree polynominals), interpolation algorithms (TIN, Kriging, RST), and also artificial neural networks (MLP, CANFIS, RBF, GRNN, PNN, MDN) are applied. Data from field experiments, carried out in the area of Chemical Plant in Alwernia were used. The differences between several ways of approach are presented in a graphical form, and also in some remainders distribution statistics. The soil pollution spatial distribution examinations lead to following conclusion, that in the first place is the information precision determination, and also the limit of error, through the pollution evaluation acceptance, whereas in the second place is the indication or standing out the regularity connected with the imission effect mechanism. It seems that the chromium concentration in soils variation, noticed even on short distances, makes it difficult the acceptance of interpolation method, as a method of contamination distribution evaluation. On the other hand the considerable nonlinearity makes difficult the acceptance of regression model. In these circumstances, the possibility which is worth consideration, is the modelling with the application of neuron networks, that is also hybrid solution application (for instance MDN), which gives the possibility of Cr concentration in soils variation deeper analysis.
Access status: Open Access ,
Modern technologies of heat production as an opportunity for coal
(Wydawnictwa AGH, 2005) Kurczabiński, Leon; Łój, Roman
Coal Holding Katowice produces best quality typical steam coal. For several years it has cooperated with manufacturers of modern coal boilers for whom it provides coal of appropriate granulation. This article presents a description of modern heat production technologies based on coal and designed for small and medium-size users. These technologies allow the cheapest heat production while the standing standards of toxic substances' emission are complied with. The article describes the directions of actions undertaken by Coal Holding Katowice to promote efficient and ecological high quality coal combustion technology, which give coal an opportunity to maintain its position in the market, as prices of other energy carriers are high.
Access status: Open Access ,
Norma PN-EN 2006-1 - nowy wymiar jakości betonu
(Wydawnictwa AGH, 2005) Kohutek, Zdzisław B.
Over one year ago in Poland the European Norm: PN-EN 206-1 was officially given priority in relation to previous national standards. Polish old regulation, which were hitherto obligatory, have been derogated. The European Standard for concrete, along with related documents specify so far known notions in the field of technics of concrete, also introducing many other definitions. The Standard arrange and classify both parameters of material itself, its properties and exposures of concrete related to environmental actions. It admits the substitution of part of cement (CEM I and CEM II/A) by fly ash and silica fume equivalent. The Standard in question render a modern workshop of the production control and conformity control accessible to producer. The objective of the European Norm is to guarantee durability of concrete construction and to ensure its other, desirable properties to investor or to user. Principal sections of the PN-EN 206-1 document have been discussed in this article. Those sections include: systematics of concrete and of its exposure applications, questions concerning selection of concrete components and of concrete composition, specification criteria, issue of delivery of fresh concrete and method of production evaluation and of material quality evaluation.
Access status: Open Access ,
Dokumentacja rozgraniczenia nieruchomości w procesie ustalania stanu prawnego gruntu
(Wydawnictwa AGH, 2005) Kwartnik-Pruc, Anita
The paper presents an analysis of geodetic-legal regulations connected with the delimitation of a real estate, in the light of documentation arising in this process. This documentation is included in the national geodetic and cartographical resources, which are the basics of title boundary reestablishment. The paper deals with present legal bases, since 1946, of the proceedings of ground real estate delimitation, composition of documentation, arising from this process, and changes with the administration responsible for this delimitation.
Access status: Open Access ,
Zastosowanie równania bilansu do wybranych zjawisk fizycznych zachodzących w wyrobiskach górniczych
(Wydawnictwa AGH, 2005) Mikołajczyk, Władysław; Filek, Krzysztof
In this article the general balance equation has been shown for analysing physical items. After having these physical items interpreted, it is possible to receive equation for such processes like: heat conduction, filtration or gas diffusion. Those processes take place in issues of mining ventilation, in that case there has been placed some examples of other calculations of processes which can appear in case of heading in a mine.
Access status: Open Access ,
Analiza stateczności ścianki szczelnej z zastosowaniem metody różnic skończonych
(Wydawnictwa AGH, 2005) Cała, Marek; Flisiak, Jerzy
This paper deals with designing and stability analysis of sheet pile walls (SPW). SPW are commonly used for stabilizing walls of trenches. Classical limit state methods are usually applied to design simple constructions. Application of simple design schemes may lead to several mistakes. According to Eurocode 7-1, numerical methods (NM) are among four main design methods of design. For to demonstrate possibilities of numerical methods application, several examples of SPW stability analysis were performed, utilizing Finite Difference Method code FLAC v. 5.0. Comparing NM with limit state methods, it must be underlined, that application of numerical methods has one serious limitation. NM may be used only to analyze initially designed construction. Straight use of NM as a design tool may be quite difficult, but not impossible. However NM suits perfectly for verification and correction of results obtained from limit state methods. Five different models of anchored SPW were considered. Several conclusions regarding number of anchors, bending moments distribution and global construction stability were formulated.
Access status: Open Access ,
Problemy tworzenia międzynarodowych łańcuchów logistycznych przy zastosowaniu systemów informatycznych i sieci komputerowych
(Wydawnictwa AGH, 2005) Szymonik, Andrzej
The article shows present problems related to creation of international logistic nets with usage of computer systems. It also draws attention to computer system integration of value according to a proper flow of data and steering signals.
Access status: Restricted ,
Fundamentowanie
(Oficyna Wydawnicza Politechniki Warszawskiej, 2005) Grabowski, Zbigniew; Pisarczyk, Stanisław; Obrycki, Marek
Access status: Open Access ,
Badania korozyjności cieczy nadpakerowych na bazie chlorku sodu w warunkach dopływu siarkowodoru
(2005) Bielewicz, Danuta; Wysocka, Marta; Wysocki, Sławomir
The authors present the results of experiments oriented to determining the corrosiveness of over-packer $Na-Cl$-based fluids, saturated with hydrogen sulfide, in the area of the BMB field, as well as the selection of the most efficient corrosion inhibitor. The experiments concentrated on the measurement of $H_{2}S$, pH and corrosiveness of over-packer fluids saturated with hydrogen sulfide at temperature 60 and 80 Celsius degrees. The experiments were conducted for two types of solutions: $NaCl$ and $NaCl+CMC LV$, with the initial pH mpos 10 and 12. Analogous experiments were performed for the above fluids after adding three corrosion inhibitors. The analysis of the results showed that the lowest corrosiveness in the hydrogen sulfide conditions at a temperature of 80 Celsius degrees was obtained for the $NaCl$-based fluid with CMC LV and admixture of the corrosion inhibitor ANTYKOR PP with the initial pH = 12.
Access status: Open Access ,
Źródła dwutlenku węgla w Polsce dla zaawansowanych technik wydobycia ropy naftowej
(2005) Tarkowski, Radosław; Uliasz-Misiak, Barbara
The article presents possibilities of gaining CO2 from large point sources of emission in Poland for enhanced oil recovery by underground injection of this gas. This technology has been used for decades, especially in the USA, where natural and anthropogenic gas is used. In Poland due to little reserves and natural gas production, anthropogenic CO2 for EOR process could be used. The biggest CO2 emitters are presented (above 500 Gg/year), basic technological process which produce the gas, industrial plants locations, concentration of carbon dioxide in flue/industrial gases are characterized. Economical and environmental aspects of using CO2 for EOR are underlined. Location of the biggest CO2 emitters was defined in connection with hydrocarbon reservoirs location which have various sizes and stags of exploitation.
Access status: Open Access ,
Zanieczyszczenie środowiska gruntowo-wodnego wielopierścieniowymi węglowodorami aromatycznymi w rejonie rafinerii
(Wydawnictwa AGH, 2005) Macuda, Jan; Solecki, Tadeusz
Oil refineries belong to industrial plants frequently polluting the ground-water environment with a variety of hydrocarbons. Ground and water contamination may be caused by leakages in the production installments and also during oil and oil-products storing. One of the most toxic ones are polycyclic aromatic hydrocarbons, produced in considerable quantities in the course of oil and crude oils processing. The quantitative state of the ground-water environment with respect to the polycyclic aromatics near one of the Polish oil refineries has been analyzed in this paper. Basing on the comparison of geochemical and hydrochemical results with threshold environmental standards, a conclusion was drawn that both grounds and underground waters are contaminated with polycyclic aromatics above the admissible values, qualifying them for remediation procedures to be applied.