Browsing Faculty of Engineering by Author "Koşar, A."
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Boiling heat transfer enhancement of magnetically actuated nanofluids
Şeşen, M.; Tekşen, Y.; Şahin, B.; Şendur, K.; Mengüç, Mustafa Pınar; Koşar, A. (AIP, 2013)Nanofluids offer a potential breakthrough as next-generation heat transfer fluids since they offer exciting new possibilities to enhance heat transfer performance compared to pure liquids. A major drawback for using ... -
Effect of electrostatic stabilization on thermal radiation transfer in nanosuspensions: Photo-thermal energy conversion applications
Al-Gebory, Layth Wadhah Ismael; Mengüç, Mustafa Pınar; Koşar, A.; Şendur, K. (Elsevier, 2018-04)Solar thermal collectors are among the most important photo-thermal energy conversion systems. Effectiveness of these systems is measured by the ability of working fluid to absorb incident radiative energy. Although ... -
The effect of nanoparticle type and nanoparticle mass fraction on heat transfer enhancement in pool boiling
Karimzadehkhouei, M.; Shojaeian, M.; Şendur, K.; Mengüç, Mustafa Pınar; Koşar, A. (Elsevier, 2017-06)Determining the heat transfer performance with nanofluids is of cardinal importance in the utilization of nanofluids in thermal systems. This study presents an experimental investigation on nucleate pool boiling heat ... -
Entropy generation analysis of laminar flows of water-based nanofluids in horizontal minitubes under constant heat flux conditions
Karimzadehkhouei, M.; Shojaeian, M.; Sadaghiani, A. K.; Şendur, K.; Mengüç, Mustafa Pınar; Koşar, A. (MDPI AG, 2018-04)During the last decade, second law analysis via entropy generation has become important in terms of entropy generation minimization (EGM), thermal engineering system design, irreversibility, and energy saving. In this ... -
Experimental and numerical investigation of inlet temperature effect on convective heat transfer of γ-Al2O3/Water nanofluid flows in microtubes
Karimzadehkhouei, M.; Sadaghiani, A. K.; Motezakker, A. R.; Akgönül, S.; Ozbey, A.; Şendur, K.; Mengüç, Mustafa Pınar; Koşar, A. (Taylor & Francis, 2019-06-15)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 ... -
Heat transfer enhancement with actuation of magnetic nanoparticles suspended in a base fluid
Şeşen, M.; Tekşen, Y.; Şendur, K.; Mengüç, Mustafa Pınar; Öztürk, H.; Yağcı Acar, H. F.; Koşar, A. (AIP, 2012)In this study, we have experimentally demonstrated that heat transfer can be substantially increased by actuating magnetic nanoparticles inside a nanofluid. In order to materialize this, we have utilized a miniature heat ... -
Pool boiling critical heat flux in dielectric liquids and nanofluids
Arık, Mehmet; Koşar, A.; Bostanci, H.; Bar-Cohen, A. (Elsevier, 2011)With the recent advances in consumer and power electronics, efficient thermal management of high heat flux components has taken on new urgency. While its inherent advantages have made air cooling the method of choice for ... -
Pressure drop and heat transfer characteristics of nanofluids in horizontal microtubes under thermally developing flow conditions
Karimzadehkhouei, M.; Yalçın, S. E.; Şendur, K.; Mengüç, Mustafa Pınar; Koşar, A. (Elsevier, 2015-10)This study presents pressure drop and heat transfer characteristics of water based nanofluids with TiO2 and Al2O3 nanoparticles of various mass fractions in horizontal smooth hypodermic microtubes with an outer diameter ... -
Subcooled flow boiling heat transfer of γ-Al2O3/water nanofluids in horizontal microtubes and the effect of surface characteristics and nanoparticle deposition
Karimzadehkhouei, M.; Sezen, M.; Şendur, K.; Mengüç, Mustafa Pınar; Koşar, A. (Elsevier, 2017)In this study, subcooled flow boiling heat transfer characteristics of nanofluids were investigated at micro scale. For this purpose, the effect of γ-Al2O3 (gamma-alumina) nanoparticles with an average solid diameter of ...
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