Suriyawong, Adirek

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Preferred name
Suriyawong, Adirek
Alternative Name
Suriyawong, A.
Main Affiliation
Email
adirek.su@kmitl.ac.th

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    Item type:Publication,
    Two-phase heat transfer behaviors of r-134a refrigerant and air-water mixture in A 1 MM internal diameter tube
    (2016-01-01)
    Saisorn, Sira
    ;
    Wongwises, Somchai
    ;
    Wongpromma, Pakorn
    ;
    Benjawun, Phakkhanan
    ;
    Suriyawong, Adirek
    Flow boiling of R-134a refrigerant was experimentally conducted in a test section which is a stainless steel tube having internal diameter of 1 mm. The DC power supply was connected to the test section to provide constant surface heat flux conditions. Flow pattern and heat transfer data were obtained for a mass flux range of 252-820 kg/m2s, a heat flux range of 1-21 kW/m2 and a saturation pressure of 8 bar. The flow visualization results showed four different flow patterns including slug flow, throat-Annular flow, churn flow, and annular flow. The flow boiling heat transfer behaviors were also compared with those based on non-boiling two-phase air-water flow in the same test section under constant surface heat flux conditions. For non-boiling two-phase flow experiment, an airwater T-shaped mixer was served to introduce fluids smoothly along the test section. The results indicated that based on the same gas and liquid Reynolds numbers, flow boiling tends to have Nusselt number higher than that for non-boiling gas-liquid flow.
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    Experimental investigation on flow pattern and void fraction for two-phase gas-liquid upflow in a vertical helically coiled micro-channel
    (2025-03-01)
    Saisorn, Sira
    ;
    Benjawun, Phakkhanan
    ;
    Suriyawong, Adirek
    ;
    Wongwises, Somchai
    To contribute toward state-of-the-art microfluidic technology, our experiments were conducted to study gas-liquid adiabatic upflow phenomena in a helical micro-channel having a channel diameter of 0.87 mm, a coil diameter of 50 mm, and a helical pitch of 20 mm. The presence of centrifugal acceleration in the micro-scale flow is given as follows. The unique flow pattern having the throat-like gas-core flow generally detected in the straight micro-tube was still present in the curved test section. The void fraction characteristics were not able to match with the homogeneous flow model. The slip ratio data explicitly showed that the annular flow tended to be highly affected by the secondary flow when compared to the throat-annular flow. The prediction based on different approaches indicated that the data aligned well with drift flux model incorporating inertia and channel orientation effects.
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    Two-phase flow structures in a helically coiled microchannel: An experimental investigation
    (2023-10-01)
    Saisorn, Sira
    ;
    Benjawun, Phakkhanan
    ;
    Suriyawong, Adirek
    ;
    Asirvatham, Lazarus Godson
    ;
    Mondal, Pranab Kumar
    At the microfluidic scale, the utilization of helically coiled channels (HCCs), also known as a spiral channel, for two-phase flow offers numerous advantages in various applications. Existing articles mainly focus on the macro-scale transport, examining secondary flows induced in curved channels. The increasing demand, however, for innovative miniature equipment for thermal energy management emphasizes the importance of comprehending gas-liquid micro-scale flow in curved channels. Unfortunately, despite a vast body of literature on this paradigm, there is still a lack of systematic investigations into the underlying facets of two-phase micro-scale transport in HCCs. To address this gap, our study conducted experiments on adiabatic two-phase air-water flow inside an up-flow helical micro-scale tube. The tube had a hydraulic diameter of 0.87 mm, a coil diameter of 50 mm, and a helical pitch of 20 mm. The primary aim was to explore the impact of centrifugal force on flow pattern, void fraction, and frictional pressure drop characteristics. Additionally, we carefully examined the phase separation phenomenon influenced by the secondary flows induced by the curved channel. In particular, we compared the gas-core flow pattern (either throat-annular flow or annular flow), void fraction, and frictional pressure drop obtained from our experiments on the helical tube with corresponding results based on straight micro-scale channel configurations for an Eötvös number of approximately 0.01. In summary, this study delves deep into the crucial aspects of two-phase micro-scale transport in HCCs, contributing to a better understanding of these systems for future advancements in micro-channel applications.