Temat: gas leakage - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Localization of fugitive methane emission from natural gas distribution network of Titas Gas
Autorzy:: Mandal, P. C.
Morshed, S. M.
Powiązania:: https://bibliotekanauki.pl/articles/778196.pdf
Data publikacji:: 2017
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: fugitive emission
methane release
gas leakage
leak constant
climate mitigation
Opis:: The aim of this paper is to localize the fugitive leaks from the above ground facilities of the existing system of Titas Gas (TG) after developing mathematical model for fugitive emission. Soap screening techniques and Gasurveyor 500 series instrument were used in this study for detecting potential leaks. Leaked gas was quantified using either Hi-Flow gas sampler or bagging measurements system. The results show that the respective potential gas leaking point of City Gate Station (CGS), commercial Regulating and Metering Station (RMS), industrial RMS, residential RMS and Town Bordering Station (TBS)/ District Regulating Station (DRS) are scrubber dump valve (average leak rate 217.00 L/min), insulating point (average leak rate 4.04 L/min), tube fitting connector (average leak rate 8.00 L/min), connector (average leak rate 1.55 L/min) and pressure relief valve (average leak rate 437.92 L/min). Fugitive methane emission can be reduced by stopping leaks of fittings or components having high K_Leak value.
Źródło:: Polish Journal of Chemical Technology; 2017, 19, 1; 127-131
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: An experimental study of emission and combustion characteristics of marine diesel engine in case of cylinder Valves leakage
Autorzy:: Kowalski, J.
Powiązania:: https://bibliotekanauki.pl/articles/259195.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: marine diesel engine
exhaust gas composition
emission
exhaust gas valve leakage
inlet valve leakage
Opis:: Presented paper shows the results of the laboratory tests on the relationship between throttling of both air intake duct and exhaust gas duct and a gaseous emission from the marine engine. The object of research is a laboratory, four-stroke, DI diesel engine, operated at loads from 50 kW to 250 kW at a constant speed equal to 750 rpm. During the laboratory tests over 50 parameters of the engine were measured with its technical condition recognized as a „working properly” and with simulated leakage of both air intake valve and exhaust gas valve on the second cylinder. The results of this laboratory research confirm that the leakage of cylinder valves causes no significant changes of the thermodynamic parameters of the engine. Simulated leakages through the inlet and exhaust valve caused a significant increase in fuel consumption of the engine. Valve leakages cause an increase of the exhaust gas temperature behind the cylinder with leakage and behind other cylinders. The exhaust gas temperature increase is relatively small and clearly visible only at low loads of the engine. The increase of the temperature and pressure of the charging air behind the intercooler were observed too. Charging air temperature is significantly higher during the engine operation with inlet valve leakage. The study results show significant increases of the CO, NOx and CO2 emission for all the mentioned malfunctions. The conclusion is that the results of measurements of the composition of the exhaust gas may contain valuable diagnostic information about the technical condition of the air intake duct and the exhaust gas duct of the marine engine.
Źródło:: Polish Maritime Research; 2015, 3; 90-98
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Geochemical analysis and preparation the well abandonment projects on the Polana Ostre field
Autorzy:: Piotrowska, N.
Tępka, P.
Talar, D.
Powiązania:: https://bibliotekanauki.pl/articles/298781.pdf
Data publikacji:: 2013
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: Polana Ostre
hydrocarbons
surface geochemical survey
gas and oil leakage
liquidations
Opis:: This article covers the methodology of geochemical analysis, interpretation of results and solution that was proposed to abandon a depleted oil reservoir Polana Ostre, Poland. Polana Ostre as a reservoir was discovered in the 19th century and in 1870 the main facilities were built. Several dozens of wells were drilled and their depth varies between 60–497 m. Furthermore, on the field many hand‑drilled wells are located. Oil was produced through the 60 years with breaks. After the 2nd World War the facility was suddenly discarded due to political and economic reasons. As a result of inadequate operation, oil leakages can be observed. It causes an environmental pollution and a serious hazard. The remains were recognized and documented. A series of geochemical measurements were taken to indicate gas concentrations throughout the field. An analysis of the results showed significant concentrations of hydrocarbons in the soil. In order to mitigate the threat, a proper plug and abandonment operation of the deepest well was designed. Project executors hope to attract the attention of industry and academia to the problems depleted reservoirs that were not correctly abandoned.
Źródło:: AGH Drilling, Oil, Gas; 2013, 30, 4; 449-458
2299-4157
2300-7052
Pojawia się w:: AGH Drilling, Oil, Gas
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Przegląd metod wykrywania nieszczelności sieci gazowych
An overview of methods for detecting gas network leaks
Autorzy:: Holewa-Rataj, J.
Kukulska-Zając, E.
Powiązania:: https://bibliotekanauki.pl/articles/1835320.pdf
Data publikacji:: 2017
Wydawca:: Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:: gazociągi
sieci gazowe
wykrywanie nieszczelności
gas pipelines
gas networks
leakage detection
Opis:: Wycieki gazu ziemnego z sieci przesyłowej i dystrybucyjnej są poważnym zagrożeniem dla środowiska ze względu na emisję metanu do atmosfery. Niniejszy artykuł stanowi przegląd dostępnych i stosowanych metod wykrywania nieszczelności gazociągów. Opisano w nim metody techniczne, nietechniczne oraz obliczeniowe, szczególnie zwracając uwagę na możliwość wykorzystania tych metod podczas prowadzenia pomiarów wielkości emisji metanu.
Gas leaks from natural gas transmission and distribution networks are a serious threat to the environment due to the emission of methane into the atmosphere. This article reviews the available and used gas leak detection methods. It also describes the available technical, non-technical and calculation methods including the possible use of these methods when conducting measurements of methane emissions.
Źródło:: Nafta-Gaz; 2017, 73, 11; 871-877
0867-8871
Pojawia się w:: Nafta-Gaz
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Liquefied Natural Gas – The Future Fuel for Shipping or Cul-de-sac
Autorzy:: Herdzik, Jerzy
Powiązania:: https://bibliotekanauki.pl/articles/2174912.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: fuel
shipping
liquefied natural gas
marine fuel
future
fuel leakage
greenhouse effect
atmosphere contamination
Opis:: The paper analyses the reasons for the interest in natural gas as a potential marine fuel to replace the existing fuels derived from crude oil. The increase in environmental awareness and the effects of human activity caused the process of searching for more environmentally friendly fuels. Naturally, interest has been shifted to a well-known energy source commonly found on Earth in quantities much more considerable than crude oil. This fuel, in the form of liquefied natural gas, seems to be an attractive substitute for the currently dominant types of marine fuels. The technologies of its extraction, liquefaction, storage and transport were mastered, and marine engines were adopted for its combustion as dual-fuel engines. The regulations introduced by the International Maritime Organization and the European Parliament, forcing the reduction of emissions of harmful substances into the atmosphere from the combustion of marine fuels, require taking action to meet them. The proposals for individual next 30 years are given. Due to the introduction of regulations to reduce carbon dioxide emissions, it is necessary to switch to fuels with a lower or zero carbon content or biofuels recognised as more environmentally friendly. Due to only 25% lower carbon content in methane with its higher lower heating value, it is possible to reduce the direct emission from this gas by about 30%. However, methane leaks occur in the processes from natural gas extraction to the energy effect in engines as a fuel, significantly worsening its image as an ecological fuel. Researches indicate that with current technologies, natural gas should not be recognised as an ecological fuel until gas leaks are significantly reduced. The article justifies why LNG should be considered a transient marine fuel, with the need to switch to other synthetic fuels, ammonia, and hydrogen.
Źródło:: Rocznik Ochrona Środowiska; 2022, 24; 15--25
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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