Numerical Analysis of Water Flow Boiling Characteristics within Vertical Rectangular Thin Channels

Abstract:

In this paper, water flow boiling characteristics within vertical rectangular thin channels were numerical analyzed. By the method of numerical simulation, the isolation bubbly stream flow patterns adapt to the non-restricted and restricted thin channel were obtained and the influence of channel-scale on the boiling flow pattern characteristics are analyzed. Study shown that the system pressure drop is increased with the decrease of the channel width; the heat transfer coefficient shows a decreasing trend after the first increase along with the increasing dryness; the decline of channel scale will lead to increasing of the average heat transfer coefficient.

• Periodical: Advanced Materials Research (Volumes 655-657)
• Pages: 154-157
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.655-657.154
• Online since: January 2013
• Authors: Yan Chen, Shusheng Zhang, Ye Lu
• Keywords: Bubble Motion, Flow Boiling, Numerical Simulation, Thin Channel

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