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  4. Algorithm for Defining the Amount of Energy Transferred by Dry Saturated Steam

Algorithm for Defining the Amount of Energy Transferred by Dry Saturated Steam

JEECS.
2023;
Volume 9, Number 2
: pp. 93 – 104
https://doi.org/10.23939/jeecs2023.02.093
Received: August 22, 2023
Revised: December 08, 2023
Accepted: December 15, 2023

L. Lesovoi, R. Fedoryshyn, O. Pistun. Algorithm for defining the amount of energy transferred by dry saturated steam. Energy Engineering and Control Systems, 2023, Vol. 9, No. 2, pp. 93 – 104. https://doi.org/10.23939/jeecs2023.02.093

Authors:
  1. Leonid Lesovoy
  2. Roman Fedoryshyn
  3. Oleh Pistun
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University

The algorithm for determining the amount of energy transferred by the dry saturated steam has been developed. The steam flow rate is measured by means of the differential pressure method with application of a standard long radius nozzle of a high-ratio type and a low-ratio type. The equations for determining the thermodynamic temperature of dry saturated steam when measuring its absolute pressure was applied together with the equations for determining the absolute pressure of dry saturated steam when measuring its thermodynamic temperature. A new non-iterative equation for calculating the mass flow rate of the heat energy carrier was obtained. The proposed method and equation for determining the amount of energy can be applied in digital devices for both technological and custody transfer metering of fluid energy carriers. Application of the developed algorithm in the microprocessor controllers and calculators provides the increase of computational speed at measurement of the amount of energy transferred by the fluid energy carrier with application of a long radius nozzle.

amount of energy
differential pressure method
long radius nozzle
dry saturated steam
algorithm
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  2. ISO  5167-2:2022.  Measurement  of  Fluid  Flow  by  Means  of  Pressure  Differential  Devices  Inserted  in  Circular  Cross-Section Conduits Running Full—Part 2: Orifice Plates.
  3. ISO  5167-3:2022.  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  5167-4:2022.  Measurement  of  Fluid  Flow  by  Means  of  Pressure  Differential  Devices  Inserted  in  Circular  Cross-Section Conduits Running Full—Part 4: Venturi tubes.
  5. ISO  5167-6:2022.  Measurement  of  Fluid  Flow  by  Means  of  Pressure  Differential  Devices  Inserted  in  Circular  Cross-Section Conduits Running Full—Part 6: Wedge meters.
  6. DSTU GOST 8.586.1:2009 (ISO 5167-1:2003). Metrology. Measurements of Liquid and Gas Flow Rate and Volume by Means of Standard Differential Pressure Devices.  Part 1. General Principles and Requirements (GOST 8.586.1–2005(ISO 5167-1:2003), IDT; ISO 5167-1:2003, MOD). (in Ukrainian)
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  9. DSTU GOST 8.586.4:2009 (ISO 5167-4:2003). Metrology. Measurements of Liquid and Gas Flow Rate and Volume by Means of Standard Differential Pressure Devices.  Part 4. Venturi Tubes. Requirements (GOST 8.586.4–2005(ISO 5167-4:2003), IDT; ISO 5167-4:2003, MOD). (in Ukrainian)
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