Micro-explosion of a water-in-hexadecane compound drop

Wei Dong Hsieh, Rong Horng Chen, Cheng Wen Chen, Sheng Lin Chiu, Ta-Hui Lin

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The micro-explosion of a water-in-oil compound drop, without emulsification, was investigated experimentally. The compound drop, composed of a water core encased by an n-hexadecane shell, was suspended and heated to micro-explosion. The heating process and the micro-explosion behavior were recorded by a high-speed video system, and the temperature history of the compound drop was measured under three ambient temperatures, namely 320°C, 400°C and 500°C. The behaviors of the micro-explosion were grouped into three modes, namely direct explosion, partial explosion, and swelling, according to the outcomes of micro-explosion recorded by the high-speed video camera. At an ambient temperature of 400°C or 500°C, the micro-explosion onset time was observed to increase with the micro-explosion temperature; but this trend was not as obvious for the ambient temperature of 320°C. The intensity, judged from the production of secondary drops, of the micro-explosion rose as the micro-explosion time lengthened because the accumulation of thermal energy within the oversaturated water core drop grew to a higher extent.

Original languageEnglish
Pages (from-to)579-587
Number of pages9
JournalJournal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an
Volume35
Issue number5
DOIs
Publication statusPublished - 2012 Jul 1

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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