Investigation of the Contamination Influence on the Parameters of Gas Flow Through Multihole Orifice Flowmeter

Hasečić, Amra; Imamovic, Jasmina; Bikić, Siniša; Dzaferovic, Ejub

doi:10.1109/tim.2021.3063198

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…The flow was steady state, three dimensional and turbulent with the Re=10 5 . The initialized pressure was p=25 bar, while the temperature of dry air was T=298.15 K. Since grid sensitivity study was performed in previous research by authors [16,17,18] here the validation with experimental results obtained from literature [19] was done and presented in Table 2. Validation was done for simulation of flow through MHO without contamination, for 𝛽𝛽 = 0.7 and Re = 10 6 and as it can be seen from Figure 4, a good agreement was observed.…”

Section: Numerical Modelling Of Newtonian Fluid Flow Through the Mult...mentioning

confidence: 99%

Numerical Analysis of Newtonian Fluid Flow Through Multi-Hole Orifice Meter

Almutairi,

Hasečić,

Džaferović

2023

Proceedings of the 9th World Congress on Mechanical, Chemical, and Material Engineering

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The influence of multi-hole orifice flow meter geometry parameters on the parameters of Newtonian fluid through multihole orifice meters was investigated using computational fluid dynamics as well as the effect of contamination in front of the MHO flow meter. The air flow was steady, three-dimensional, and turbulent. Analysed Newtonian fluid was air and physical properties that were considered were density and dynamic viscosity. The numerical method was finite volume method, and standard k-ε turbulence model was used for turbulence modelling. Multi-hole orifice meter with three different β parameters 0.55, 0.6 and 0.7, was observed and Reynold's number was 10 5 . The pressure drop and discharge coefficient were analysed. Numerical simulations were performed using commercial software the STAR-CCM+ 2019.2. It was found that increase in 𝛽𝛽 parameter results with the decrease in pressure drop and increase in discharge coefficient. Also, it was found that that the influence of 𝛽𝛽 parameter is much higher when analyzing pressure drop rather than discharge coefficient values. Numerical simulations were also performed to investigate the effect of contaminations in front of the MHO plate with 𝛽𝛽 = 0.5, on the discharge coefficients. It was found that as the contamination angle is increased the discharge coefficient tends to increase.

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Section: Numerical Modelling Of Newtonian Fluid Flow Through the Mult...mentioning

confidence: 99%

Numerical Analysis of Newtonian Fluid Flow Through Multi-Hole Orifice Meter

Almutairi,

Hasečić,

Džaferović

2023

Proceedings of the 9th World Congress on Mechanical, Chemical, and Material Engineering

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“…It is shown that the pressure drops across fractal-shaped orifices are smaller than pressure drops across normal circular orifices in the same flow regions. Amra Hasec et al [20] studied the effect of contamination on the pressure taps to show that when there is contamination, the discharge coefficient is increased, resulting in a negative measurement error regardless of the Reynolds number. The multi-hole orifice metre was shown to be less sensitive to pressure drop fluctuations induced by an increase in the contamination angle compared to single-hole orifice metres.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Differential Pressure and Permanent Pressure Loss on Multi-Hole Orifice Plate

Hariguru,

Srinivasan

2023

Measurement Science Review

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The widely used orifice plate falls under restricted type flow devices, has the highest differential pressure and permanent pressure drop in the ensemble. The objective is to curtail the permanent pressure drop and maintain the differential pressure across the orifice plate, and thereby, the power required to pump the liquid is retrenched. So, three-hole, four-hole and five-hole orifice plates with an identical area to that of the single-hole orifice plate were designed and experiments were carried out. It is observed that the experimental results almost matched with the simulation data. In comparing the performance, the four-hole orifice plate yielded a higher differential pressure and higher-pressure loss. In contrast, the five-hole orifice yielded lower differential pressure and higher-pressure loss compared to the single-hole orifice plate. In case of three-hole orifice plate it performed better than the single-hole orifice with reduced pressure loss and higher differential pressure. It was also found that the power consumed by the pump for pumping was lower for three-hole, four-hole and five-hole orifice plates compared to the single-hole orifice plate. Thus, the three-hole orifice plate performs better than a single-hole orifice plate in terms of higher differential pressure, reduced permanent pressure loss and lower power consumption of the pump.

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