Study on the Intervascular Two-Phase Flow Characters of Horizontal-Tube Falling Film Evaporator

Abstract:

In this paper, the mathematical model of a horizontal-tube falling film evaporator that used in air condition and refrigeration system was founded. The evaporative tubes of the evaporator were cold and staggered arrangement. The numerical simulation of the intervascular flow of the oil-bearing refrigerant R134a was carried out, under the conditions of varies flow mode and varies structures of distributed equipment. Under the standard condition of air conditioning, the study of the intervascular two-phase flow characters of the horizontal-tube falling film evaporator were analyzed in the last. The research achievements can provide theoretical laws for relief the effects of the intervascular vapor shear stress on the quality of the liquid film formed outside the evaporative tubes. And the conclusions have practical and guide means for the horizontal-tube falling film evaporator design and evaporative tubes arrangement optimization.

• Periodical: Advanced Materials Research (Volumes 516-517)
• Pages: 208-211
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.516-517.208
• Online since: May 2012
• Authors: Ji You Fei, Qi Chao Guo, Hua Li, Ran Deng
• Keywords: Horizontal-Tube Falling Film Evaporator, Liquid Film, Numerical Simulation, Two-Phase Flow

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