Browsing by Author "Cengiz, Ceren"
Now showing items 1-5 of 5
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Enhanced thermal performance of high flux led systems with two-phase immersion cooling
Cengiz, Ceren; Muslu, Ahmet Mete; Arık, Mehmet; Doğruöz, B. (IEEE, 2020)Considering significant worldwide use of electricity for general lighting, the implementation of energy efficient technologies is highlighted in many platforms with the use of light emitting diodes (LEDs). Because of its ... -
An experimental and numerical investigation of immersion cooled blue led combined with yag:ce phosphor for thermal, electrical and optical performance
At the new age of illumination, light emitting diodes (LEDs) have been proven to be the most efficient alternative to conventional light sources. Yet, in comparison to the other lighting systems, LEDs can withstand a lower ... -
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 ... -
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, ... -
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 ...
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