Filiz Özgen

ORCID: 0000-0003-2278-2093
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About
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Research Areas
  • Heat Transfer and Optimization
  • Heat Transfer Mechanisms
  • Nanofluid Flow and Heat Transfer
  • Food Drying and Modeling
  • Postharvest Quality and Shelf Life Management
  • Solar Thermal and Photovoltaic Systems
  • Fluid Dynamics and Turbulent Flows
  • Dental materials and restorations
  • Solar Energy Systems and Technologies
  • Heat Transfer and Boiling Studies
  • Greenhouse Technology and Climate Control
  • Bone Tissue Engineering Materials
  • Dental Implant Techniques and Outcomes
  • Heat and Mass Transfer in Porous Media
  • Public Administration and Governance
  • Recycling and utilization of industrial and municipal waste in materials production
  • Concrete and Cement Materials Research
  • Flow Measurement and Analysis
  • Innovative concrete reinforcement materials
  • Aerodynamics and Fluid Dynamics Research
  • Microbial Inactivation Methods
  • High voltage insulation and dielectric phenomena
  • Fluid Dynamics and Vibration Analysis
  • Solar-Powered Water Purification Methods
  • Music Education and Analysis

Fırat University
2009-2024

In this study, the drying of kiwi fruit in a convective dryer is examined experimentally. Air velocity, thickness slices and time are varied parameters process. experimental having 4 8 mm dried under conditions 45 °C temperature air, 10% relative humidity 0.5–1.5 m/s air velocity. addition to tests, effects mentioned on analyzed by ANOVA (Analysis Variance) method find contribution rate each parameter. For aim, an orthogonal array arranged using Taguchi design experiment method. As results...

10.3390/app9010010 article EN cc-by Applied Sciences 2018-12-20

The heat transfer of mixed convection in a horizontal channel filled with porous medium has been studied this article, given that it plays an extensive role various technical applications, such as flow fluid geothermal resources, formations chemical industries, the storage radioactive nuclear waste material, and cooling. Those equations written dimensionless form have solved using finite difference method for different values parameters. results obtained from study presented through...

10.3390/app9020211 article EN cc-by Applied Sciences 2019-01-09

In this study, natural convection heat transfer in a square cavity with an adiabatic fin mounted on vertical wall was investigated numerically. Vertical boundaries were and horizontal isothermal at different constant temperature. Two–dimensional equations of conservation mass, momentum energy solved using finite difference method. Successive under relaxation (SUR) method used to solve linear algebraic equations. Results obtained for various geometrical parameters as the thermal conductivity...

10.1504/pcfd.2015.067324 article EN Progress in Computational Fluid Dynamics An International Journal 2015-01-01

Expanded clay (exclay) aggregate and cherry tree resin are used in this study to produce a lightweight construction material. Based on the grain diameter, exclays classified as d = 2–4 mm 4–6 mm. Cement is added each group binder The exclay ratios vary 10%, 20%, 30%, 40% 50% of total volume samples. poured into concrete mixture with ratio 1% 1.5% cement + order form artificial pores sample group. produced samples subjected some tests, such thermal conductivity, water absorption compressive...

10.3390/app14010336 article EN cc-by Applied Sciences 2023-12-29

In this study, a numerical and experimental analysis of solar collector with roughness elements in the form stainless-steel scourers on absorber surface is presented. According to location type number stainless steel scourers, surfaces are referred as complex (C1), less (C2), flat (C3). A Computational Fluid Dynamics (CFD) was carried out using ANSYS-CFX-R18.2 commercial software. The results were verified study. After study confirmation then detailed investigation performed by simulations....

10.3390/app14062629 article EN cc-by Applied Sciences 2024-03-21

Nano parçacık katkısının termal sistemlerin ısıl verimini artırmada önemli etkileri olduğu bilinmektedir. Bu çalışmanın amacı, imalat maliyeti en düşük ısı borusu tiplerinden biri olan termosifon borularının (TIB) performansını iş akışkanına hibrit nano katkısı yapılarak ele alınması ve eklentisinin etkilerinin araştırılmasıdır. Doldurma oranı konsantrasyonun performans üzerindeki incelenmiştir. Al2O3+TiO2–H2O akışkanının kararlılığının Al2O3– H2O 'kinden daha yüksek saptanmıştır. akışkan...

10.28948/ngumuh.1404537 article TR cc-by-nc Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi 2024-05-13

In this study, the effect of various concentrations Al2O3-water nanofluid on heat transfer in duct with a square cross-section, under conditions continuous flux and laminar forced flow, investigated numerically. Reference experi-mental application parameters are accepted as reference, calculated single phase homogeneous model (SPHM) Brownian (SPBM) models, average coefficient results numerical models compared each other reference experimental data. Numerical obtained SPHM SPBM comparison to...

10.2298/tsci22s1091o article EN Thermal Science 2022-01-01

The purpose of this study was to develop a biologically derived fluor rich hydroxyapatite (HA) for plasma spraying purposes by simple way. HA from human teeth and processed in laboratory conditions as coating material. For manufacturing data HALL flowability, shear stress, SEM, metallography, X-ray diffraction ion analyzing tests were performed. Implant prototypes prepared titanium rods, which coated with powder unit. Statistical studies also done test the performance coatings. All results...

10.4028/www.scientific.net/kem.309-311.627 article EN Key engineering materials 2006-05-01

In this study, the effects of drying air velocity on organic apple and kiwi fruits that were sliced in same sizes experimentally examined a convective type dryer. order to examine effect process, at 45?C 10% relative humidity was applied fruit samples 4 mm thickness 0.5, 1.0, 1.5 m/s velocities. It observed from experimental results has significant total time. The time slices under these conditions varied between 150-360 minutes. lowest (150 minutes) obtained for sample with slice thickness,...

10.2298/tsci21s2327o article EN Thermal Science 2021-01-01

In this study, the energy analysis of a solar air heater with an absorber plate made different obstacles was made. Absorber created porous steel wool. Three plates were used for experimental study. Complex (Type I) as first type plate, less complex II) second and flat III) third plate. On these plates, which are manufactured three wools placed in way. One left empty. experiments, mass-flow rate passing through passage channels taken 0.05 kg/s 0.025 kg/s, optimum flow found kg/s. order to...

10.2298/tsci21s2333o article EN Thermal Science 2021-01-01

This study is prepared to analyze the heat transfer from a uniformly heated, slightly curved convex (SCX) surface numerically using computational fluid dynamics (CFD) code of commercial software ANSYS-CFX. Some experimental results are also obtained by means wind tunnel setup confirm numerical study. After good agreement achieved between and results, effects some major parameters on around SCX determined results. Effects Prandtl number (Pr = 0.237 3431), Reynolds (Re 40,000 400,000),...

10.1615/interjfluidmechres.2022043421 article EN International journal of fluid mechanics research 2022-10-04

Bu çalışmada yutucu yüzeyi farklı engellerden oluşmuş havalı bir güneş kollektörünün tasarımı yapılmıştır. Havalı kollektörün yüzeyi, gözenekli bulaşık telleri kullanılarak oluşturulmuştur. Deneysel çalışma için üç yüzey kullanılmıştır. Birinci tip olarak karmaşık (Tip I), ikinci az II), üçüncü düz III) Üç imal edilen bu yüzeylerin üzerine ve yerleştirilmiştir. Bir tane de boş bırakılmıştır. Bulaşık yanyana uç uca eklenerek selenoid şekilde yapıştırıldıktan sonra siyah mat boya ile boyanarak...

10.46460/ijiea.899853 article TR International Journal of Innovative Engineering Applications 2021-04-19

Bu çalışmada, kızılcık meyvesinin kuruma karakteristikleri ve kuruması için gerekli olan enerji miktarı deneysel olarak incelenmiştir. Kızılcık kurutulması konvektif tip bir kurutucu kullanılmıştır. Kurutucu, fan, ısıtıcı, güç kaynağı, kurutma odası, hava giriş çıkış kanalları ile ölçüm aletlerinden oluşmuştur. Taze toplanmış meyvesi, 35 °C sıcaklıkta, 1 1.5 m/s havası hızında kurutulmuştur. Her tepsisine 304 gr yaş meyvesi koyulmuş, baza göre % 68 ilk nem içeriği, 10’ a ulaşıncaya kadar...

10.35234/fumbd.845408 article TR Fırat Üniversitesi Mühendislik Bilimleri Dergisi 2021-09-03
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