Browsing by Author "Şendur, K."
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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 ... -
Effect of pH on particle agglomeration and radiative transfer in nanoparticle suspensions
Al-Gebory, Layth Wadhah Ismael (2018-08)Nanoparticle suspensions (NPSs) are solid-fluid mixtures where small dielectric or metallic particles (with sizes <100 nm) used in a base fluid. NPSs have unique and tunable thermo-optical properties, and for that reason ... -
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 ... -
Experimental study on heat transfer of multi-walled carbon nanotubes/water nanofluids in horizontal microtubes
Karimzadehkhouei, M.; Sadaghiani, A. K.; Şendur, K.; Mengüç, Mustafa Pınar (ASME, 2016)In this study, heat transfer characteristics of multi-walled carbon nanotube based nanofluids were investigated in horizontal microtubes with outer and inner diameters of ∼1067 and ∼889 μm, respectively. Carbon nanotubes ... -
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 ... -
Near- and far-field thermal radiation in metamaterials and the development of NF-RT-FDTD algorithm
Didari, Azadeh (2016-06)In this dissertation, analysis of near-field regime of thermal radiative transfer in metamaterials supporting surface phonon polaritons (SPhPs) is given. Solutions of electromagnetic fields at subwavelength distances are ... -
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 ... -
Radiative cooling by spectrally selective materials for building
Family, Roxana (2018-01-03)Buildings utilize more than one-third of the total energy consumed in counties within the Mediterranean climate zones like in Turkey. Particularly during the summer months, the absorption of solar energy by the buildings ... -
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 ... -
Thermal and radiative energy/exergy analyses of parabolic trough collector systems
Mohammed, Hayder Noori (2018-08)The concept of exergy is used to determine the maximum energy that can be extracted from a system. It is based on both the first and the second laws of thermodynamics and allows us to determine the irreversibilities ...
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