Farklı gözenekli taşların efektif ısıl iletim katsayısı

Objective & Hypothesis:This study was carried out to investigate the theoretical and experimental results of effective thermal conductivity of porous building stones. in the theoretical part of study, the mathematical model was developed for the calculation of effective thermal conductivity of porous stones. in this model, the random and complex geometric shape porous in stone was accepted as the cubic form, and total volumetric wideness of porous in the stone was taken as the porosity parameter.

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Key Findings & Data:For the calculation of the porosity parameter, the density method was used to solve the problem.

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Conclusion & Impact:The results were compared with the other conventional building material.

🔬Design:Modeling & Simulation

📍Scope:Comprehensive Sample

⚙️Variables:Domain Parameters

Abstract

This study was carried out to investigate the theoretical and experimental results of effective thermal conductivity of porous building stones. in the theoretical part of study, the mathematical model was developed for the calculation of effective thermal conductivity of porous stones. in this model, the random and complex geometric shape porous in stone was accepted as the cubic form, and total volumetric wideness of porous in the stone was taken as the porosity parameter. For the calculation of the porosity parameter, the density method was used to solve the problem. The equation derived was then applied to some eight different stones that were vvidely used in the construction industry of the southeast region of Turkey for predicting thermal conductivities. it was shown that theoretical and experimental values are agreeable. Each sample of stones from two different sources was taken. Their chemical composition, thermal conductivities, specific heat capacities, water absorption properties and mechanical strengths were determined. The results were compared with the other conventional building material.

Özet

Bu çalışma gözenekli bina taşlarının efektif ısı iletim katsayılarını teorik ve deneysel olarak incelemek için yapıldı. Çalışmanın teorik kısmında gözenekli taşların efektif ısı iletim katsayılarını hesaplamak için matematiksel model geliştirildi. Bu modelde taş içindeki gelişigüzel ve kompleks geometrik şekilli gözenekler kübik form olarak kabul edildi ve taş içindeki gözeneklerin toplam hacimsel genişliği gözeneklilik parametresi olarak alındı. Gözeneklilik parametresinin hesaplanması için yoğunluk metodu kullanıldı. Geliştirilen denklem Türkiye'nin güneydoğusunda yapı endüstrisinde çok fazla kullanılan sekiz farklı yöre taşının termal iletkenliğini belirlemek için uygulandı. Geliştirilen denklemin verdiği değerler ile deneysel değerlerin uyum içerisinde olduğu görüldü. Deneysel çalışmada kullanılan taşların her bir türü için iki farklı kaynaktan örnekler alındı. Bu örneklerin kimyasal bileşimi, ısıl iletkenliği, özgül ısı kapasiteleri, su emme özellikleri ve mekanik dayanımları tespit edildi. Sonuçlar diğer yapı malzemeleri ile karşılaştırıldı.

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Cite This Article

DEVECİOĞLU, A., BİÇER, Y., AKPINAR, K. E. (2022). Farklı gözenekli taşların efektif ısıl iletim katsayısı. Fırat Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 15 - Sayı: 4, 613–622. https://ajindex.com/articles/513686

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