Pool boiling heat transfer in dielectric fluids and impact of surfaces on the repeatability

Name: Pool boiling heat transfer in dielectric fluids and impact of surfaces on the repeatability
Author: Emir, Tolga, Yazıcı, Yakup Gökalp, Budaklı, M., Arık, Mehmet

İsim	Pool boiling heat transfer in dielectric fluids and impact of surfaces on the repeatability
Yazar	Emir, Tolga, Yazıcı, Yakup Gökalp, Budaklı, M., Arık, Mehmet
Basım Tarihi:	2022
Basım Yeri	- ASME
Konu	Critical heat flux, Dielectric liquids, Heat transfer, Pool boiling, Surface oxidation
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	978-079188655-7
Kayıt Numarası	b13e6d39-881f-4ef3-af9e-9975518973ec
Lokasyon	Mechanical Engineering
Tarih	2022
Notlar	Ozyegin University ; Deutsche Forschungsgemeinschaft
Örnek Metin	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 and 10 K subcooling levels. The primary objective was to understand the effect of fluid property on critical heat flux (CHF) and heat transfer performance, where the occurrence of surface oxidation over the entire set of experiments were investigated for a range of operating conditions. In order to determine the onset and development of the latter phenomenon, experiments for the complete boiling process have been repeated three times under similar conditions. A detailed visualization study with a highspeed camera has been utilized to capture the dynamics of bubble formation and departure. Additionally, high-resolution microscopic images were captured, and contact angle measurements were used to express the experimental results conveniently. Microscopic images showed that using DI water leads to an intensified oxidization on the heater surface, while HFE-7100 yields a minor occurrence of oxide layer on the copper surfaces. The results indicated that CHF values remain constant for water at 0 K; however, a remarkable increase was observed for 10 K subcooling from the first to third run of successive measurements.
DOI	10.1115/IPACK2022-97266

Kaynağa git Özyeğin Üniversitesi

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Özyeğin Üniversitesi

Kaynağa git

Pool boiling heat transfer in dielectric fluids and impact of surfaces on the repeatability

Yazar Emir, Tolga, Yazıcı, Yakup Gökalp, Budaklı, M., Arık, Mehmet

Basım Tarihi 2022

Basım Yeri - ASME

Konu Critical heat flux, Dielectric liquids, Heat transfer, Pool boiling, Surface oxidation

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 978-079188655-7

Kayıt Numarası b13e6d39-881f-4ef3-af9e-9975518973ec

Lokasyon Mechanical Engineering

Tarih 2022

Notlar Ozyegin University ; Deutsche Forschungsgemeinschaft

Örnek Metin 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 and 10 K subcooling levels. The primary objective was to understand the effect of fluid property on critical heat flux (CHF) and heat transfer performance, where the occurrence of surface oxidation over the entire set of experiments were investigated for a range of operating conditions. In order to determine the onset and development of the latter phenomenon, experiments for the complete boiling process have been repeated three times under similar conditions. A detailed visualization study with a highspeed camera has been utilized to capture the dynamics of bubble formation and departure. Additionally, high-resolution microscopic images were captured, and contact angle measurements were used to express the experimental results conveniently. Microscopic images showed that using DI water leads to an intensified oxidization on the heater surface, while HFE-7100 yields a minor occurrence of oxide layer on the copper surfaces. The results indicated that CHF values remain constant for water at 0 K; however, a remarkable increase was observed for 10 K subcooling from the first to third run of successive measurements.

DOI 10.1115/IPACK2022-97266