Method for calculation of flow distribution in a gas transport system

1992 ◽  
Vol 60 (1) ◽  
pp. 1322-1325
Author(s):  
N. Yu. Medvedeva ◽  
V. A. Shaldyrvan
Keyword(s):  
Transport System ◽  
Gas Transport ◽  
Flow Distribution

Study on a gas transport system based on thermal induced flow

2016 ◽  
Author(s):  
Hiroaki Matsumoto ◽  
Kai Mihara ◽  
Daigo Yamagishi ◽  
Takayuki Morokuma
Keyword(s):  
Transport System ◽  
Gas Transport ◽  
Induced Flow

scholarly journals The dynamic simulation of the natural gas transportation

2013 ◽  
Vol 24 (2) ◽  
pp. 83-97 ◽  
Author(s):  
Cristian Eparu ◽  
Renata Rădulescu ◽  
Doru Stoica
Keyword(s):  
Natural Gas ◽  
Dynamic Simulation ◽  
Transport System ◽  
Gas Transport ◽  
Transportation Network ◽  
Whole Process ◽  
Gas Consumption ◽  
Natural Gas Consumption

AbstractThe natural gas consumption of the operators connected to the gas transport system depends on the gas needs. As gas needs vary in time, the whole process of gas transportation is, therefore, nonstationary. The paper presents nonstationary simulations for a gas transportation network and highlights the parameters values (flows, pressures) that are necessary to assure the safety of the system.

Growth of gallium arsenide in a GaAs-AsCl3-H2 gas-transport system. 2. Growth mechanism

1977 ◽  
Vol 20 (12) ◽  
pp. 1551-1555
Author(s):  
L. G. Lavrent'eva ◽  
I. V. Ivonin ◽  
L. P. Porokhovnichenko
Keyword(s):  
Gallium Arsenide ◽  
Transport System ◽  
Growth Mechanism ◽  
Gas Transport ◽  
System 2

scholarly journals Retrofitting a 100,000 HP Simple Cycle Gas Turbine Compressor Station With Regenerators

1983 ◽  
Author(s):  
Arjo Klyn ◽  
Hans Wylens
Keyword(s):  
Gas Turbine ◽  
Transport System ◽  
Gas Turbines ◽  
Gas Transport ◽  
Peak Load ◽  
Simple Cycle ◽  
Compressor Station ◽  
Compressor Unit ◽  
Gas Turbine Compressor ◽  
Base Load

In its gas transport system N.V. Nederlandse Gasunie found a shift from peak load to base load at stations which were not originally designed for that duty. A study was made of the application of recuperators on GE frame 5 gas turbines, based on experience with a prototype installation four years ago. The paper describes the Breda-regenerator in general and the experience of one of the two prototypes which was installed on a Gasunie frame 5 two shaft 24 mW gas turbine compressor unit in 1978. In June 1981 Gasunie decided to equip two more identical gas turbine compressor units at their 100,000 HP compressor station at Zweekhorst with Breda-regenerators. The paper covers all aspects of retrofitting the simple cycle gas turbine installations with regenerators at the Zweekhorst station.

scholarly journals Forecasting rational working modes of long-operated gas-transport systems under conditions of their incomplete loading

2021 ◽  
Vol 4 (8(112)) ◽  
pp. 6-15
Author(s):  
Volodymyr Grudz ◽  
Yaroslav Grudz ◽  
Myroslav Iakymiv ◽  
Mykola Iakymiv ◽  
Pavlo Iagoda
Keyword(s):  
Mathematical Modeling ◽  
Energy Consumption ◽  
Transport System ◽  
Gas Transport ◽  
Pressure Fluctuations ◽  
Initial Pressure ◽  
High Amplitude ◽  
Nonstationary Process ◽  
Optimality Criteria ◽  
Transport Systems

Prolonged operation of the gas-transport system in conditions of partial loading involves frequent changes in the volume of gas transportation, which necessitates prompt forecasting of system operation. When forecasting the modes of operation of the gas transport system, the main criterion of optimality implies the maximum volume of gas pumping. After all, in this case, the largest profit of the gas-transport company is achieved under the condition of full provision of consumers with energy. In conditions of incomplete loading of the gas-transport system caused by a shortage of gas supply, optimality criteria change significantly. First, the equipment is operated in ranges far from nominal ones which leads to growth of energy consumption. Secondly, changes in performance cause high-amplitude pressure fluctuations at the outlet of compressor stations. Based on mathematical modeling of nonstationary processes, amplitude and frequency of pressure fluctuations at the outlet of compressor stations which can cause the pipeline overload have been established. To prevent this, it was proposed to reduce initial pressure relative to the maximum one. Calculated dependence was obtained which connects the amplitude of pressure fluctuations with the characteristics of the gas pipeline and the nonstationary process. Reduction in energy consumption for transportation is due to the shutdown of individual compressor stations (CS). Mathematical modeling has made it possible to establish regularities of reduction of productivity of the gas-transport system and duration of the nonstationary process depending on the location of the compressor station on the route. With an increase in the number of shutdown compression stations, the degree of productivity decrease and duration of nonstationarity reduces The established patterns and proposed solutions will improve the reliability of a gas-transport system by preventing pipeline overload and reduce the cost of gas transportation by selecting running numbers of shutdown stations with a known decrease in productivity.

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