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Keywords: condensation
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Proceedings Papers

Proc. ASME. ICNMM2020, ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels, V001T03A002, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2020-1052
... Abstract This paper presents experimental condensation characteristics of R134a inside two three-dimensional enhanced heat transfer tubes (1EHT1 and 3EHT) and one equivalent smooth tube. The 1EHT1 tube has the primary elliptical dimples and secondary petal arrays, and the 3EHT tube has...
Proceedings Papers

Proc. ASME. ICNMM2020, ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels, V001T03A001, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2020-1033
... Abstract In this paper, the condensation heat transfer characteristics of R134a inside enhanced tubes using two type of surface structures with different materials was investigated, which were then compared with plain tubes under the same test conditions. The enhanced tubes were: 1EHTa tube...
Proceedings Papers

Proc. ASME. ICNMM2020, ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels, V001T16A007, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2020-1070
... Abstract Steam flow condensation has a wide range of applications in the industry such as in air conditioning, refrigeration, and thermal power plants. Condensation of steam on highly hydrophobic surfaces has resulted in notable heat transfer improvement compared to conventional hydrophilic...
Proceedings Papers

Proc. ASME. ICNMM2010, ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels: Parts A and B, 973-978, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30202
... The model of two phases of liquid and vapor flow and vapor condensation under the condition of exerted force was established in parallel nanochannel. Fluid was water molecular and the solid walls are composed of Pt atoms. The process of vapor condensation in nanochannel wall was simulated...
Proceedings Papers

Proc. ASME. ICNMM2006, ASME 4th International Conference on Nanochannels, Microchannels, and Minichannels, Parts A and B, 641-647, June 19–21, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2006-96226
... 15 09 2008 During condensation of R134a the flow patterns inside two three-dimensional (3-D) micro-fin tubes with different fin geometries were investigated. The flow patterns and their transitions were visibly observed and recorded. The experimental findings revealed the following...