Open AccessНевероятный эффект скорости подъема тепловой нагрузки на удельный тепловой поток при кипении некоторых наножидкостей
Author(s) -
Б.И. Бондаренко,
В.Н. Морару,
С.В. Сидоренко,
Д.В. Комыш,
Н.Н. Гудков
Publication year - 2018
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2018.11.46192.16965
Subject(s) - boiling , nanofluid , distilled water , materials science , chemical engineering , aluminosilicate , montmorillonite , titanium dioxide , heat exchanger , nanoparticle , chemistry , composite material , chromatography , nanotechnology , thermodynamics , organic chemistry , catalysis , physics , engineering
Boiling curves for different heat-load increase rates (HLIRs) are obtained for distilled water, tap water, and two nanofluids (NFs) based on a natural mixture of montmorillonite and attapulgite (AlSi-7) and titanium dioxide (NF-8). An unusually strong influence of the HLIR on the thermal parameters of NFs is detected upon boiling of AlSi-7 based on a mixture of highly anisometric nanoparticles of aluminosilicates of various morphologies capable of forming nanostructured openwork “architectures” on the heater surface. An explanation of the reasons for the observed effect is proposed. The data obtained indicate the existence of an optimal HLIR at which the structure of the deposit appearing on the heating surface during the boiling of an NF is most favorable for heat exchange.