Experimental Study on Distribution Regions of Flow instability and Boiling Crisis in Parallel Twin Rectangular Channels under High Pressure

Tang Yu; Chen Bingde; Xiong Wanyu; Huang Yanping; Xu Jianjun

doi:10.13832/j.jnpe.2016.02.0060

Volume 37 Issue 2

Feb. 2025

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Tang Yu, Chen Bingde, Xiong Wanyu, Huang Yanping, Xu Jianjun. Experimental Study on Distribution Regions of Flow instability and Boiling Crisis in Parallel Twin Rectangular Channels under High Pressure[J]. Nuclear Power Engineering, 2016, 37(2): 60-64. doi: 10.13832/j.jnpe.2016.02.0060

Citation:

Tang Yu, Chen Bingde, Xiong Wanyu, Huang Yanping, Xu Jianjun. Experimental Study on Distribution Regions of Flow instability and Boiling Crisis in Parallel Twin Rectangular Channels under High Pressure[J]. Nuclear Power Engineering, 2016, 37(2): 60-64. doi: 10.13832/j.jnpe.2016.02.0060

Citation:

Tang Yu, Chen Bingde, Xiong Wanyu, Huang Yanping, Xu Jianjun. Experimental Study on Distribution Regions of Flow instability and Boiling Crisis in Parallel Twin Rectangular Channels under High Pressure[J]. Nuclear Power Engineering, 2016, 37(2): 60-64. doi: 10.13832/j.jnpe.2016.02.0060

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Experimental Study on Distribution Regions of Flow instability and Boiling Crisis in Parallel Twin Rectangular Channels under High Pressure

doi: 10.13832/j.jnpe.2016.02.0060

CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2015-09-28
Rev Recd Date: 2016-03-14

Available Online: 2025-02-15

Abstract

Abstract

An experimental investigation has been made on flow instability and boiling crisis in a 50 mm×2 mm parallel rectangular channels at the pressure of 12~15 MPa. In the experiment, it has been found that the thermal parameter range of boiling crisis was extended, while the flow instability zone was reduced with the increase of pressure and mass velocity. And the boiling crisis curve and flow instability boundary line was drawn in N_pch-N_sub pictures to analyze the effect mechanism of the thermal parameters on distribution regions.
- Parallel rectangular channels,
- Flow instability,
- Boiling crisis,
- Distribution region