Experimental study on the effect of using metallic brushes on the charging and discharging time of thermal energy storage unit
Other Title(s)
دراسة عملية على تأثير استخدام فرش معدنية على المادة المتغيرة الطور الخازنة للطاقة
Joint Authors
Hasan, Rafi Abbas
Kazim, Ban Muhammad Hasan
Shyaa, Asil Khalil
Source
Issue
Vol. 21, Issue 9 (30 Sep. 2015), pp.1-15, 15 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2015-09-30
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Topics
Abstract EN
Phase change materials are known to be good in use in latent heat thermal energy storage (LHTES) systems, but one of their drawbacks is the slow melting and solidification processes.
So that, in this work, enhancing heat transfer of phase change material is studied experimentally for in charging and discharging processes by the addition of high thermal conductive material such as copper in the form of brushes, which were added in both PCM and air sides.
The additions of brushes have been carried out with different void fractions (97%, 94% and 90%) and the effect of four different air velocities was tested.
The results indicate that the minimum brush void fraction gave the maximum heat transfer in PCM and reduced the time for melting for (ϵ=90%) up to 4.49 times as compare with the case of no brush.
It can be seen that the addition of brushes in air side helped to reduce the solidification time and increase the convection heat transfer coefficient as the brush void fraction decreased.
Also the minimum velocity (v = 1 m/s) gave maximum outlet temperature.
American Psychological Association (APA)
Hasan, Rafi Abbas& Shyaa, Asil Khalil& Kazim, Ban Muhammad Hasan. 2015. Experimental study on the effect of using metallic brushes on the charging and discharging time of thermal energy storage unit. Journal of Engineering،Vol. 21, no. 9, pp.1-15.
https://search.emarefa.net/detail/BIM-622900
Modern Language Association (MLA)
Hasan, Rafi Abbas…[et al.]. Experimental study on the effect of using metallic brushes on the charging and discharging time of thermal energy storage unit. Journal of Engineering Vol. 21, no. 9 (Sep. 2015), pp.1-15.
https://search.emarefa.net/detail/BIM-622900
American Medical Association (AMA)
Hasan, Rafi Abbas& Shyaa, Asil Khalil& Kazim, Ban Muhammad Hasan. Experimental study on the effect of using metallic brushes on the charging and discharging time of thermal energy storage unit. Journal of Engineering. 2015. Vol. 21, no. 9, pp.1-15.
https://search.emarefa.net/detail/BIM-622900
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 9-15
Record ID
BIM-622900