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KANATLI BİR BORU ETRAFINDAKİ FAZ DEĞİŞİMİ

PHASE CHANGE AROUND A FINNED TUBE

Journal Name:

  • Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi

Publication Year:

  • 2003

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
This study presents the heat transfer enhancement in the thermal energy storage system by using radially finned tube. The solution of the system consists of the solving the equations of the heat transfer fluid (HTF), the pipe wall and fin, and the phase change material (PCM) as one domain. The control volume finite difference approach and the semi implicit solver (SIS) are used to solve the equations. Fully developed velocity distribution is taken in the HTF. Flow parameters (Re number and inlet temperature of coolant) and fin parameters (the number of fins, fin length, fin thickness) are found to influence solidification fronts and the total stored energy
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Abstract (Original Language): 
Bu çalışmada, bir ısıl enerji depolama sisteminde radyal kanatlı boru kullanılmasıyla ısı transferinde yaratılan artış incelenmiştir. Sistemin çözümü, ısı transfer akışkanı (ITA), boru duvarı ve kanat ve faz değişim malzemesi (FDM) için yazılan denklemlerin bir bütün olarak çözümünü içerir. Bu denklemlerin çözümü için kontrol hacmi sonlu fark yaklaşımı ile yarı kapalı çözücü (SIS) kullanılmıştır. Isı transfer akışkanı içinde tam gelişmiş hız dağılımı alınmıştır. Akış parametreleri (Re sayısı ve soğutkanın giriş sıcaklığı) ve kanat parametrelerinin (kanat sayısı, kanat uzunluğu ve kanat kalınlığı) katılaşma eğrisi ve toplam depolanan enerjiye etkisi bulunmuştur.
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REFERENCES

References: 

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Mühendislik Bilimleri Dergisi 2003 9 (1) 15-21
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Journal of Engineering Sciences 2003 9 (1) 15-21
Phase Change Around A Finned Tube, A. Erek
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Zhang, Y. and Faghri, A. 1996. Analytical Solution of Thermal Energy Storage System With Conjugate Laminar Forced Convection. Int. J. Heat Mass Transfer, 39, 717-724.

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