Open AccessAnalysis of methods for calculating intra-channel boiling heat transfer in refrigerants
Author(s) -
А. А. Малышев,
O. S. Malinina,
K. F. Kouadio,
И. В. Швецов
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/939/1/012047
Subject(s) - refrigerant , boiling , boiling heat transfer , thermodynamics , heat transfer , mechanics , channel (broadcasting) , materials science , phase (matter) , nucleate boiling , heat transfer coefficient , computer science , heat exchanger , chemistry , physics , computer network , organic chemistry
The paper analyzes and compares methods for calculating heat transfer during boiling of refrigerants in horizontal pipes, as well as works devoted to the study of two-phase flows in minichannels. The main provisions of the comprehensive analysis method based on true phase parameters were formulated. It was found that for all the values of the mass velocity, there is a significant discrepancy in the calculated data, while the method based on the comprehensive analysis provides the best agreement with the experiment. The comprehensive method was tested in relation to the analysis of heat-hydrodynamic processes at boiling in minichannels. Comparison of the calculation results using the method based on true phase parameters with the experimental data showed a good agreement.