Effect of material arrangement pattern on different-mode-interacting boiling in narrow gaps with two liquid supply systems

Tianxi Xie, Yoshio Utaka, Zhihao Chen, Toshiki Hirotani, Shoji Mori

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Different-mode-interacting boiling has been proven to improve the critical heat flux (CHF) inside narrow gaps in a water pool in previous studies. This method expands the area of the wetted region and delays the occurrence of CHF with the irregular movement of the vapor and liquid near the boundary between two thermally different materials with interaction of different boiling modes on the non-uniform conductance plate. In the present study, while retaining the characteristics of this method, further improvement of heat transfer characteristics was investigated. To increase the density of different material boundaries, a new arrangement of low-conductance material with cross-type geometry was adopted. The performance on a horizontally arranged 20 mm square copper surface was compared with those of parallel arrangement and the conventional form. Furthermore, performance under the open forms of narrow gaps to surrounding liquid of 2 sides and 4 sides were examined with gap size and material pitch as parameters. Significant enhancements in CHF are achieved in cross-type arrangements. The maximum CHF of 1140 kW/m2 and 946 kW/m2 with large increases of 83% and 75% were achieved for 4-sides-open and 2-sides-open systems, respectively.

Original languageEnglish
Article number116893
JournalApplied Thermal Engineering
Volume191
DOIs
Publication statusPublished - Jun 5 2021

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

Fingerprint

Dive into the research topics of 'Effect of material arrangement pattern on different-mode-interacting boiling in narrow gaps with two liquid supply systems'. Together they form a unique fingerprint.

Cite this