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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/11598
Title: Flow boiling heat transfer characteristics of R407C inside a smooth tube with different tube inclinations
Authors: Kundu A.
Kumar R.
Gupta, Akhilesh Kumar
Published in: Energy Economics
Abstract: This paper presents the results of experimental investigations carried out with refrigerant R407C during flow boiling inside a smooth tube of inside diameter 7.0mm at different tube inclinations. The experiments included five different tube inclination angles from 0° to 90° of the direction of refrigerant flow. The test runs were carried out at inlet temperature range of 6°C to 9°C, refrigerant mass velocities from 100 to 300kgm-2s-1 and heat fluxes between 3 and 6kWm-2. The average quality of boiling refrigerant was between 0.1 and 0.9. The influences of the above parameters on the boiling heat transfer coefficient with tube inclinations are presented. The heat transfer coefficients predicted by some available models and correlations in the open literature are compared with the present data. An empirical correlation has also been developed to predict the heat transfer coefficient of R407C during flow boiling inside an inclined plain tube. © 2014 Elsevier Ltd and IIR.
Citation: Energy Economics (2014), 45(): 1-12
URI: https://doi.org/10.1016/j.ijrefrig.2014.06.009
http://repository.iitr.ac.in/handle/123456789/11598
Issue Date: 2014
Publisher: Elsevier
Keywords: Flow boiling
Heat transfer coefficient
Inclined
R407C
Refrigerants
Smooth tube
ISSN: 1409883
Author Scopus IDs: 56185792100
55389796000
55491955100
Author Affiliations: Kundu, A., Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India
Kumar, R., Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India
Gupta, A., Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India
Funding Details: The financial support for this research by the Institute Fund is gratefully acknowledged.
Corresponding Author: Kundu, A.; Mechanical and Industrial Engineering, Indian Institute of TechnologyIndia
Appears in Collections:Journal Publications [ME]

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