Atomization performance of an atomizer with internal impingement

Muh Rong Wang, Tien-Chu Lin, Teng San Lai, Ing Ren Tseng

Research output: Contribution to journalArticle

7 Citations (Scopus)


This paper describes the atomization performance of a newly designed atomizer with internal impinging mechanisms inside the atomizer. The spray drop size distribution was measured by a Malvern RT-Sizer. Results show that the Sauter mean diameter below 10 μm has been achieved with GLR of 0.14. The minimum mean drop size can be lowered to 4.0μm under a test condition of the liquid pressure and gas pressure of 2.5 bar and 3.5 bar, respectively. This test suggests that extra fine atomization on the liquid phase can be achieved under low pressure conditions using this particular atomizer. Such performance cannot be easily achieved with the conventional nozzle design. Results also show that better atomization performance can be achieved by increasing the internal impinging angle and the orifice diameter. An empirical formula of SMD, in terms of operating conditions and nozzle length scale is also presented in this paper.

Original languageEnglish
Pages (from-to)858-864
Number of pages7
JournalJSME International Journal, Series B: Fluids and Thermal Engineering
Issue number4
Publication statusPublished - 2006 May 15

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Physical and Theoretical Chemistry
  • Fluid Flow and Transfer Processes

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