TAILIEUCHUNG - Báo cáo nghiên cứu khoa học: "NUMERICAL MODEL OF SINGLE PHASE TURBULENT FLOWS FOR CALCULATION OF PRESSURE DROP ALONG GAS PIPELINES "

TẠP CHÍ PHÁT TRIỂN KH&CN, TẬP 9,Số 4-2006 Vu Tu Hoai(1), Nguyen Thanh Nam(2) (1) . “Vietsovpetro” (2) University of Technology, VNUHCM (Manuscript Received on December 12 th, 2005, Manuscript Revised March 27 th, 2006) ABSTRACT: Calculation of pressure drop along gas pipelines is an important activity in order to ensure safety and effectiveness in petroleum gas transportation. We can’t control the transportation process unless we understand that technology. In reality, it’s very difficult to calculate exactly parameters from flow equations because they are concerned with a lot of complex chemiphisical and dynamic progresses. So, some experimental equations originated from the flow equation. | TẠP CHÍ PHÁT TRIỂN KH CN TẬP 9 Số 4-2006 NUMERICAL MODEL OF SINGLE PHASE TURBULENT FLOWS FOR CALCULATION OF PRESSURE DROP ALONG GAS PIPELINES Vu Tu Hoai 1 Nguyen Thanh Nam 2 1 . Vietsovpetro 2 University of Technology VNUHCM Manuscript Received on December 12 th 2005 Manuscript Revised March 27th 2006 ABSTRACT Calculation of pressure drop along gas pipelines is an important activity in order to ensure safety and effectiveness in petroleum gas transportation. We can t control the transportation process unless we understand that technology. In reality it s very difficult to calculate exactly parameters from flow equations because they are concerned with a lot of complex chemiphisical and dynamic progresses. So some experimental equations originated from the flow equation and related physical quantities are used in calculating the pressure drop along the gas pipelines. The result in each case is compared with the real value of the pipeline practice. Basing on that we can draw a suitable calculation method applied for the gas pipeline from Bach Ho mine to Dinh Co station. Up to now there have been many researches in calculating petroleum gas transportation technology by experimental equations. But when these equations are applied in specific cases even with commercial software the results are different from each others and from reality 3 . Associated gas is a mixture of hydrocarbon and some admixtures such as nitrogen N2 hydrogen sulfite H2S dioxide carbon CO2 . Gas containing an amount of H2S or CO2 is called acid gas. Hydrocarbons are methane ethane propane butane pentane a small amount of hexane and heptanes as well as some other heavy hydrocarbons. Although calculation of transportation technology has been done many times all over the world 1 2 5 it is still rather new to our petroleum branch. Through this research work the authors would like to introduce a new research direction in transportation technology in our country which still has many .

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