MODELING FRICTION FACTOR IN ANNULAR SLUG FLOW IN INCLINED PIPES BY GENETIC ALGORITHM

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NOBAKHT HASSANLOUEI REZA; FIROUZFAR HASTI; AKHTARI SARA; KASIRI N.; KHANOF M.H.

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Seminar: CHEMICAL ENGINEERING CONGRESS AND EXHIBITION
Year:2011 | Issue:7

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Title

MODELING FRICTION FACTOR IN ANNULAR SLUG FLOW IN INCLINED PIPES BY GENETIC ALGORITHM

Author(s)

Keywords

PRESSURE DROP

FRICTION FACTOR

FLOW PATTERN

TWO PHASE FLOW

GENETIC ALGORITHM

Abstract

TWO-PHASE FLOW TRANSPORTATION THROUGH PIPELINES LOCATED IN HILLY TERRAIN IS COMMONLY ENCOUNTERED IN THE PROCESS INDUSTRY. BECAUSE OF THE PROBLEMS ASSOCIATED WITH OIL AND GAS PRODUCTION OFFSHORE, IT IS USUALLY NECESSARY TO HAVE A COMMON PIPELINE FOR THE LIQUID AND THE GAS STREAMS. IN GATHERING SYSTEMS SET UP FOR OILFIELDS, TWO-PHASE MIXTURES MUST BE TRANSPORTED FROM THE WELLS TO THE SEPARATION FACILITY. IN THIS STUDY, TWO-PHASE FLOW OF ANNULAR SLUG PATTERN WAS CREATED TO ENABLE MEASUREMENT OF PRESSURE DROP IN AN INCLINED PIPELINE OF AN UPWARD INCLINATION ANGEL 0 TO 40O. A TEST SECTION OF 30MM DIAMETER AND OF 3M LENGTH MADE OF PLEXY-GLASS WAS USED IN THE EXPERIMENTAL SETUP.THE SUPERFICIAL GAS VELOCITY WAS KEPT CONSTANT AT PRESET VALUES OF 20 AND 40 LIT/MIN OVER THE EXPERIMENTATION PERIOD. THE LIQUID SUPERFICIAL VELOCITY WAS CHANGED FROM 80 TO 1000 LIT/HR WHILE THE PIPELINE INCLINATION WAS VARIED AT 5O STEPS OVER THE 40O RANGE. PRESSURE DROP WAS MEASURED AFTER THE FLOW HAD BECOME FULLY DEVELOPED INTO AN STEADY STATE CONDITION. A MIXED TRIGONOMETRIC FUNCTION AND POWER SERIES WAS INTRODUCED TO PROVIDE THE FRICTION FACTOR FUNCTIONALITY IN FR, RE AND Q. A GENETIC ALGORITHM ROUTINE WAS USED TO DETERMINE THE OPTIMAL FUNCTION PARAMETERS. THE MODEL DEVELOPED WAS EXAMINED AGAINST EXPERIMENTALLY MEASURED DATA AND GOOD AGREEMENT WAS RECORDED WITH LESS THAN 0.012 MEAN ERROR.

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APA: Copy

NOBAKHT HASSANLOUEI, REZA, FIROUZFAR, HASTI, AKHTARI, SARA, KASIRI, N., & KHANOF, M.H.. (2011). MODELING FRICTION FACTOR IN ANNULAR SLUG FLOW IN INCLINED PIPES BY GENETIC ALGORITHM. INTERNATIONAL CHEMICAL ENGINEERING CONGRESS AND EXHIBITION. SID. https://sid.ir/paper/908733/en

Vancouver: Copy

NOBAKHT HASSANLOUEI REZA, FIROUZFAR HASTI, AKHTARI SARA, KASIRI N., KHANOF M.H.. MODELING FRICTION FACTOR IN ANNULAR SLUG FLOW IN INCLINED PIPES BY GENETIC ALGORITHM. 2011. Available from: https://sid.ir/paper/908733/en

IEEE: Copy

REZA NOBAKHT HASSANLOUEI, HASTI FIROUZFAR, SARA AKHTARI, N. KASIRI, and M.H. KHANOF, “MODELING FRICTION FACTOR IN ANNULAR SLUG FLOW IN INCLINED PIPES BY GENETIC ALGORITHM,” presented at the INTERNATIONAL CHEMICAL ENGINEERING CONGRESS AND EXHIBITION. 2011, [Online]. Available: https://sid.ir/paper/908733/en

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