THERMAL SCIENCE

International Scientific Journal

INVESTIGATION OF FLOW BOILING HEAT TRANSFER CHARACTERISTIC OF MIXTURE REFRIGERANT L-41B IN A HORIZONTAL SMOOTH TUBE

ABSTRACT
The saturated flow boiling heat transfer characteristics of L-41b, R1234ze(E)/R32 (27/73 mass%), inside an 8 mm ID horizontal tube were investigated. The experiment were carried out at the saturation temperature of 10 to 20°C with heat flux ranging from 5 to 10 kW/m2 and mass flux ranging from 200-500 kg/m2s. The influence of mass flux, heat flux, and quality on the heat transfer coefficients were examined and discussed. The experimental data of local heat transfer coefficients were compared with four well-known correlations available in literatures. Additionally, a new vapour-phase multiplier correlation to predict the local heat transfer coefficients of L-41b flow boiling inside smooth tubes was developed. The results show that the deviations of the new correlation are within –24.98% to +14.68% to the experimental data and that the 95% prediction values are within ±15%.
KEYWORDS
PAPER SUBMITTED: 2018-01-15
PAPER REVISED: 2018-05-09
PAPER ACCEPTED: 2018-05-13
PUBLISHED ONLINE: 2018-05-20
DOI REFERENCE: https://doi.org/10.2298/TSCI180115154Q
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Issue 6, PAGES [2835 - 2846]
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© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence