E3S Web Conf.
Volume 70, 201817th International Conference Heat Transfer and Renewable Sources of Energy (HTRSE-2018)
|Number of page(s)||5|
|Section||Heat Transfer and Heat Exchangers|
|Published online||03 December 2018|
Boiling of a refrigerant of low GWP on the surface with copper microchannels
Kielce University of Technology, Faculty of Mechatronics and Mechanical Engineering, al. 1000-lecia Państwa Polskiego 7, PL-25-314 Kielce, Poland
* Corresponding author: firstname.lastname@example.org
The boiling curves and heat transfer coefficients between the heating surface and fluid were investigated in the paper. Copper samples with horizontal microchannels of rectangular cross-section, variable depth and width were the objects of the study. The following geometrical parameters have been used: microchannel width 0.2; 0.3 and 0.4 mm, depth between 0.2 and 0.5 mm (change every 0.1 mm). Boiling refrigerant was Novec-649 (GWP = 1), and the experiment was performed at atmospheric pressure. Geometrical parameters impact, within a given range of heat flux 3 – 130 kW/m2, on the heat transfer process was determined.
© The Authors, published by EDP Sciences, 2018
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