NANOAKIŞKANLARDA KARARLILIĞIN ISI TRANSFERİNİ İYİLEŞTİRME AÇISINDAN ÖNEMİ

Yıl 2018, Cilt: 7 Sayı: 2, 880 - 898, 20.07.2018

Fevzi Şahin , Lütfü Namlı

https://doi.org/10.28948/ngumuh.445339

Cited By: 3

Öz

Son
yıllarda ısı transferini iyileştirme çalışmalarının nano boyutlardaki
parçacıkların etkisi ile oluşturulan nanoakışkanlar üzerinde yoğunlaştığı
görülmektedir. Nanoakışkanların ısı transferini artırdığını gösteren birçok
çalışma bulunmasına rağmen geleneksel ısı transfer akışkanlarının yerini
almasının önünde birçok engel bulunmaktadır. Bunlardan en önemlisi nanoakışkanlarda
kararlılık konusudur. Bu konuda yapılan çalışmalar arasındaki çelişkiler,
nanoakışkanlara bakış açısının değiştirilmesi gerektiği sonucunu ortaya
koymaktadır. Nanoakışkanlar ısı transferini artırmanın yanında yüksek
kararlılığa sahip olmalıdır.  Sonuç
olarak, nanoakışkanın ısı transferini iyileştirme oranının, kararlılık
sağlandıktan sonra ölçülmesinin gerekliliği fikri ortaya çıkmaktadır. Bu
araştırmada nanoakışkanlarda kararlılık konusunda yapılan çalışmalar detaylı
bir şekilde incelenerek ısı transferi üzerindeki etkileri araştırılmıştır.

Anahtar Kelimeler

Nanoakışkan, kararlılık, ısı transferi uygulamaları, termal iletkenlik, ısı iletimi

THE IMPORTANCE OF NANOFLUIDS STABILITY IN TERNS OF HEAT TRANSFER ENHANCEMENT

Öz

In recent
years, efforts to improve heat transfer seem to have concentrated on the
nanofluids created by the effects of nanoparticle powders. There are many
studies showing that nanofluids increase heat transfer. There are many
obstacles in front of that nanofluids can replace conventional heat transfer
fluids. The most important of these is the nanofluids stability concept. Due to
the contradictions in the works done in this issue, the outcome of the change
of the angle of view to the nanofluids is revealed. In addition to increasing
the heat transfer of the nanofluids, the stability must be high. As a result,
idea that the heat transfer values of the nanofluids must be measured after
stabilization is achieved emerges. In this study, studies on stability in nanofluids
were studied and the effects on heat transfer were investigated.

Anahtar Kelimeler

Nanofluids, stability, heat transfer applications, thermal conductivity, heat transfer

Kaynakça

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