Computational Analysis of Droplet Mass and Size Effect on MistAir Impingement Cooling Performance
Joint Authors
Xu, Tianshuang
Li, Junlou
Xu, Tao
Yu, Zhenglei
Yoshino, Tatsuo
Source
Advances in Mechanical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-20
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Impingement cooling has been widely employed to cool gas turbine hot components such as combustor liners, combustor transition pieces, turbine vanes, and blades.
A promising technology is proposed to enhance impingement cooling with water droplets injection.
However, previous studies were conducted on blade shower head film cooling, and less attention was given to the transition piece cooling.
As a continuous effort to develop a realistic mist impingement cooling scheme, this paper focuses on simulating mist impingement cooling under typical gas turbine operating conditions of high temperature and pressure in a double chamber model.
Furthermore, the paper presents the effect of cooling effectiveness by changing the mass and size of the droplets.
Based on the heat-mass transfer analogy, the results of these experiments prove that the mass of 3E-3 kg/s droplets with diameters of 5–35 μm could enhance 90% cooling effectiveness and reduce 122 K of wall temperature.
The results of this paper can provide guidance for corresponding experiments and serve as the qualification reference for future more complicated studies with convex surface cooling.
American Psychological Association (APA)
Yu, Zhenglei& Xu, Tao& Li, Junlou& Xu, Tianshuang& Yoshino, Tatsuo. 2013. Computational Analysis of Droplet Mass and Size Effect on MistAir Impingement Cooling Performance. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-452458
Modern Language Association (MLA)
Yu, Zhenglei…[et al.]. Computational Analysis of Droplet Mass and Size Effect on MistAir Impingement Cooling Performance. Advances in Mechanical Engineering No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-452458
American Medical Association (AMA)
Yu, Zhenglei& Xu, Tao& Li, Junlou& Xu, Tianshuang& Yoshino, Tatsuo. Computational Analysis of Droplet Mass and Size Effect on MistAir Impingement Cooling Performance. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-452458
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-452458