ÜÇ KANALLI ISI DEĞİŞTİRİCİDE HİBRİT NANOAKIŞKANIN CEBRİ TAŞINIMA ETKİSİ

Öz

Bilgisayar işlemcilerinin soğutulması, bilgisayarın stabil çalışması ve performansının korunması için önemlidir. Yüksek sıcaklıklar işlemcinin performansını düşürmekte ya da zarar vermektedir. Bu nedenle, hava soğutma sistemleri dışında sıvı soğutma sistemleri de kullanılmaktadır. Sıvı soğutma, ısıyı iletmek için akışkan kullanarak genellikle daha etkili ve sessiz çalışmaktadır. Hibrit nano akışkanlar (HNA) ise bir sistemde mümkün olan ısı transferini artırmak için kullanılmaktadır. Bu çalışmada, bilgisayar işlemcilerinden Intel i7 vb için kullanılan üç kanallı bir ısı değiştirici aracılığıyla HNA’nın zorlanmış akış temelli sistemdeki termal etkileri deneysel olarak incelenmiştir. HNA olarak %0.5 titanyum dioksit (TiO2) + %0.5 silisyum dioksit (SiO2) kullanılmıştır. Model için yapılan düzenek, laminer akışta ve sabit ısı akısı sağlanacak şekilde şartlandırılmıştır. Deneylerde HNA’nın, ısı emici üzerindeki termal etkileri beş farklı akış hızı için senaryolaştırılmıştır. Bununla beraber HNA’nın ve modelin termal yeterliliğini gözlemlemek için Nusselt sayısından yararlanılmıştır. Elde edilen veriler sonucunda HNA hızı 150 mm/s iken ısıl iletiminin %20 arttığı gözlemlenmiştir.

Anahtar Kelimeler

• Hibrit Nanoakışkan
• Zorlanmış Isı Taşınımı
• Laminer Akış
• Titanyum Dioksit
• Silikon Dioksit

EFFECT OF HYBRİD NANOFLUİD ON FORCED CONVECTİON İN THREE-CHANNEL HEAT EXCHANGER

Öz

The cooling of computer processors is vital for maintaining stability and performance. High temperatures can degrade the processor's performance or even cause damage. Therefore, liquid cooling systems are used in addition to air cooling systems. Liquid cooling, which uses a fluid to transmit heat, is generally more effective and quieter. Hybrid nano fluids (HNF) are used to enhance heat transfer in a system. In this study, the thermal effects of HNF in a forced flow-based system were experimentally investigated using a three-channel heat exchanger for computer processors such as Intel i7. A mixture of 0.5% titanium dioxide (TiO2) and 0.5% silicon dioxide (SiO2) was used as HNF. The setup for the model was conditioned for laminar flow and provided a constant heat flux. In the experiments, scenarios were formulated to assess the thermal effects of HNF on the heat absorber for five different flow rates. Additionally, the Nusselt number was utilized to observe the thermal efficiency of both HNF and the model. As a result of the obtained data, it has been observed that thermal conduction increases by 20% when the HNA velocity is 150 mm/s.

Anahtar Kelimeler

• Hybrid Nanofluid
• Forced Convection
• Laminar Flow
• Titanium Dioxide
• Silicon Dioxide

Kaynakça

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