TY  - JOUR
T1  - Havuz Kaynama Şartlarında Su-bazlı Cerium Oksit Nano-süspansiyonunun Termal Davranışı
TT  - Thermal Behavior of Aqueous Cerium Oxide Nano-Suspension under the Pool Boiling Conditions
AU  - Çiloğlu, Doğan
PY  - 2017
DA  - December
Y2  - 2017
JF  - Journal of the Institute of Science and Technology
JO  - J. Inst. Sci. and Tech.
PB  - Igdir University
WT  - DergiPark
SN  - 2536-4618
SP  - 181
EP  - 188
VL  - 7
IS  - 4
LA  - tr
AB  - Bu çalışma, atmosfer basıncı altında yatay bir bakır plaka üzerinde cerium oksit (CeO2, ceria) nanosüspansiyonununhavuz kaynama karakteristiklerinin deneysel olarak incelenmesi üzerine gerçekleştirilmiştir.Nano akışkan süspansiyonu iki adım metodu ile hazırlanmıştır ve Na-citrate ilavesi, pH ayarı ve ultrasonik titreşimuygulanarak kararlı hale getirilmiştir. Cerium oksit nano akışkanının havuz kaynama ısı transfer katsayısı üzerinekaynama yüzeyine uygulanan ısı akısının etkisi deneysel olarak incelenmiş ve sonuçlar tartışılmıştır. Deneyselsonuçlar, iş yapan akışkan olarak cerium oksit nano akışkanının kullanılması ile havuz kaynama ısı transferkatsayısının arttığını göstermiştir. Ayrıca elde edilen sonuçlar, de-iyonize su ile karşılaştırıldığında, %0.1 hacimselkonsantrasyona sahip cerium oksit nano akışkanı için kritik ısı akısında %103 artış olduğunu göstermiştir.
KW  - Cerium oksit
KW  - havuz kaynama
KW  - ısı transferi
KW  - kritik ısı akısı
KW  - nano partikül
N2  - The present paper focuses on an experimental study of pool boiling characteristics of ceriumoxide (CeO2, ceria) nano-suspension on a horizontal flat copper surface at atmospheric pressure. The nanofluidsuspension is prepared by a two-step method and stabilized using Na-citrate, pH setting and ultrasonic vibrationas well. The effect of applied heat flux to the boiling surface on pool boiling heat transfer coefficient (HTC) ofcerium oxide nanofluid is experimentally examined and briefly discussed. The results illustrate that the pool boilingHTC increases with using cerium oxide nanofluid as working fluid. Also, the results show that the critical heat fluxfor cerium oxide nanofluid having 0.1 vol.% nanoparticle concentration improves up to 103% compared with thedeionized water.
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UR  - https://dergipark.org.tr/en/pub/jist/issue//390607
L1  - https://dergipark.org.tr/en/download/article-file/419692
ER  -