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  4. Algorithm for Calculating Flowrate of Fluid Energy Carrier for Flowmeter Based on Standard Long Radius Nozzle

Algorithm for Calculating Flowrate of Fluid Energy Carrier for Flowmeter Based on Standard Long Radius Nozzle

JEECS.
2021;
Volume 7, Number 2
: pp. 117 – 125
https://doi.org/10.23939/jeecs2021.02.117
Received: April 04, 2021
Revised: November 12, 2021
Accepted: November 19, 2021

L. Lesovoy, F. Matiko, I. Maidanovych. Algorithm for calculating flowrate of fluid energy carrier for flowmeter based on standard long radius nozzle. Energy Engineering and Control Systems, 2021, Vol. 7, No. 2, pp. 117 – 125. https://doi.org/10.23939/jeecs2021.02.117

Authors:
  1. Leonid Lesovoy
  2. Fedir Matiko
  3. Iryna Maidanovych
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University

New equation and algorithm are developed for non-iterative calculating flowrate of fluid energy carrier for pressure differential flowmeter based on long radius nozzle. This equation implicitly contains three build-in iterative cycles for calculating flowrate. According to the results of comparing the flowrate values obtained by developed non-iterative algorithm to the flowrate values by standard iterative algorithm, the authors found that the developed non-iterative algorithm ensures the accuracy of flowrate calculation specified by the requirements of DSTU GOST 8.586.5:2009. Therefore, the proposed equation and algorithm for calculating flowrate can be used for flowmeters based on standard long radius nozzle for both technological and commercial metering flowrate of fluid energy carriers. Application of the developed algorithm makes it possible to increase the speed of calculating flowrate of fluid energy carriers by means of microprocessor controllers.

flowrate
pressure differential method
primary device
long radius nozzle
algorithm
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  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.
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