نتایج جستجو برای: high pressure pipelines
تعداد نتایج: 2356155 فیلتر نتایج به سال:
Accurate prediction of the burst pressure is essential for structural integrity assessment pipelines. Current design codes and models residual pipelines with surface corrosion defects are only applicable to axially orientated defects. Theoretical empirical thin-walled pipes pre-existing localised arbitrarily oriented defect proposed. The theoretical model based on power-law hardening J2 flow th...
Leak detection in transmission pipelines is important for safe operation of pipelines. The probability of leaks may be occurred at any time and location, therefore pipeline leak detection systems play a key role in minimization of the occurrence of leaks probability and their impacts. Today there are many available assortments of modern technologies in the domain of leak detection. This paper p...
High performance processors based on pipeline processing play an important role in scientific and engineering computation. However, it is difficult to gain a satisfactory solution when taking both high degree of flexibility of parallel processing and low hardware complexity into account. This paper propose a hybrid pipeline architecture named Jetpipeline that possesses high degree of flexibilit...
Buried pipeline systems are commonly used to transport water, sewage, oil, natural gas and other materials. In the conterminous United States, there are about 77,109 km (47,924 miles) of crude oil pipelines, 85,461 km (53,114 miles) of refined oil pipelines and 67,898 km (42,199 miles) of natural gas pipelines (FEMA, 1991). The total length of water and sewage pipelines is not readily available...
Underground oil pipelines are made of pressurized pipes, and when damage occurs, the consequences can be disastrous. Pipeline accidents caused by stress can be attributed to material corrosion, impractical design, manufacturing defect, environmental damage, and man-made destruction. In this study, by utilizing the stress analysis software CAESAR II, the stress of pipelines in high and steep slo...
The object of research: expander the excess gas pressure utilization plant.
 Investigated problem: Increasing efficiency process during its distribution from main high-pressure pipelines. Development hardware and software tools that provide automation regulating flow parameters under influence time-varying disturbances.
 scientific results: A mathematical model has been developed, an ...
The fundamental equations which describe the flow through gas and liquid pipelines are formally identical. However, the wide gap between the compressibility ranges of gases and liquids leads to quite different transport characteristics for both kinds of media. While for oil pipelines and pump stations specific topics like batch operation, surges, and possible slack line scenarios have to be con...
The analysis of two gas distribution systems related to the development promising areas in industry is carried out. To reduce costs system, it proposed use high and medium pressure, except for residential buildings. In front each agricultural object, necessary provide location cabinet installation. hydraulic calculation a dead-end network method rational pressure drops between sections was used...
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