TY - JOUR

T1 - Pool boiling heat transfer on superhydrophobic, superhydrophilic, and superbiphilic surfaces at atmospheric and sub-atmospheric pressures

AU - Ateş, Ayşenur

AU - Benam, Behnam Parizad

AU - Mohammadilooey, Mandana

AU - Çelik, Süleyman

AU - Serdyukov, Vladimir

AU - Surtaev, Anton

AU - Sadaghiani, Abdolali Khalili

AU - Koşar, Ali

N1 - Funding Information: This study was funded by TUBITAK ( The Scientific and Technological Research Council of Turkey ) grant no: 119N401 and RFBR ( Russian Foundation for Basic Research ) grant no: 20–58–46008 . Publisher Copyright: © 2022 Elsevier Ltd

PY - 2023/2

Y1 - 2023/2

N2 - Surface wettability is one of the key parameters in the manipulation of the boiling phenomenon. Although there are a number of studies on the effect of surface wettability on boiling heat transfer, there are few research efforts to explain the boiling phenomenon on superbiphilic surfaces at sub-atmospheric pressures. In this study, pool boiling experiments were conducted to investigate the boiling heat transfer performance of surfaces with uniform (superhydrophobic and superhydrophilic) and mixed (superbiphilic) wettability. This study presents the results obtained from four different surfaces for both atmospheric (103.7 kPa) and sub-atmospheric (28.3 kPa) pressures and aims to provide an understanding of the wettability effect using saturated deionized water as the working fluid in the heat flux range of 7 - 290 kW/m2. The experimental results show that the superbiphilic surface (superhydrophobic spots with a pitch size of 3 mm and diameter of 0.7 mm) offers improvements in boiling heat transfer at both atmospheric and sub-atmospheric pressures up to 98% and 54%, respectively. Due to bubble coalescence being more likely to occur at sub-atmospheric pressure, the enhancement effect of superbiphilicity on boiling heat transfer is more significant for atmospheric pressure.

AB - Surface wettability is one of the key parameters in the manipulation of the boiling phenomenon. Although there are a number of studies on the effect of surface wettability on boiling heat transfer, there are few research efforts to explain the boiling phenomenon on superbiphilic surfaces at sub-atmospheric pressures. In this study, pool boiling experiments were conducted to investigate the boiling heat transfer performance of surfaces with uniform (superhydrophobic and superhydrophilic) and mixed (superbiphilic) wettability. This study presents the results obtained from four different surfaces for both atmospheric (103.7 kPa) and sub-atmospheric (28.3 kPa) pressures and aims to provide an understanding of the wettability effect using saturated deionized water as the working fluid in the heat flux range of 7 - 290 kW/m2. The experimental results show that the superbiphilic surface (superhydrophobic spots with a pitch size of 3 mm and diameter of 0.7 mm) offers improvements in boiling heat transfer at both atmospheric and sub-atmospheric pressures up to 98% and 54%, respectively. Due to bubble coalescence being more likely to occur at sub-atmospheric pressure, the enhancement effect of superbiphilicity on boiling heat transfer is more significant for atmospheric pressure.

KW - Biphilic surface

KW - Heat transfer enhancement

KW - Laser texturing

KW - Mixed wettability

KW - Pool boiling

KW - Sub-atmospheric pressure

KW - Wettability

UR - http://www.scopus.com/inward/record.url?scp=85141530308&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/222ba97c-2055-375f-9fd8-23176ba6516d/

U2 - 10.1016/j.ijheatmasstransfer.2022.123582

DO - 10.1016/j.ijheatmasstransfer.2022.123582

M3 - Article

AN - SCOPUS:85141530308

VL - 201

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

SN - 0017-9310

M1 - 123582

ER -