Numerical Investigation of a Liquid-Gas Ejector Used for Shipping Ballast Water Treatment
Joint Authors
Song, Xueguan
Cao, Wenping
Kang, Sanghoon
Shin, Wonhyup
Cao, Maosen
Park, Young-Chul
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-04
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Shipping ballast water can have significant ecological and economic impacts on aquatic ecosystems.
Currently, water ejectors are widely used in marine applications for ballast water treatment owing to their high suction capability and reliability.
In this communication, an improved ballast treatment system employing a liquid-gas ejector is introduced to clear the ballast water to reduce environmental risks.
Commonly, the liquid-gas ejector uses ballast water as the primary fluid and chemical ozone as the secondary fluid.
In this study, high-pressure water and air, instead of ballast water and ozone, are considered through extensive numerical and experimental research.
The ejector is particularly studied by a steady three-dimensional multiphase computational fluid dynamics (CFD) analysis with commercial software ANSYS-CFX 14.5.
Different turbulence models (including standard k-ε, RNG k-ε, SST, and k-ω) with different grid size and bubble size are compared extensively and the experiments are carried out to validate the numerical design and optimization.
This study concludes that the RNG k-ε turbulence model is the most efficient and effective for the ballast water treatment system under consideration and simple change of nozzle shape can greatly improve the ejector performance under high back pressure conditions.
American Psychological Association (APA)
Song, Xueguan& Cao, Maosen& Shin, Wonhyup& Cao, Wenping& Kang, Sanghoon& Park, Young-Chul. 2014. Numerical Investigation of a Liquid-Gas Ejector Used for Shipping Ballast Water Treatment. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-458206
Modern Language Association (MLA)
Song, Xueguan…[et al.]. Numerical Investigation of a Liquid-Gas Ejector Used for Shipping Ballast Water Treatment. Mathematical Problems in Engineering No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-458206
American Medical Association (AMA)
Song, Xueguan& Cao, Maosen& Shin, Wonhyup& Cao, Wenping& Kang, Sanghoon& Park, Young-Chul. Numerical Investigation of a Liquid-Gas Ejector Used for Shipping Ballast Water Treatment. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-458206
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458206