Experimental and numerical investigation of inlet temperature effect on convective heat transfer of γ-Al2O3/Water nanofluid flows in microtubes

Name: Experimental and numerical investigation of inlet temperature effect on convective heat transfer of γ-Al2O3/Water nanofluid flows in microtubes
Author: Karimzadehkhouei, M., Sadaghiani, A. K., Motezakker, A. R., Akgönül, S., Ozbey, A., Şendur, K., Mengüç, Mustafa Pınar, Koşar, A.

İsim	Experimental and numerical investigation of inlet temperature effect on convective heat transfer of γ-Al2O3/Water nanofluid flows in microtubes
Yazar	Karimzadehkhouei, M., Sadaghiani, A. K., Motezakker, A. R., Akgönül, S., Ozbey, A., Şendur, K., Mengüç, Mustafa Pınar, Koşar, A.
Basım Tarihi:	2019-06-15
Basım Yeri	- Taylor & Francis
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0145-7632
Kayıt Numarası	d0566499-c4cc-4873-aab8-10d15a50cc0a
Lokasyon	Mechanical Engineering
Tarih	2019-06-15
Notlar	Turkish Academy of Sciences ; Science Academy (BA)
Örnek Metin	Nanofluids are the combination of a base fluid with nanoparticles with sizes of 1–100 nm. In order to increase the heat transfer performance, nanoparticles with higher thermal conductivity compared to that of base fluid are introduced into the base fluid. Main parameters affecting single-phase and two-phase heat transfer of nanofluids are shape, material type and average diameter of nanoparticles, mass fraction and stability of nanoparticles, surface roughness, and fluid inlet temperature. In this study, the effect of inlet temperature of deionized water/alumina (Al2O3) nanoparticle nanofluids was both experimentally and numerically investigated. Nanofluids with a mass fraction of 0.1% were tested inside a microtube having inner and outer diameters of 889 and 1,067 µm, respectively, for hydrodynamically developed and thermally developing laminar flows at Reynolds numbers of 650, 1,000, and 1,300. According to the obtained numerical and experimental results, the inlet temperature effect was more pronounced for the thermally developing region. The performance enhancement with nanoparticles was obtained at rather higher Reynolds numbers and near the inlet of the microtube. There was a good agreement between the experimental and numerical results so that the numerical approach could be further implemented in future studies on nanofluid flows.
DOI	10.1080/01457632.2018.1442305
Cilt	40

Kaynağa git Özyeğin Üniversitesi

Aramaya Dön

Özyeğin Üniversitesi

Kaynağa git

Experimental and numerical investigation of inlet temperature effect on convective heat transfer of γ-Al2O3/Water nanofluid flows in microtubes

Yazar Karimzadehkhouei, M., Sadaghiani, A. K., Motezakker, A. R., Akgönül, S., Ozbey, A., Şendur, K., Mengüç, Mustafa Pınar, Koşar, A.

Basım Tarihi 2019-06-15

Basım Yeri - Taylor & Francis

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0145-7632

Kayıt Numarası d0566499-c4cc-4873-aab8-10d15a50cc0a

Lokasyon Mechanical Engineering

Tarih 2019-06-15

Notlar Turkish Academy of Sciences ; Science Academy (BA)

Örnek Metin Nanofluids are the combination of a base fluid with nanoparticles with sizes of 1–100 nm. In order to increase the heat transfer performance, nanoparticles with higher thermal conductivity compared to that of base fluid are introduced into the base fluid. Main parameters affecting single-phase and two-phase heat transfer of nanofluids are shape, material type and average diameter of nanoparticles, mass fraction and stability of nanoparticles, surface roughness, and fluid inlet temperature. In this study, the effect of inlet temperature of deionized water/alumina (Al2O3) nanoparticle nanofluids was both experimentally and numerically investigated. Nanofluids with a mass fraction of 0.1% were tested inside a microtube having inner and outer diameters of 889 and 1,067 µm, respectively, for hydrodynamically developed and thermally developing laminar flows at Reynolds numbers of 650, 1,000, and 1,300. According to the obtained numerical and experimental results, the inlet temperature effect was more pronounced for the thermally developing region. The performance enhancement with nanoparticles was obtained at rather higher Reynolds numbers and near the inlet of the microtube. There was a good agreement between the experimental and numerical results so that the numerical approach could be further implemented in future studies on nanofluid flows.

DOI 10.1080/01457632.2018.1442305

Cilt 40