A LOOP THERMOSYPHON FOR LIQUID COOLED MINICHANNELS HEAT SINK WITH PULSATE SURFACE HEAT FLUX

Kays A. AL-TAE’Y; Ameer Abed JADDOA; Hussain Saad ABD

doi:https://doi.org/10.18186/thermal.931389

Makale detayları

A LOOP THERMOSYPHON FOR LIQUID COOLED MINICHANNELS HEAT SINK WITH PULSATE SURFACE HEAT FLUX

Yazarlar:

Kays A. AL-TAE’Y | Ameer Abed JADDOA | Hussain Saad ABD

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Journal of Thermal Engineering 2021 Vol.7 Issue 4, pp.1030-1038

Belge Tipi:

Makale

Yayın Tarihi:

4/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000505202

Sıklık:

İki Aylık

eISSN:

2148-7847

DOI:

https://doi.org/10.18186/thermal.931389

Özet:

 

The period operation of power electronic acts as switching element, where the power dissipated consists of pulses at certain duty cycle, the semiconductor temperature oscillates and varies as a waveform. In the present study, an experimental investigation was carried out for a loop thermosyphon order to evaluate the effect of pulsate surface heat flux on the single-phase buoyancy driven convection of ethylene glycol flow through a minichannels heat sink with hydraulic diameter 1.5 mm. An electric heater block is used to supply the heat flux to minichannels heat sink in a rectangle waveform. The study is done at different heat flux frequencies of 2.777×10-3 Hz, 8.333×10-4 Hz, 5.555×10-4 Hz and 4.166×10-4 Hz, while the heat flux amplitude (2 watt), Rayleigh number (1864) and duty cycle (50 %) are kept constant. The results revealed that for a range of the measured frequency for the complete power cycle and due to unsteady state operation conditions, the pulse heat flux pattern is close to a rectangle-wave, this generates the fluid outlet temperature pattern close to a triangle-wave. The fluid outlet temperature increases with the decreases of heat flux frequency and tends to reach to the fluid outlet temperature for a constant and continuous heat flux case. Due to closed-loop of thermosyphon, the fluid inlet temperature is changed in pattern like that the fluid outlet temperature change.

Makale detayları

A LOOP THERMOSYPHON FOR LIQUID COOLED MINICHANNELS HEAT SINK WITH PULSATE SURFACE HEAT FLUX

Yazarlar: Kays A. AL-TAE’Y | Ameer Abed JADDOA | Hussain Saad ABD

Yayıncı: Yildiz Technical University

Ana Başlıklar: Uygulamalı fizik

Dergi: Journal of Thermal Engineering 2021 Vol.7 Issue 4, pp.1030-1038

Belge Tipi: Makale

Yayın Tarihi: 4/2021

Belge Dili: İngilizce

Document ID (Org No.): 2000505202

Sıklık: İki Aylık

eISSN: 2148-7847

DOI: https://doi.org/10.18186/thermal.931389

Sayı

Yazarlar:

Kays A. AL-TAE’Y | Ameer Abed JADDOA | Hussain Saad ABD

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Journal of Thermal Engineering 2021 Vol.7 Issue 4, pp.1030-1038

Belge Tipi:

Makale

Yayın Tarihi:

4/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000505202

Sıklık:

İki Aylık

eISSN:

2148-7847

DOI:

https://doi.org/10.18186/thermal.931389