Тип публикации: статья из журнала
Год издания: 2015
Идентификатор DOI: 10.1134/S0018151X15020169
Ключевые слова: Copper oxides, Heat flux, Heat transfer, Heat transfer coefficients, Nanoparticles, Average size, Constant heat flux, CuO nanoparticles, Cylindrical channel, Distilled water, Oxide particles, Power law fluid, Volume concentration, Nanofluidics
Аннотация: The heat transfer coefficient of a nanofluid in a cylindrical channel under constant heat flux density at the walls is measured experimentally. The studied fluid was prepared based on distilled water and CuO nanoparticles with an average size of 55 nm. To stabilize the nanofluid, a biopolymer was used. The volume concentration of nПоказать полностьюanoparticles was in the range from 0.25 to 2%. It is shown that the nanofluid is Newtonian at the lowest concentration of nanoparticles, and in all other cases, its rheology is described well by the model of a power-law fluid. A correlation of the dependence of the parameters of this model on the concentration of nanoparticles is obtained. It is found that the presence of nanoparticles greatly intensifies the heat transfer.
Журнал: HIGH TEMPERATURE
Выпуск журнала: Vol. 53, Is. 2
Номера страниц: 246-253
ISSN журнала: 0018151X
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER