scholarly journals Experimental Study of Discharge Coefficient at the Dentate Trapezoidal Labyrinth Weir

2021 ◽  
Vol 25 (3) ◽  
Keyword(s):  
Experimental Study ◽  
Discharge Coefficient ◽  
Labyrinth Weir

Discharge coefficient of a rectangular labyrinth weir

2013 ◽  
Vol 166 (8) ◽  
pp. 443-451 ◽  
Author(s):  
Abdorreza Kabiri-Samani ◽  
Amir Javaheri ◽  
Seyed Mahmood Borghei
Keyword(s):  
Discharge Coefficient ◽  
Labyrinth Weir

Experimental Study of Aerodynamic Behavior Downstream of Three Flow Conditioners

2002 ◽  
Author(s):  
Boualem Laribi ◽  
Pierre Wauters ◽  
Mohamed Aichouni
Keyword(s):  
Experimental Study ◽  
Reynolds Number ◽  
Comparative Study ◽  
Pipe Flow ◽  
Discharge Coefficient ◽  
Tube Bundle ◽  
Turbulent Pipe Flow ◽  
Orifice Plate ◽  
Flow Meter ◽  
Discharge Coefficients

The present work is concerned a comparative study of the decay of swirling turbulent pipe flow downstream of three flow conditioners, the Etoile, the Tube bundle, and the Laws perforate plate, and its effect on accuracy of orifice plate flow meter. The swirl was generated by a double 90° degrees elbows in perpendicular planes. The discharge coefficients were measured with 3 different orifice meters with β = 0.5, 0.62, 0.70 at different Reynolds number. As a conclusion, the experimental study of the three flow conditioners used separately shows that the flow need longer distance for close to fully developed pipe flow and some errors, by reason of the swirl, on the discharge coefficient were inevitable for distance less 12D.

Experimental Study of Various Porosity of Fractal Flow Conditioner for Orifice Plate Flowmeters

2014 ◽  
Vol 699 ◽  
pp. 915-920 ◽  
Author(s):  
Bukhari Manshoor ◽  
Mohd Fahmi Othman ◽  
Izzuddin Zaman ◽  
Zamani Ngali ◽  
Amir Khalid
Keyword(s):  
Experimental Study ◽  
Pressure Drop ◽  
Mass Flow Rate ◽  
Flow Rate ◽  
Experimental Work ◽  
Discharge Coefficient ◽  
Orifice Plate ◽  
Rate Data ◽  
Plant Industry ◽  
Measure Flow Rate

The plant industry is required to measure flow rate more accurately to meet plant operation and cost accounting objectives. The opposing concern of improving flow meter accuracy is resolved by using flow conditioners. The distance of implementation of flow conditioner upstream of the orifice plate flowmeter is also need to be addressed. Hence, in present study, an analysis of the porosity of fractal flow conditioner towards orifice plate flowmeter’s accuracy and the best distance of fractal flow conditioner upstream of the orifice plate flowmeter was determined. In an experimental work, a different porosity of the fractal flow conditioners were installed with different distance upstream of the orifice plate in conjunction with the different disturbances to assess the effects of these devices on the measurement of the mass flow rate. Data gained for all the plates showed that there is increment of pressure drop and change in discharge coefficient of the orifice with lower β value of fractal flow conditioner. Good comparisons with the previous experimental work demonstrate the fractal flow conditioner can preserve the accuracy of metering up to the level required in the standards.

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