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Experimental Study on Two-Phase FlowPattern of Air-Mixture of Distilled Waterand 2% Butanol in HorizontalMini Channel |
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| รหัสดีโอไอ | |
| Creator | Eli Kumolosari |
| Title | Experimental Study on Two-Phase FlowPattern of Air-Mixture of Distilled Waterand 2% Butanol in HorizontalMini Channel |
| Contributor | Sudarja, Indarto, Deendarlianto, Hermawan |
| Publisher | Research Administration Division |
| Publication Year | 2567 |
| Journal Title | Science & Technology Asia |
| Journal Vol. | 29 |
| Journal No. | 3 |
| Page no. | 158-165 |
| Keyword | Experimental study, Flow pattern map, Flow pattern, Mini channel, Two-Phaseflow |
| URL Website | https://www.tci-thaijo.org/index.php/SciTechAsia/index |
| Website title | ThaiJo2 |
| ISSN | 2586-9000 |
| Abstract | Two-phase flow occurs in many modern mini-sized objects. The two-phase flow pat-tern plays a crucial role in establishing the convection coefficient (h) for both heat transferand pressure drop (?P). The current research examined the two-phase flow pattern in a trans-parent mini channel with an internal diameter of 1.6 mm. The orientation of the channel washorizontal. The fluids used were air-mixture of distilled water and 2% butanol with the liquidsurface tension value of 46.03 mN/m. Superficial velocities of liquid and gas were variedin the range of 0.033 - 4.935 m/s and 0.066 - 66 m/s, respectively. The flow patterns ob-served were churn, annular, plug-annular, bubbly, and plug. The research also generated aflow pattern map. This map then was compared to those from certain preceding researchers.The findings indicated that the flow pattern map generated in this investigation was onlyconsistent with the one established by Triplett et al. [1] with the exception of the transitionboundary from plug flow and bubbly flow to churn flow. The dissimilarity was predicted dueto the distinct surface tension of liquid employed. These findings contributed to discover theflow pattern characteristics which are applicable to the cooling performance of microelec-tronic cooling system, the efficiency of chemical reaction, etc. |
