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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Kim, M. H. Shin, J. S. Huh, C. Kim, T. J. Seo, K. W. |
| Copyright Year | 2003 |
| Abstract | This paper reviews recent Korean studies of flow characteristics, flow boiling, and flow condensation in micro- and mini-channels. The characteristics of local heat transfer and pressure drops were experimentally investigated using condensing R134a two-phase flow, in a single round tube, with an inner diameter of 0.691 mm. New experimental techniques were developed to measure the condensation heat transfer coefficient. Tests were performed for a mass flux of 100 to 600 kg/m2s, a heat flux of 5 to 20 kW/m2, and a saturation temperature of 40°C. The experimental local condensation heat transfer coefficients and two-phase frictional pressure gradients are shown. Comparisons of experimental data with existing models reveal that the correlations failed to predict the present data. This study contains the unique sub-millimeter-diameter, single round tube, condensation data reported in the literature. |
| Sponsorship | Nanotechnology Institute |
| Starting Page | 47 |
| Ending Page | 58 |
| Page Count | 12 |
| File Format | |
| ISBN | 0791836673 |
| DOI | 10.1115/ICMM2003-1006 |
| Volume Number | 1st International Conference on Microchannels and Minichannels |
| Conference Proceedings | ASME 2003 1st International Conference on Microchannels and Minichannels |
| Language | English |
| Publisher Date | 2003-04-24 |
| Publisher Place | Rochester, New York, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Temperature Pressure drop Two-phase flow Pressure gradient Condensation Flow (dynamics) Heat transfer coefficients Boiling Heat transfer Heat flux |
| Content Type | Text |
| Resource Type | Article |
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