TY - JOUR

T1 - Boiling of liquid in a mini channel on smooth, rough and porous surfaces

AU - Semenov, Andrey

AU - Pukhovoy, Maxim

AU - Zaitsev, Dmitry

N1 - Conference code: 40

PY - 2024/10/14

Y1 - 2024/10/14

N2 - A series of experiments were conducted to study the effect of the heater coating on the frequency of formation of steam bubbles and on heat exchange during boiling in the channel. Three different surfaces were used: 1) smooth, 2) rough and 3) porous. It was found that at relatively low heat fluxes, the specific frequency of bubble formation on a rough surface is higher than on a smooth one. However, with an increase in the heat flux, the difference in the frequency of bubble formation on rough and smooth surfaces practically disappears. At the same time, bubble formation on a porous surface occurs with almost 3 times the frequency, compared to both smooth and rough in the entire range of heat fluxes (up to 500 W/cm2). The obtained results can explain the recorded fact of a significant increase in the heat transfer coefficient and the critical heat flux on a porous surface.

AB - A series of experiments were conducted to study the effect of the heater coating on the frequency of formation of steam bubbles and on heat exchange during boiling in the channel. Three different surfaces were used: 1) smooth, 2) rough and 3) porous. It was found that at relatively low heat fluxes, the specific frequency of bubble formation on a rough surface is higher than on a smooth one. However, with an increase in the heat flux, the difference in the frequency of bubble formation on rough and smooth surfaces practically disappears. At the same time, bubble formation on a porous surface occurs with almost 3 times the frequency, compared to both smooth and rough in the entire range of heat fluxes (up to 500 W/cm2). The obtained results can explain the recorded fact of a significant increase in the heat transfer coefficient and the critical heat flux on a porous surface.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85211897209&origin=inward&txGid=fd136ced75488c3bb8335c21b24ec71e

UR - https://www.mendeley.com/catalogue/e9e87130-4dd6-3f3c-b333-1d928df57395/

U2 - 10.1051/e3sconf/202457801049

DO - 10.1051/e3sconf/202457801049

M3 - Conference article

VL - 578

JO - E3S Web of Conferences

JF - E3S Web of Conferences

SN - 2555-0403

M1 - 01049

T2 - Всероссийская конференция с международным участием «XL Сибирский теплофизический семинар», посвященная 110-летию со дня рождения академика С.С. Кутателадзе и 300-летию Российской академии наук

Y2 - 20 August 2024 through 23 August 2024

ER -