Development of a New Model for Prediction of Gas Turbine Flowmeter Performance Using CFD Simulation

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RAHMATI B.; HASHEMABADI S.H.; Salemi Mojarrad m.

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Journal: Modares Mechanical Engineering Year:2020 | Volume:20 | Issue:7 Page(s): 1933-1941

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Title

Development of a New Model for Prediction of Gas Turbine Flowmeter Performance Using CFD Simulation

Author(s)

RAHMATI B. | HASHEMABADI S.H. | Salemi Mojarrad m. | Issue Writer Certificate

Keywords

Gas Turbine FlowmeterQ1

Torque Balance TheoryQ1

CFD SimulationQ1

Multiple Reference Frame (MRF) ModelQ1

Abstract

The present study is a numerical model for prediction of turbine flowmeter performance, using the equation of motion based on Torque Balance Theory. In this model, numerical simulations were carried out for a 2-inch diameter G65 and PN/ANSI 150 Gas Turbine Flowmeter which was made by Vemmtec Company, in steady state, using Multiple Reference Frame (MRF) model and Standard k-ε turbulence model using Fluent software. In order to model torque balance equation and calculate angular velocity of rotor, a UDF (User Defined Function) code was created and was added to the software. To evaluate the model’ s accuracy, simulation results were compared with experimental data which was obtained from manufacturer of the meter. The difference between the simulation results and experimental data was 0. 16%, approximately, which indicates the validity of the proposed model in simulating of turbine gas flowmeter performance. The results obtained from the simulation depicted that the velocity distribution asymmetry was more than 0. 4Qmax at the downstream of the meter, and because this phenomenon had no negative effect on flow measurement, the suitable length for the flow development for the downstream of meter was done using simulation at least 10 times the diameter of the pipe was proposed. Therefore, using the proposed model, the capital cost of design and optimization of turbine flowmeters can be reduced.

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APA: Copy

RAHMATI, B., HASHEMABADI, S.H., & Salemi Mojarrad, m.. (2020). Development of a New Model for Prediction of Gas Turbine Flowmeter Performance Using CFD Simulation. MODARES MECHANICAL ENGINEERING, 20(7 ), 1933-1941. SID. https://sid.ir/paper/374778/en

Vancouver: Copy

RAHMATI B., HASHEMABADI S.H., Salemi Mojarrad m.. Development of a New Model for Prediction of Gas Turbine Flowmeter Performance Using CFD Simulation. MODARES MECHANICAL ENGINEERING[Internet]. 2020;20(7 ):1933-1941. Available from: https://sid.ir/paper/374778/en

IEEE: Copy

B. RAHMATI, S.H. HASHEMABADI, and m. Salemi Mojarrad, “Development of a New Model for Prediction of Gas Turbine Flowmeter Performance Using CFD Simulation,” MODARES MECHANICAL ENGINEERING, vol. 20, no. 7 , pp. 1933–1941, 2020, [Online]. Available: https://sid.ir/paper/374778/en

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