Computer Aided Design of Differential Pressure Flow Meters

Yevhen Pistun, Leonid Lesovoy, Fedir Matiko, Roman Fedoryshyn

Department of Automation of Heat and Chemical Processes, Lviv Polytechnic National University, Lviv, Ukraine.

DOI: 10.4236/wjet.2014.22009                

Abstract

New methodology of designing the differential pressure flow meters for fluid energy carriers is developed in order to provide minimum uncertainty of results of flow rate measurement. This methodology is implemented in “Raskhod-RU” CAD system for computer aided design and calculation of differential pressure flow meters. “Raskhod-RU” CAD meets the requirements of new Standards implemented in CIS countries (GOST 8.586.1,2,3,4,5-2005) and provides accomplishment of the following tasks: verification of conditions (constraints) for application of the differential pressure method according to the requirements of new Standards; calculation of parameters of primary device, pipe straight lengths and flow meter in general according to the requirements of new Standards; calculation of uncertainty of results of fluid flow rate and volume measurement.

Keywords

Flow Meter, Design, Uncertainty, Optimization, Requirements

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	ISO 5167-1:2003. Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-Section Conduits Running Full—Part 1: General Principles and Requirements.
[2]	ISO 5167-2:2003. Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-Section Conduits Running Full—Part 2: Orifice Plates.
[3]	ISO 5167-3:2003. Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-Section Conduits Running Full—Part 3: Nozzles and Venturi Nozzles.
[4]	ISO 5167-4:2003. Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-Section Conduits Running Full—Part 4: Venturi Tubes.
[5]	GOST 8.586.1-2005 (ISO 5167-1:2003) Measurement of Flowrate and Volume of Liquid and Gas by Means of Standard Pressure Differential Devices—Part 1. Principle of Method of Measurement and General Requirements. (Russian)
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