This paper presents new experimental flow boiling pressure drop results in a microscale tube. The experimental data were obtained under diabatic conditions in a horizontal smooth tube with internal diameter of 2.3 mm. Experiments were performed with R134a as working fluid, mass velocities ranging from 100 to 600 kg/m2s, heat flux ranging from 10 to 55 kW/m2, saturation temperatures of 31 °C, and exit vapor qualities from 0.20 to 0.99. Flow pattern characterization was also performed from images obtained by high-speed filming. Pressure drops up to 48 kPa/m were measured. These data were carefully analyzed and compared against 13 two-phase frictional pressure drop prediction methods, including both macro- and micro-scale methods. Comparisons against these methods based on the data segregated according to flow patterns were also performed. Overall, the method by Cioncolini et al. [1] provided quite accurate predictions of the present database.
Skip Nav Destination
2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4941-5
PROCEEDINGS PAPER
Experimental Investigation of Flow Boiling Pressure Drop of R134a in a Micro-Scale Horizontal Smooth Tube
Cristiano Bigonha Tibiric¸a´,
Cristiano Bigonha Tibiric¸a´
University of Sa˜o Paulo, Sa˜o Carlos, SP, Brazil
Search for other works by this author on:
Gherhardt Ribatski
Gherhardt Ribatski
University of Sa˜o Paulo, Sa˜o Carlos, SP, Brazil
Search for other works by this author on:
Cristiano Bigonha Tibiric¸a´
University of Sa˜o Paulo, Sa˜o Carlos, SP, Brazil
Gherhardt Ribatski
University of Sa˜o Paulo, Sa˜o Carlos, SP, Brazil
Paper No:
IHTC14-22962, pp. 169-177; 9 pages
Published Online:
March 1, 2011
Citation
Tibiric¸a´, CB, & Ribatski, G. "Experimental Investigation of Flow Boiling Pressure Drop of R134a in a Micro-Scale Horizontal Smooth Tube." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 6. Washington, DC, USA. August 8–13, 2010. pp. 169-177. ASME. https://doi.org/10.1115/IHTC14-22962
Download citation file:
12
Views
Related Proceedings Papers
Related Articles
Computational Fluid Dynamics Modeling of Flow Boiling in Microchannels With Nonuniform Heat Flux
J. Heat Transfer (January,2018)
Convective Boiling of R-134a Near the Micro-Macroscale Transition Inside a Vertical Brazed Plate Heat Exchanger
J. Heat Transfer (September,2018)
Investigation of Decisive Mixture Effects in Nucleate Boiling of
Binary Mixtures Using a Theoretical Model
J. Heat Transfer (December,2003)
Related Chapters
Extended-Surface Metallurgy
Heat Exchanger Engineering Techniques
Thermal Design Guide of Liquid Cooled Systems
Thermal Design of Liquid Cooled Microelectronic Equipment
Scope of Section I, Organization, and Service Limits
Power Boilers: A Guide to the Section I of the ASME Boiler and Pressure Vessel Code, Second Edition