Thermodynamic analysis of the transition between slug and annular flow in minichannels

Dolaana M. Khovalyg; Predrag S. Hrnjak; Anthony M. Jacobi

doi:10.1115/ICNMM2015-48555

Thermodynamic analysis of the transition between slug and annular flow in minichannels

Dolaana M. Khovalyg, Predrag S. Hrnjak, Anthony M. Jacobi

Mechanical Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Heat transfer mechanism during flow boiling of fluids in small channels differs significantly depending on whether two-phase flow is in slug or annular regime. Understanding of the transition conditions between homogeneous slug flow and annular two-phase flow is an important topic for mini-and microchannel heat exchangers performance optimization. The current study focuses on the analysis of thermodynamic equilibrium conditions of two neighboring two-phase flow regimes. In both flow patterns the total energy is equal at specific mass flux and vapor quality and those values can be used to mark the transition conditions.

Original language	English (US)
Title of host publication	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
Publisher	American Society of Mechanical Engineers
ISBN (Electronic)	9780791856871
DOIs	https://doi.org/10.1115/ICNMM2015-48555
State	Published - 2015
Event	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 - San Francisco, United States Duration: Jul 6 2015 → Jul 9 2015

Publication series

Name	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

Other

Other	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
Country/Territory	United States
City	San Francisco
Period	7/6/15 → 7/9/15

ASJC Scopus subject areas

Process Chemistry and Technology

Online availability

10.1115/ICNMM2015-48555

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Khovalyg, D. M., Hrnjak, P. S., & Jacobi, A. M. (2015). Thermodynamic analysis of the transition between slug and annular flow in minichannels. In 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 (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). American Society of Mechanical Engineers. https://doi.org/10.1115/ICNMM2015-48555

Thermodynamic analysis of the transition between slug and annular flow in minichannels. / Khovalyg, Dolaana M.; Hrnjak, Predrag S.; Jacobi, Anthony M.
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. American Society of Mechanical Engineers, 2015. (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).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Khovalyg, DM, Hrnjak, PS & Jacobi, AM 2015, Thermodynamic analysis of the transition between slug and annular flow in minichannels. in 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. 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, American Society of Mechanical Engineers, 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, San Francisco, United States, 7/6/15. https://doi.org/10.1115/ICNMM2015-48555

Khovalyg DM, Hrnjak PS, Jacobi AM. Thermodynamic analysis of the transition between slug and annular flow in minichannels. In 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. American Society of Mechanical Engineers. 2015. (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). doi: 10.1115/ICNMM2015-48555

Khovalyg, Dolaana M. ; Hrnjak, Predrag S. ; Jacobi, Anthony M. / Thermodynamic analysis of the transition between slug and annular flow in minichannels. 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. American Society of Mechanical Engineers, 2015. (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).

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abstract = "Heat transfer mechanism during flow boiling of fluids in small channels differs significantly depending on whether two-phase flow is in slug or annular regime. Understanding of the transition conditions between homogeneous slug flow and annular two-phase flow is an important topic for mini-and microchannel heat exchangers performance optimization. The current study focuses on the analysis of thermodynamic equilibrium conditions of two neighboring two-phase flow regimes. In both flow patterns the total energy is equal at specific mass flux and vapor quality and those values can be used to mark the transition conditions.",

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Thermodynamic analysis of the transition between slug and annular flow in minichannels

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