Preliminary theoretical study of the formation and growth of droplets in nucleating flows

Hasril Hasini, Mohd Zamri Yusoff, Norshah Haffez Shuaib

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper describes the preliminary study for the prediction of the formation and growth of water droplets in wet stages of a steam turbine. Emphasis is given towards the determination of suitable methods of calculation of suspended droplets in superheated steam. The one dimensional calculation is applied to a duct where superheated steam is allowed to supercool instantaneously as it enters the duct. At the same instance the formation of droplet embryos begins and subsequently, if the surrounding condition permits, it will grow by collecting its surrounding molecules. This process continue for a limited range of time and stops when the supercooling drops, at which the droplets can no longer survives and begins to evaporate. The accumulation of water droplets increases the level of wetness inside the duct. This mechanism is extremely important in the design and operation of low pressure steam turbine, in particular for the prediction of wet region within the machine.

Original languageEnglish
Title of host publication10th Asian International Conference on Fluid Machinery, AICFM
Pages751-757
Number of pages7
DOIs
Publication statusPublished - 25 Nov 2010
Event10th Asian International Conference on Fluid Machinery, AICFM - Kuala Lumpur, Malaysia
Duration: 21 Oct 201023 Oct 2010

Publication series

NameAIP Conference Proceedings
Volume1225
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other10th Asian International Conference on Fluid Machinery, AICFM
CountryMalaysia
CityKuala Lumpur
Period21/10/1023/10/10

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All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

Cite this

Hasini, H., Yusoff, M. Z., & Shuaib, N. H. (2010). Preliminary theoretical study of the formation and growth of droplets in nucleating flows. In 10th Asian International Conference on Fluid Machinery, AICFM (pp. 751-757). (AIP Conference Proceedings; Vol. 1225). https://doi.org/10.1063/1.3464924