Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Wpływ zmienności składu na właściwości skroplonego gazu ziemnego w aspekcie stabilności procesu magazynowania

100%

Łaciak M. , Oliinyk A. , Sikora A. P. , Włodek T.

tom T. 97, nr 2

267--271

Modelowano właściwości skroplonego gazu ziemnego w zależności od jego składu w celu prognozowania jego zachowania się po wzroście temperatury w zbiornikach magazynowych oraz w trakcie ich napełniania. Opisano zjawisko roll-over zachodzące w czasie magazynowania gazu i polegające na rozwarstwianiu się cieczy o różnych gęstościach.

Properties of liquefied natural gas were modeled according to its compn. to predict its behavior after temp. increase in the storage tanks and during their filling. A roll-over effect during the liquefied natural gas storage consisted in stratification of liqs. of different densities was described.

An analysis of the changes of the composition of natural gas transported in high-pressure gas pipelines

88%

Janusz P. , Liszka K. , Łaciak M. , Oliinyk A. , Susak A.

tom Vol. 32, no. 4

713--722

Natural gas is one of the major fuels covering home demand for energy. Natural gas consumption has been observed to systematically increase over the last five years. Intensive works are conducted on the development of the national gas network leading to the diversifi cation of directions and sources of blue gas. Natural gas consists of various components. Its composition depends on the source of origin and has a decisive influence on thermodynamic and hydraulic properties. The content of heavy hydrocarbon gases increases the calorific value of the gaseous fuel, whereas the high content of inorganic components lowers the amount of energy obtained in the course of natural gas combustion, and environmentally hazardous chemical compounds are formed. As far as gas transport is concerned, too high content of heavy hydrocarbon gases (propane, butane, pentane) is disadvantageous. In high pressure conditions the C3-C5 class gases change to a liquid phase. This results in the change of the calorific value, lower hydraulic efficiency of the pipeline diameter and potentially faster corrosion processes on the inner surface of the pipeline.This paper is aimed at presenting results of changes of natural gas composition in a function of distance at which the fuel is transported. The respective analyses will be conducted with the use of analytical methods and commercial pipeline simulators.