Effect of liquid reynolds number on pressure drop of evaporative R-290 in 500μm circular tube

Sentot Novianto, Agus S. Pamitran, Raldi Koestoer, Jong Taek Oh, Kiyoshi Saito

    Research output: Contribution to journalArticle

    Abstract

    Due to certain advantages, natural refrigerants have recently become more popular. Environmental issues motivate this study, focused on the characteristics of propane (R-290) as a replacement for conventional refrigerants. The aim of the present research is to characterize the pressure drop of evaporative R-290 in a microchannel of 500μm diameter and 0.5 m length. The variables of the experimental conditions are mass flux between 155 and 1071 kg/m2s and vapor quality between 0 and unity. The results show a laminar flow for liquid R-290 and a turbulence flow for vapor. Some existing correlations of two-phase flow viscosity were used to predict the pressure drop. For homogeneous model, Dukler et al.'s (1964) prediction viscosity correlation best predicted the present experimental pressure drop.

    Original languageEnglish
    Pages (from-to)851-857
    Number of pages7
    JournalInternational Journal of Technology
    Volume8
    Issue number5
    DOIs
    Publication statusPublished - 2017 Oct 1

    Fingerprint

    Pressure drop
    Reynolds number
    Refrigerants
    Liquids
    Vapors
    Viscosity
    Microchannels
    Laminar flow
    Propane
    Two phase flow
    Turbulence
    Mass transfer
    Tube
    Environmental issues
    Prediction
    Replacement

    Keywords

    • Microchannel
    • Pressure drop
    • Propane
    • Two-phase flow
    • Viscosity

    ASJC Scopus subject areas

    • Engineering(all)
    • Strategy and Management
    • Management of Technology and Innovation

    Cite this

    Effect of liquid reynolds number on pressure drop of evaporative R-290 in 500μm circular tube. / Novianto, Sentot; Pamitran, Agus S.; Koestoer, Raldi; Oh, Jong Taek; Saito, Kiyoshi.

    In: International Journal of Technology, Vol. 8, No. 5, 01.10.2017, p. 851-857.

    Research output: Contribution to journalArticle

    Novianto, Sentot ; Pamitran, Agus S. ; Koestoer, Raldi ; Oh, Jong Taek ; Saito, Kiyoshi. / Effect of liquid reynolds number on pressure drop of evaporative R-290 in 500μm circular tube. In: International Journal of Technology. 2017 ; Vol. 8, No. 5. pp. 851-857.
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    AU - Saito, Kiyoshi

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