Discrete phase analysis of self heating particles over an immersion liquid cooled high power blue light-emitting diode with suspended phosphor particles

Name: Discrete phase analysis of self heating particles over an immersion liquid cooled high power blue light-emitting diode with suspended phosphor particles
Author: Cengiz, Ceren, Muslu, Ahmet Mete, Azarifar, Mohammad, Arık, Mehmet, Dogruoz, B.

İsim	Discrete phase analysis of self heating particles over an immersion liquid cooled high power blue light-emitting diode with suspended phosphor particles
Yazar	Cengiz, Ceren, Muslu, Ahmet Mete, Azarifar, Mohammad, Arık, Mehmet, Dogruoz, B.
Basım Tarihi:	2022-10
Basım Yeri	- ASME
Konu	Discrete phase modeling (DPM), Dispersed multiphase flow, Immersion cooling, Pc-WLEDs, Phosphor, Self-heating
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0022-1481
Kayıt Numarası	39d356ee-75dc-4a82-a3c8-1d27b6e49f5a
Lokasyon	Mechanical Engineering
Tarih	2022-10
Notlar	TÜBİTAK
Örnek Metin	In recent years, the interaction of unrestricted particles with dispersed multiphase flows has been linked to a number of important engineering applications. Among these applications, the novel idea of immersion-cooled phosphor particles, which has the potential of significantly increasing the thermal limits of phosphor converted white light-emitting diode (LEDs) (Pc-WLEDs), has yet to be thoroughly investigated. With this objective, this research utilizes the discrete phase modeling (DPM) technique for the characterization of phosphor location and movements within a buoyancy-driven flow, which is the determining factor in the optical behavior of the newly proposed Pc-WLED configuration. Two-phase flow analysis is conducted to characterize particle movement. Heat transfer, flow, and energy paths of self-heating phosphor particles are extracted, and the influence of particle sizes is analyzed in detail. The results show that with immersion liquid cooling, the highest phosphor particle temperature is recorded to be under 420 K, while larger size particles introduce higher heat transfer rates to the Pc-WLED package for the same number of particles. Moreover, depending on the particle size and position, individual phosphor particles can follow a different trajectory that can affect the probability of obtaining white light emission.
DOI	10.1115/1.4055145
Cilt	144

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Discrete phase analysis of self heating particles over an immersion liquid cooled high power blue light-emitting diode with suspended phosphor particles

Yazar Cengiz, Ceren, Muslu, Ahmet Mete, Azarifar, Mohammad, Arık, Mehmet, Dogruoz, B.

Basım Tarihi 2022-10

Basım Yeri - ASME

Konu Discrete phase modeling (DPM), Dispersed multiphase flow, Immersion cooling, Pc-WLEDs, Phosphor, Self-heating

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0022-1481

Kayıt Numarası 39d356ee-75dc-4a82-a3c8-1d27b6e49f5a

Lokasyon Mechanical Engineering

Tarih 2022-10

Notlar TÜBİTAK

Örnek Metin In recent years, the interaction of unrestricted particles with dispersed multiphase flows has been linked to a number of important engineering applications. Among these applications, the novel idea of immersion-cooled phosphor particles, which has the potential of significantly increasing the thermal limits of phosphor converted white light-emitting diode (LEDs) (Pc-WLEDs), has yet to be thoroughly investigated. With this objective, this research utilizes the discrete phase modeling (DPM) technique for the characterization of phosphor location and movements within a buoyancy-driven flow, which is the determining factor in the optical behavior of the newly proposed Pc-WLED configuration. Two-phase flow analysis is conducted to characterize particle movement. Heat transfer, flow, and energy paths of self-heating phosphor particles are extracted, and the influence of particle sizes is analyzed in detail. The results show that with immersion liquid cooling, the highest phosphor particle temperature is recorded to be under 420 K, while larger size particles introduce higher heat transfer rates to the Pc-WLED package for the same number of particles. Moreover, depending on the particle size and position, individual phosphor particles can follow a different trajectory that can affect the probability of obtaining white light emission.

DOI 10.1115/1.4055145

Cilt 144