Chingulpitak, Sakkarin

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Chingulpitak, Sakkarin
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sakkarin.ch@kmitl.ac.th

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    Item type:Publication,
    Experimental investigation of non-boiling gas-liquid two-phase flow in helically coiled micro-channel
    (2026-05-15)
    Benjawun, Phakkhanan
    ;
    Chingulpitak, Sakkarin
    ;
    Pratuyai, Kritsada
    ;
    Wongwises, Somchai
    ;
    Saisorn, Sira
    The pressure drop (dP) and flow pattern are presented for two-phase flow in a helical micro-scale channel using an SS-304 tube of 1 mm diameter, having an equal coil pitch of 20 mm, and a coil pitch of 20 mm, all under constant surface heat flux situations. A flow visualization study was conducted, revealing various flow patterns, including bubbly flow, slug flow, churn flow, throat-annular flow, and annular flow. Additionally, the results demonstrated a higher pressure drop (dP) during churn flow in the channel.