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2019 | Vol. 40, no 1 | 103--114
Tytuł artykułu

Application of computer image analyzes in the investigation of refrigerants condensation in minichannels

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The image analysis consists in extracting from the information which is available to the observer of the part that is important from the perspective of the investigated process. This process usually accompanies a considerable reduction in the amount of information from the image. In the field of two-phase flows, computer image analysis can be used to determine flow and geometric parameters of flow patterns. This article presents the possibilities of using this method to determine the void fraction, vapor quality, bubble velocity and the geometric dimensions of flow patterns. The use of computer image analysis methods is illustrated by the example of HFE 7100 refrigerant methoxynonafluorobutane condensation in a glass tubular minichannel. The high speed video camera was used for the study, and the films and individual frames received during the study were analyzed.
Wydawca

Rocznik
Strony
103--114
Opis fizyczny
Bibliogr. 15 poz., rys.
Twórcy
  • Koszalin University of Technology, Śniadeckich 2, 75-453 Koszalin, Poland
Bibliografia
  • [1] Bohdal T.: Measurements of refrigerant void fraction in the channel. Chłodnictwo, 1(2003), 14–19 (in Polish).
  • [2] Chen Y., Wua R., Shi M., Wua J.: Visualization study of steam condensation in triangular microchannels. Peterson Int. J. Heat Mass Tran. 52(2009), 21-22, 5122–5129.
  • [3] Dziubiński M., Morawiak A.: Two-phae flow mixtures structures of liquid-liquid type in minichannels. Inżynieria i Aparatura Chemiczna 1(2010), 35–36 (in Polish).
  • [4] Kawaji M., Chung M.: Adiabatic gas–liquid flow in microchannels. Microscale Thermophysical Eng. 8(2004), 239–257.
  • [5] Kew P., Cornwell K.: Correlations for prediction of flow boiling heat transfer in small-diameter channels. Appl. Therm. Eng. 17(1997), 705–715.
  • [6] Kim S.-M., Kim J., Mudawar I: Flow condensation in parallel micro-channels – Part 1: Experimental results and assessment of pressure drop correlations. Int. J. Heat Mass Tran. 55(2012), 4, 971–983.
  • [7] Lackowski M., Kwidziński R., Karwacki J., Przybyliński T.: Experimental obserwations of flow structures during DEP controlled boiling in a microchanne. Arch. Thermodyn. 39(2018), 1, 129–145.
  • [8] Masiukiewicz M., Anweiler S.: Two-phase flow phenomena assessment on inichannels for compact heat exchangers using image analisis methods. Energ. Convers. Manage. 104(2015), 44–54.
  • [9] Michalska-Pożoga I., Tomkowski R., Rydzkowski T., Vijay Kumar Thakur: Towards the usage of image analysis technique to measure particles size and composition in wood-polymer composites. Ind. Crop. Prod. 92(2016), 149–156.
  • [10] Oliviera J. A., Liebenberg L., Thome J.R., Meyera J.P.: Heat transfer, pressure drop, and flow pattern recognition during condensation inside smooth, helical micro-fin, and herringbone tubes. Int. J. Refrig. 30(2007), 609–623.
  • [11] Ong C.L., Thome J.R.: Macro-to-microchannel transition in two-phase flow: Part 1 – Two-phase flow patterns and film thickness measurements. Exp. Therm. Fluid Sci. 35(2011), 4, 37–47.
  • [12] Tadeusiewicz R., Korohoda P.: Computer analysis and image processing. Telecommunication Development Foundation Publishes, Kraków 1997 (in Polish).
  • [13] Tamminen J., Lahdenperä E., Koiranen T., Kuronen T., Eerola T., Lensu L, Kälviäinen H.: Determination of single droplet sizes, velocities and concentrations with image analysis for reactive extraction of copper. Chem. Eng. Sci. 167(2017), 54–65.
  • [14] Ulbrich R., Krótkiewicz M., Szmolke N., Anweiler S., Masiukiewicz M., Zając D.: Recognition of two-phase flow patterns with the use of dynamic image analysis. Proc. Inst. Mech. Eng. E J. Process Mech. Eng. 216(2002), 4, 227–233.
  • [15] Xiao J., Hrnjak P.: A new flow regime map and void fraction model based on the flow characterization of condensation. Int. J. Heat Mass Tran. 108(2017), 443–452.
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW
przeznaczonych na działalność upowszechniającą naukę (2019).
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-38e67e6b-3b12-4a2c-83f3-932da99a0791
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