Slotted Orifice Plate Flow Meter

2010 ◽  
Vol 3 (2) ◽  
pp. 149-153
Author(s):  
Ramraj H. Sundararaj ◽  
Abhijit Kushari
Keyword(s):  
Orifice Plate ◽  
Flow Meter

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.

A new type of wet gas online flow meter based on dual slotted orifice plate

2008 ◽  
Author(s):  
Yuxing Li ◽  
Lingya Meng ◽  
Jun Wang ◽  
Yanfeng Geng
Keyword(s):  
Orifice Plate ◽  
Flow Meter ◽  
Wet Gas ◽  
New Type

Multiphase flow measurements using coupled slotted orifice plate and swirl flow meter

2014 ◽  
Vol 40 ◽  
pp. 157-161 ◽  
Author(s):  
Sahand Pirouzpanah ◽  
Muhammet Çevik ◽  
Gerald L. Morrison
Keyword(s):  
Multiphase Flow ◽  
Swirl Flow ◽  
Orifice Plate ◽  
Flow Meter ◽  
Flow Measurements

scholarly journals Pengujian Orifice Flow Meter dengan Kapasitas Aliran Rendah

MECHANICAL ◽  
2016 ◽  
Vol 7 (2) ◽  
Author(s):  
Ainul Ghurri ◽  
S.P.G. Gunawan Tisna ◽  
Syamsudin Syamsudin
Keyword(s):  
Low Cost ◽  
Metal Plate ◽  
Diameter Ratio ◽  
Orifice Plate ◽  
Low Flow ◽  
Inlet Section ◽  
Flow Meter ◽  
Flow Capacity ◽  
Orifice Flow ◽  
Orifice Flow Meter

Orifice flow meter is used in many laboratory and industrial application due because of its simple design and low cost. The present research investigated an orifice flow meter operated in relatively low flow rate. Orifice plate is a metal plate, 10 mm width provided with bevel at inlet section. The diameter ratios (β) are 0.3, 0.4, 0.5, 0.6, 0.7, and 0.8, respectively. The experiment used water with flowrate range having Reynolds number between 6827,55 and 8004,72. The fluid is flown through the orifice plate. Pressure taps are used to measure pressure at upstream and downstream of the orifice plate. The actual capacity is directly measured at an outlet reservoir; while the theoretical capacity is calculated using modified Bernoulli equation with diameter ratio (β) within the equation. The results showed that the irrecoverable pressure drop decreased with the increase of flow capacity and the diameter ratio. The discharge coefficient of the orifice flowmeter ranged between 0.3 and 1.3.

Slotted Orifice Plate Flow Meter

2010 ◽  
Vol 3 (2) ◽  
pp. 149-153
Author(s):  
Ramraj H. Sundararaj ◽  
Abhijit Kushari
Keyword(s):  
Orifice Plate ◽  
Flow Meter

The Swirling Orifice Plate: A Flowmeter for All Reasons

2005 ◽  
Author(s):  
A. Ahmadi ◽  
S. B. M. Beck ◽  
R. Stanway
Keyword(s):  
Swirling Flow ◽  
Velocity Profiles ◽  
Orifice Plate ◽  
Flow Conditions ◽  
Flow Meter ◽  
Practical Applications ◽  
Flow Disturbances ◽  
Mass Flow Rates ◽  
Experimental Rig ◽  
Desirable Effect

The orifice plate flow meter is the most common form of differential pressure flow meter used in industry. The standard discharge coefficient, which is defined by both British Standard and ISO 5167, is only valid if the flow approaching the meter is perfectly settled and fully developed. However, in practical applications the flow approaching the orifice meter is often disturbed by pipe-fittings and consequently the measurements become inaccurate. Basically, the design of the orifice plate meters that are independent of the upstream disturbances is a main goal for orifice plate metering. This task can be achieved either by using a long straight settling length upstream and downstream of the orifice plate or using a flow conditioner upstream of an orifice plate. In addition, the standard orifice plate is vulnerable when metering dirty flow due to the accumulation of dirt in front of the orifice plate which can alter the accuracy of metering as well. In this paper the effect of the swirler flow conditioner for both standard and non-standard flow conditions has been investigated in an experimental rig and validation of the results has been justified with the appropriate CFD domains. In these investigations the effect of different designs of swirler flow conditioners have been examined in asymmetric and swirling flow profiles. The results so far show the cone swirler flow conditioner has a desirable effect for both asymmetric and swirling flow disturbances. They also show the error of metering for non-standard velocity profiles with the swirler flow conditioner is typically 1.5% compared to around 4% for a standard orifice plate. Moreover using a swirler conditioner tends to keep particles in suspension and thus prevents the accumulation of dirt particles in front of orifice plate. All experimental and numerical results here are presented for different velocity profiles both swirling and asymmetric profiles, mass flow rates and for β = 0.5.

Sign in / Sign up

Export Citation Format

Share Document