Heat Transfer Performance of Aluminum as a Conductor Material with Mixtures

Öz

With the growing global population, meeting increasing energy demands has become progressively challenging, highlighting the importance of sustainable and eco-friendly energy sources. Energy-related infrastructures—such as thermal piles, buried power cables, and solid or nuclear waste disposal sites—are zones of high-temperature generation. Consequently, there is a critical need for alternative buffer materials capable of mitigating or rapidly dissipating this heat. In this study, a novel buffer material was developed by incorporating aluminum powder, known for its high thermal conductivity, into zeolite-bentonite mixtures at weight ratios of 1%, 2%, and 3%. The experimental results demonstrated that thermal conductivity increased in alignment with literature as the aluminum content rose. For instance, while the thermal conductivity of the pure 95% zeolite - 5% bentonite mixture was 0.749 W/mK, the addition of 3% aluminum increased this value to 0.795 W/mK, representing an enhancement of approximately 6%.

Anahtar Kelimeler

• Thermal conductivity
• Aluminum powder
• Buffer materials

İletken Bir Malzeme Olarak Alüminyumun Karışımlarla Birlikte Isı İletim Performansı

Öz

Artan dünya nüfusu ve bu nüfusun enerji ihtiyacının karşılanmasının giderek zorlaşmaktadır. Enerji kaynaklarının sürdürülebilir ve çevre dostu olması önem kazanmıştır. Enerji yapılarının en temelleri olarak değerlendirilebilecek termal kazıklar, gömülü güç kabloları, katı atık ve nükleer atık depolama alanları yüksek sıcaklıkların oluştuğu alanlar olup, bu nedenle ısının etkisini azaltabilen veya hızla ortadan kaldırabilen alternatif tampon malzemelere ihtiyaç duyulmaktadır. Bu çalışmada, yüksek ısıl iletkenliği ile bilinen alüminyum tozu, zeolit-bentonit karışımlarına ağırlıkça %1, %2 ve %3 oranlarında eklenerek yeni bir tampon malzeme geliştirilmiştir. Deneysel sonuçlar, alüminyum katkısının artmasıyla ısıl iletkenliğin literatürle paralel şekilde arttığını göstermiştir. Örneğin, saf 95zeolit-5bentonit karışımının ısıl iletkenlik değeri 0.749 W/mK iken, %3 alüminyum ilavesi ile bu değer 0.795 W/mK seviyesine yükselerek yaklaşık %6 oranında bir artış sergilemiştir.

Anahtar Kelimeler

• Termal iletkenlik
• Alüminyum tozu
• Tampon malzeme

Kaynakça

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