Browsing Faculty of Engineering by OzU Authors "Arık, Mehmet"
Now showing items 61-80 of 81
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Numerical and experimental analysis of a heat-pipe-embedded printed circuit board for solid state lighting applications
Salem, Thamer Khalif; Khosroshahi, F. S.; Arık, Mehmet; Hamdan, M. O.; Budakli, M. (Taylor & Francis, 2019-01-02)Thermal management is one of the main issues for electronics cooling especially for tightly packaged PCBs that experience local heat generation. Thus, theoretical and experimental investigations have been conducted to ... -
A numerical investigation into frost formation under impinging flow conditions
Saygın, Alper; Öksüz, Enes Abdülhakim; Başol, Altuğ Melik; Arık, Mehmet (IEEE, 2021)Frost formation is an undesired phenomenon for a wide range of practical applications as it diminishes amount of heat dissipation from heat transfer regions. In this paper, frost growth process on a vertically suspended ... -
A numerical study of a single unsteady laminar slot jet in a confined structure
Ghaffari, Omidreza; Doğruöz, M. B.; Arık, Mehmet (ASME, 2013)With the inherit advantages of air cooling, jet impingement can produce a factor of two or higher heat transfer than conventional fan flow over bodies. Therefore, impinging jets can solve a number of electronics thermal ... -
On the individual droplet growth modeling and heat transfer analysis in dropwise condensation
Azarifar, Mohammad; Budaklı, M.; Başol, Altuğ Melik; Arık, Mehmet (IEEE, 2021-10)The low convective coefficient at condenser part of spreaders and vapor chambers due to film blanket blocking encourages utilizing dropwise condensation (DWC). Challenges exist in the experimental characterization of DWC, ... -
Optical and thermal analysis of secondary optics in light emitting diodes' packaging: Analysis of MR16 lamp
Azarifar, Mohammad; Cengiz, Ceren; Arık, Mehmet (IOP Publishing, 2021-12-08)Optical and thermal control are two main factors in package design process of lighting products, specifically light emitting diodes (LEDs). This research is aimed to study the role of secondary optics in opto-thermal ... -
Parametric effects on pool boiling heat transfer and critical heat flux: A critical review
Emir, Tolga; Ourabi, H.; Budaklı, M.; Arık, Mehmet (ASME, 2022-12)Pool boiling heat transfer offers high-performance cooling opportunities for thermal problems of electronics limited with high heat fluxes. Therefore, many researchers have been extensively studying over the last six ... -
Particle based investigation of self-heating effect of phosphor particles in phosphor converted light emitting diodes
Azarifar, Mohammad; Cengiz, Ceren; Arık, Mehmet (Elsevier, 2021-03)Since 2003, self-heating effect of phosphor which reduces the efficacy and reliability of phosphor conversion (Pc) light emitting diodes (LEDs), has been a growing research area of opto-thermal Pc-LED modeling. However, ... -
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 ... -
Pool boiling heat transfer in dielectric fluids and impact of surfaces on the repeatability
Emir, Tolga; Yazıcı, Yakup Gökalp; Budaklı, M.; Arık, Mehmet (ASME, 2022)This study presents an experimental investigation on the nucleate boiling heat transfer (NBHT) in deionized (DI) water and HFE-7100 on bare copper surfaces. The experiments were performed under atmospheric condition at 0 ... -
Predicting heat transfer for low- and high-frequency central-orifice synthetic jets
Ikhlaq, Muhammad; Ghaffari, Omidreza; Arık, Mehmet (IEEE, 2016-04)As electronic devices are becoming more compact each day, the more effective and efficient active cooling technologies are needed. Microfluidic devices, such as synthetic jets, serve as a potential candidate to fulfill the ... -
Predicting heat transfer from unsteady synthetic jets
Arık, Mehmet; Icoz, T. (ASME, 2012-05-31)Synthetic jets are piezo-driven, small-scale, pulsating devices capable of producing highly turbulent jets formed by periodic entrainment and expulsion of the fluid in which they are embedded. The compactness of these ... -
Rapid heating and cooling chamber for a photonics junction measurement system
Tarçın, Hüseyin Gökberk; Saygın, Alper; Muslu, Ahmet Mete; Budakli, M.; Arık, Mehmet (IEEE, 2020)Since many industrial applications require heat treatment processes or validation tests under certain ambient temperatures, thermal design is a key issue to be considered in order to ensure fast heating and cooling ... -
Saturated and superheated water vapor condensation on a custom micro-textured surface
Budaklı, Mete; Arık, Mehmet (IEEE, 2023)Condensation has a great importance for a large number of technologies such as heat exchangers, distillation columns, heat pipes, and thermal management systems. Vapor changes its phase into liquid when it contacts a surface ... -
Spreading behavior of droplets impacting over substrates with varying surface topographies
Cetiner, A.; Evren, B.; Budakli, M.; Arık, Mehmet; Ozbek, A. (Elsevier, 2020-12-05)Droplet interaction with solid surface plays an important role in a number of practical applications such as thermal management systems, steel production, painting, prevention of impurit deposition, and formation of ... -
Steady and unsteady air impingement heat transfer for electronics cooling applications
Arık, Mehmet; Sharma, R.; Lustbader, J.; He, X. (ASME, 2013)This paper focuses on two forced convection methods—steady jet flow and pulsating flow by synthetic jets—that can be used in applications requiring significant amounts of heat removal from electronics components. Given the ... -
Synthetic jet cooling technology for electronics thermal management - A critical review
Ikhlaq, M.; Yasir, M.; Demiroglu, M.; Arık, Mehmet (IEEE, 2021-08)Effective removal of excess heat from electronics equipment is the key to its intended functionality. A Defense Advanced Research Projects Agency (DARPA) hard problem is proposed in microtechnologies for the air-cooled ... -
Thermal and optical characterization of white and blue multi-chip LED light engines
Cengiz, Ceren; Azarifar, Mohammad; Arık, Mehmet (IEEE, 2021)A clear understanding of thermal characteristics for light emitting diodes (LEDs) is at the center of attention for lighting industry. Especially accurate evaluation of the junction temperature of various light engines is ... -
Thermal and optical performance characterization of bare and phosphor converted LEDs through package level immersion cooling
Azarifar, Mohammad; Cengiz, Ceren; Arık, Mehmet (Elsevier, 2022-06-15)Increased demand for high flux electronics requires creative and affordable thermal management approaches to meet the performance and lifetime expectations. In the present study, optical and thermal improvements of a new ... -
Thermal and optical performance of eco-friendly silk fibroin proteins as a cavity encapsulation over LED systems
Yuruker, Sevket Umut; Arık, Mehmet; Tamdoğan, Enes; Melikov, R.; Nizamoğlu, Sedat; Press, D. A.; Durak, Ilkem (ASME, 2015)The demand for high power LEDs for illumination applications is increasing. LED package encapsulation is one of most critical materials that affect the optical path of the generated light by LEDs, and may result in lumen ... -
Thermal enhancement of an LED light engine for automotive exterior lighting with advanced heat spreader technology
Uras, Umut Zeynep; Tamdoğan, Enes; Arık, Mehmet (ASME, 2016)In recent years, light emitting diodes (LEDs) have become an attractive technology for general and automotive illumination systems. LEDs have been preferable for automobile lighting due to its numerous advantages such as ...
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