Design of linear capillary measuring transducers for low gas flow rates

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.150526

Keywords:

capillary package, bridge capillary circuit, linearity of conversion function, low gas flow rate

Abstract

The performed analysis of known capillary flowmeters for low gas flows reveals the prospect of constructing the primary measuring transducers of flowmeters with a linear output signal. Owing to the stability of dimensions of the pass-through channels in glass capillaries channels such flowmeters can demonstrate high metrological characteristics. In this regard, we have investigated the capillary as a sensing element in the primary transducers of flowmeters for low gas flows.

Different circuits of capillary primary transducers for the measuring instruments of low gas flow rate have been examined. Our study makes it possible to select the optimal circuit of a primary measuring transducer based on the measurement range, as well as the number and size of the pass-through channels in capillaries. For example, the flow meter based on a package of capillaries demonstrates a wider measurement range compared to other schemes.

We have derived analytical dependences that enable the design of single- capillary, package, and bridge transducers. Comparative characteristics of the specified primary measuring transducers are provided. We have constructed algorithms for calculating dimensions of channels in the capillaries of transducers with a linear output signal.

The influence of temperature and barometric pressure on a deviation in the static characteristic of the transducer has been estimated. It was established that the bridge circuit, unlike others, ensures partial compensation for the influence of external factors.

We have designed and investigated a capillary oxygen flowmeter, constructed using the bridge measurement circuit with a linear conversion function, intended for an automated system of the manufacturing process of workpieces for fiber light guides. The upper limit of measurement by the flowmeter is at the level of 54 l/h, its basic relative error is 0.8 %

Author Biographies

Zenoviy Teplukh, Lviv Polytechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

Doctor of Technical Sciences, Professor

Department of Automation and Computer Integrated Technologies

Ihor Dilay, Lviv Polytechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

Doctor of Technical Sciences, Associate Professor

Department of Automation and Computer Integrated Technologies

Ivan Stasiuk, Lviv Polytechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

PhD, Associate Professor

Department of Automation and Computer Integrated Technologies

Myroslav Tykhan, Lviv Polytechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

Doctor of Technical Sciences, Associate Professor

Department of precision mechanics devices

Ivan-Roman Kubara, Lviv Polytechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

Postgraduate student

Department of Automation and Computer Integrated Technologies

References

  1. The 8th international Gas Analysis Symposium & Exhibition (GAS 2015) (2015). Rotterdam. Available at: http://www.gas2015.org/publicaties/4349
  2. Słomińska, M., Konieczka, P., Namieśnik, J. (2014). New developments in preparation and use of standard gas mixtures. TrAC Trends in Analytical Chemistry, 62, 135–143. doi: https://doi.org/10.1016/j.trac.2014.07.013
  3. Takami, T., Nishimoto, K., Goto, T., Ogawa, S., Iwata, F., Takakuwa, Y. (2016). Argon gas flow through glass nanopipette. Japanese Journal of Applied Physics, 55 (12), 125202. doi: https://doi.org/10.7567/jjap.55.125202
  4. Henderson, M. A., Runcie, C. (2017). Gas, tubes and flow. Anaesthesia & Intensive Care Medicine, 18 (4), 180–184. doi: https://doi.org/10.1016/j.mpaic.2017.01.009
  5. Brewer, P. J., Goody, B. A., Gillam, T., Brown, R. J. C., Milton, M. J. T. (2010). High-accuracy stable gas flow dilution using an internally calibrated network of critical flow orifices. Measurement Science and Technology, 21 (11), 115902. doi: https://doi.org/10.1088/0957-0233/21/11/115902
  6. Farzaneh-Gord, M., Parvizi, S., Arabkoohsar, A., Machado, L., Koury, R. N. N. (2015). Potential use of capillary tube thermal mass flow meters to measure residential natural gas consumption. Journal of Natural Gas Science and Engineering, 22, 540–550. doi: https://doi.org/10.1016/j.jngse.2015.01.009
  7. West, T Photiou, A. (2018). Measurement of gas volume and gas flow. Anaesthesia & Intensive Care Medicine, 19 (4), 183–188. doi: https://doi.org/10.1016/j.mpaic.2018.02.004
  8. Nuszkowski, J., Schwamb, J., Esposito, J. (2016). A novel gas divider using nonlinear laminar flow. Flow Measurement and Instrumentation, 52, 255–260. doi: https://doi.org/10.1016/j.flowmeasinst.2016.10.016
  9. Blinov, L. M., Gerasimenko, A. P., Guljaev, Ju. V. (2010). Pat. No. 2433091 RF. Method to manufacture quartz stocks of single-mode fibre waveguides, device for its realisation and stocks manufactured by this method. No. 2010115371/03; declareted: 19.04.2010; published: 10.11.2011, Bul. No. 31. Available at: http://www.freepatent.ru/patents/2433091
  10. Berg, R. F., Moldover, M. R. (2012). Recommended Viscosities of 11 Dilute Gases at 25 °C. Journal of Physical and Chemical Reference Data, 41 (4), 043104. doi: https://doi.org/10.1063/1.4765368
  11. Stasiuk, I. (2015). Dynamical Capillary Flowmeters of Small and Micro Flowrates of Gases. Energy Engineering and Control Systems, 1 (2), 117–126. doi: https://doi.org/10.23939/jeecs2015.02.117
  12. Topolnicki, J., Kudasik, M., Skoczylas, N., Sobczyk, J. (2009). Low cost capillary flow meter. Sensors and Actuators A: Physical, 152 (2), 146–150. doi: https://doi.org/10.1016/j.sna.2009.03.023
  13. Prysiazhniuk, T. I. (2010). Termokompensovanyi vytratomir z mikroprotsesornym vtorynnym pryladom. Metrolohiya ta prylady, 4, 30–32. Available at: http://ifdcsms.com.ua/index.php?id=33&mhnews_id=380&mhnews_newsid=28942&mhnews_page=2
  14. Barbe, J., Boineau, F., Macé, T., Otal, P. (2015). Development of a gas micro-flow transfer standard. Flow Measurement and Instrumentation, 44, 43–50. doi: https://doi.org/10.1016/j.flowmeasinst.2014.11.011
  15. Miyara, A., Alam, M. J., Kariya, K. (2018). Measurement of viscosity of trans-1-chloro-3,3,3-trifluoropropene (R-1233zd(E)) by tandem capillary tubes method. International Journal of Refrigeration, 92, 86–93. doi: https://doi.org/10.1016/j.ijrefrig.2018.05.021
  16. GOST 1224-71. Steklo termometricheskoe. Marki (2003). Moscow: Izd-vo standartov, 4.
  17. Kremlevskiy, P. P. (2002). Raskhodomery i schetchiki kolichestva veshchestv. Kn. 1. Sankt-Peterburg: Politekhnika, 409.
  18. Dilai, I. V., Tepliukh, Z. M., Vashkurak, Yu. Z. (2014). Basic throttling schemes of gas mixture synthesis systems. Eastern-European Journal of Enterprise Technologies, 4 (8 (70)), 39–45. doi: https://doi.org/10.15587/1729-4061.2014.26257
  19. Dilai, I. V., Tepliukh, Z. M., Brylynskyi, R. B. (2014). Research of capillary pressure divider for complex throttle circuits. Technology audit and production reserves, 5 (2 (19)), 9–14. doi: https://doi.org/10.15587/2312-8372.2014.28099
  20. Dilai, I. V., Tepliukh, Z. M. (2014). Development of throttle selector of significantly different pressures for gas-dynamic tools. Eastern-European Journal of Enterprise Technologies, 6 (7 (72)), 28–33. doi: https://doi.org/10.15587/1729-4061.2014.31390

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Published

2018-12-12

How to Cite

Teplukh, Z., Dilay, I., Stasiuk, I., Tykhan, M., & Kubara, I.-R. (2018). Design of linear capillary measuring transducers for low gas flow rates. Eastern-European Journal of Enterprise Technologies, 6(5 (96), 25–32. https://doi.org/10.15587/1729-4061.2018.150526

Issue

Vol. 6 No. 5 (96) (2018): Applied physics

Section

Applied physics

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Copyright (c) 2018 Zenoviy Teplukh, Ihor Dilay, Ivan Stasiuk, Myroslav Tykhan, Ivan-Roman Kubara

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