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Experimental investigation of critical heat flux, pressure drop and heat transfer coefficient for the flow boiling in a horizontal lobed channel with R-123
Journal
Experimental Heat Transfer
ISSN
08916152
Date Issued
2023-01-01
Author(s)
Tank, P. N.
Sridharan, Arunkumar
Prabhu, S. V.
Abstract
The current study investigates the distribution of local heat transfer coefficient, measurement of pressure loss and CHF in a lobed horizontal channel for flow boiling. Lobed channels with different lobed depths of 2.3, 2.0 and 1.25 mm, each having three different channel lengths (400, 600, and 1000 mm), are used for the experiments. The working substance used is R-123 with different mass flux. The heat flux range used is from 14 to 375 kW/m2. Pressure drop, critical heat flux, and local heat transfer coefficients of the lobed channel are compared with corresponding smooth horizontal tubes.
Volume
36
Subjects