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RADYAL KANATLI BORU ÇEVRESİNDE FAZ DEĞİŞİMİ İLE ENERJİ DEPOLANMASI

ENERGY STORAGE BY PHASE CHANGE AROUND RADIALLY FINNED TUBES

Journal Name:

  • Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi

Publication Year:

  • 2003

Key Words:

Keywords (Original Language):

Author NameUniversity of Author
Abstract (2. Language): 
In this study, energy storage by phase change around a radially finned tube with a constant wall temperature is investigated numerically. The solution of the system includes the solution of the governing equations for the heat transfer fluid (HTF), pipe wall & fins and the phase change material (PCM). Control volume finite difference approach and semi implicit scheme are used to discretize the system of equations. Numerical simulations are performed to investigate the effect of several fin parameters (fin spacing, fin thickness, fin diameter) and tube wall temperature. The effect of each variable to energy storage and amount of solidification are presented graphically and related equations are given. Optimum system design for the most effective energy storage may be obtained with the use of given results.
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Abstract (Original Language): 
Bu çalışmada, iç yüzeyi sabit sıcaklıkta olan radyal kanatlı bir boru çevresinde faz değişimi ile enerji depolanması sayısal olarak incelenmiştir. Sistemin çözümü, ısı transfer akışkanı (ITA), boru duvarı & kanat, ve faz değişim malzemesi (FDM) için elde edilen eşitliklerin bir bütün olarak çözülmesini içerir. Bu eşitliklerin çözülmesinde kontrol hacmi sonlu farklar yaklaşımı ve yarı kapalı çözücü (SIS algaritması) kullanılmıştır. Farklı kanat parametreleri ( kanat aralığı, kanat kalınlığı, kanat çapı ) ve farklı yüzey sıcaklığı için sayısal çözümlemeler elde edilmiştir. Her bir değişkenin depolanan enerjiye, katılaşma miktarına olan etkileri grafik olarak gösterilmiş ve bunlarla ilgili bağıntılar elde edilmiştir. Elde edilen sonuçların kullanımı ile, enerji depolama açısından en uygun sistem tasarımı yapılabilmektedir.
FULL TEXT (PDF): 
PDF icon arastirmax-radyal-kanatli-boru-cevresinde-faz-degisimi-ile-enerji-depolanmasi.pdf
  • 2
61-71
  • Turkish

REFERENCES

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