TY - GEN
T1 - An improved correlation for void fraction during in-tube condensation
AU - Guo, Cong
AU - Wang, Tao
AU - Jiang, Yuyan
AU - Guo, Chaohong
AU - Zeng, Miao
AU - Yu, Dong
AU - Tang, Dawei
N1 - Publisher Copyright:
Copyright © 2015 by ASME.
PY - 2015
Y1 - 2015
N2 - A comprehensive literature research was undertaken for the available void fraction correlations and experimental void fraction data during condensation inside tubes. Comparisons between the correlations showed that slip ratio models were probably more suitable for the determination of void fraction at low mass velocity when the slip ratio was chosen appropriately. For high mass velocity, there was no apparent difference for the predictions of various models. In addition, the Froude rate parameter (dimensionless number) can be used for representing the flow characteristics during condensation inside tube and was defined in terms of mass flux and quality. Based on the observations made, a new correlation was developed through the weighted average method without resorting back to very complex expressions. This correlation was a simple model and obtained involving with the Froude rate parameter and slip ratio models. The improved correlation has been shown to be in good agreement with data ranging from low mass velocity up to very high mass velocity.
AB - A comprehensive literature research was undertaken for the available void fraction correlations and experimental void fraction data during condensation inside tubes. Comparisons between the correlations showed that slip ratio models were probably more suitable for the determination of void fraction at low mass velocity when the slip ratio was chosen appropriately. For high mass velocity, there was no apparent difference for the predictions of various models. In addition, the Froude rate parameter (dimensionless number) can be used for representing the flow characteristics during condensation inside tube and was defined in terms of mass flux and quality. Based on the observations made, a new correlation was developed through the weighted average method without resorting back to very complex expressions. This correlation was a simple model and obtained involving with the Froude rate parameter and slip ratio models. The improved correlation has been shown to be in good agreement with data ranging from low mass velocity up to very high mass velocity.
UR - http://www.scopus.com/inward/record.url?scp=84979966810&partnerID=8YFLogxK
U2 - 10.1115/ICNMM2015-48251
DO - 10.1115/ICNMM2015-48251
M3 - Conference contribution
AN - SCOPUS:84979966810
T3 - ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2015, collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems
BT - ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2015, collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems
PB - American Society of Mechanical Engineers
T2 - ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2015, collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems
Y2 - 6 July 2015 through 9 July 2015
ER -