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Natural convection immersion cooling with enhanced optical performance of light-emitting diode systems
(2015-10-15)
Electronics driven at high currents may experience local hot spots, which may cause thermal degradation or even catastrophic failures. This common problem occurs at light-emitting diode (LED) chips and it is not easily ...
Development of a computational modeling and experimental validation approach for KSF LED packages in a 65” ultra thin LED TV system
(IEEE, 2018-07-24)
The customer expectations in global TV market have changed over the last decade significantly towards a thinner with a higher brightness and a wider color gamut (WCG) TV products. These requirements led to a drastic increase ...
An experimental and computational study on efficiency of white LED packages with a thermocaloric approach
(IEEE, 2017)
Thermal management of light-emitting diode (LED) chips is crucial for light extraction and lifetime. It is well known that the light output of an LED decreases with the elevated temperatures. For higher light extraction, ...
A computational study on the momentum and heat transfer distribution of a low frequency round impinging synthetic jet
(ASME, 2015)
Impinging synthetic jets have been considered as a possible solution for cooling miniature structures. It has been shown that synthetic jet performance is sensitive to the distance between the jet nozzle and the target ...
Effect of polymer coating on vapor condensation heat transfer
(ASME, 2020-04-01)
Condensation heat transfer coefficients (HTCs) are rather low compared to thin film evaporation. Therefore, it can be a limiting factor for designing heat transfer equipment. In this work, heat transfer characteristics of ...
Characteristics of low reynolds number steady air jet impingement heat transfer over vertical flat surfaces
(IEEE, 2012)
In this paper, heat transfer characteristics of single-slot steady-impinging air jets on a 25.4 mm × 25.4 mm vertical surface were experimentally investigated. The experiments were conducted with four different nozzles ...
An investigation of performance of synthetic jets emanating from circular, elliptical and rectangular nozzles
(IEEE, 2018-07-24)
Impinging synthetic jets have been considered as a future solution for cooling miniature structures. Synthetic jet performance is sensitive to a number of parameters such as orifice size, orifice shape and nozzle-to-target ...
A comparative study on the junction temperature measurements of LEDs with raman spectroscopy, microinfrared (IR) imaging, and Forward voltage methods
(IEEE, 2018-11)
Energy efficiency, long life, exceptional color, and performance of solid-state light sources have resulted in a rapidly increasing trend in a number of practical applications especially for general lighting after a long ...
Enhanced thermal performance of high flux led systems with two-phase immersion cooling
(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 ...
Spreading behavior of droplets impacting over substrates with varying surface topographies
(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 ...
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