GÖZENEKLİ MALZEMELERİN ETKEN ISIL İLETKENLİKLERİ ÜZERİNE MEVCUT ÇALIŞMALAR

Yıl 2010, Cilt: 25 Sayı: 2, 0 - , 15.02.2013

Numan Yüksel Atakan Avcı

Öz

Bu çalışmada, gözenekli maddelerin etken ısıl iletkenliğinin modellenmesine ve/veya tahminine yönelikliteratürde mevcut çalışmalar incelenmiştir. Bu çalışmalar, literatürde tespit edilen ve farklı uygulamalarıkapsayan bazı deneysel sonuçlar dikkate alınarak analiz edilmiştir. Sonuçlar tablo halinde verilmiş ve modeller,uygulanabilirlik aralığı, kullanım kolaylığı ile değişik parametrelerin etkileri açısından değerlendirilmiştir.Sonuçta genel olarak kullanılabilecek bağıntılar elde etmek yerine belirli yapılarda ve belirli gözeneklilikaralığında sınırlı bir hata töleransı ile kullanılabilecek bağıntıları seçmenin önem kazandığı ve özellikle yükseksıcaklığın etken ısıl iletkenliğine etkisinin çalışılması gerektiği sonucuna varılmıştır.

Anahtar Kelimeler

Isıl iletkenlik, gözenekli malzeme, matematik model.

Kaynakça

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