Abstract
The review of probing methods of two-phase flows is presented. Methods of electrical, optical, acoustical, and thermal probing are considered and their main errors are determined. It is shown that when determining the true local volume void fraction φL by the probing method of the flow, the errors that are small can be decreased via increasing the measurement duration and the frequency of the supplying voltage. The procedure is presented, based on which, the selection of the optimal (relatively minimal error) of the true volume void fraction is possible. The use of the suggested procedure makes it possible to increase the accuracy of determining φL and to improve the representativeness of the data. Advantages and disadvantages of the methods of optical probing and acoustic probing compared with electrical probing are considered. The method of thermal probing is described. When implementing it, the thermocouple junction is used, which is heated by passing the alternate current. Block diagrams of thermocouple probes and the procedure of determining the true volume void fraction using the thermal probing procedure are determined.
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References
Theoretical Foundations of Heat Engineering. Heat-Engineering Experiment: Handbook, Ed. by A. V. Klimenko and V. M. Zorin, (MEI, Moscow, 2001) [in Russian].
L. Z. Shenderov, A. G. Kvashnin, and V. V. Dil’man, “Local variation in the void fraction,” Inzh.-Fiz. Zh. 38 (6), 1005–1010 (1980).
L. Z. Shenderov and V. V. Dil’man, “Average and local void fractions in two-phase flows,” Teploenergetika, No. 4, 46–48 (1988).
V. A. Solodkii, “Error in determining the void fraction in two-phase flows,” Teploenergetika, No. 9, 48–51 (1987).
A. A. Tsyganok, Yu. P. Dzhusov, N. M. Mityaev, et al., Interaction of Vapor Bubbles with the Probe in Two-Phase Flows (Teploenergetika, Moscow, 1979) [in Russian].
E. A. Boltenko, Yu. P. Dzhusov, A. I. Stepin, et al., “A system for measuring the local true volume void fraction,” in “Hydrodynamic and Heat Exchange in Nonsteady Conditions,” Interdepartmental Conf. “Teplofizika-89” (FEI, Obninsk, 1992) [in Russian].
E. A. Boltenko and D. E. Boltenko, Patent RF 2186377, Byull. Izobret. No. 21 (2002).
D. E. Boltenko, Candidate’s Dissertation in Engineering Sciences (Kazan, 2006).
D. E. Boltenko, N. N. Kirin, and E. A. Boltenko, “Determination of true volume void fraction using electrical probing of the two-phase flow,” Teploenergetika, No. 4, 53–56 (2008).
V. A. Burlakov, E. A. Boltenko, and Yu. A. Dzhusov, USSR Inventor’s Certificate No. 1 250 047, Byull. Izobret., No. 14 (1991).
O. N. Kashinskii, P. D. Lobanov, A. S. Kurdyumov, and V. V. Randin, “Heat exchange and hydrodynamics of ascending two-phase flow in an axially symmetric ring channel,” Abstracts of papers, XIV Minsk Int. Forum on Heat-and-Mass Transfer (Minsk, 2012, pp. 128–130) [in Russian].
V. I. Mel’nikov and G. B. Usynin, Acoustic Diagnostics Methods of Two-Phase Heat Carriers of Nuclear Power Installations (Energoatomizdat, Moscow, 1987) [in Russian].
B. I. Leonchik and V. P. Mayakin, Measurement in Dispersed Flows (Energoatomizdat, Moscow, 1981) [in Russian].
D. E. Boltenko, N. N. Kirin, E. A. Boltenko, and V. P. Sharov, RF Patent 2 289 107, Byull. Izobret, No. 34 (2006).
E. A. Boltenko, V. P. Sharov, and D. E. Boltenko, “Determination of characteristics of single-phase and two-phase flows by thermal probing,” Abstracts of Papers, 4th All-Russia and KOOMET (Cooperation in Metrology) Participant Countries on Thermometry Problems “Temperatura-2011” (St. Petersburg, 2011, pp. 124–125) [in Russian].
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Original Russian Text © D.E. Boltenko, E.A. Boltenko, 2013, published in Teploenergetika.
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Boltenko, D.E., Boltenko, E.A. Methods of probing the two-phase flows (review). Therm. Eng. 60, 598–606 (2013). https://doi.org/10.1134/S004060151307001X
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DOI: https://doi.org/10.1134/S004060151307001X