Topic
Subcooling
About: Subcooling is a research topic. Over the lifetime, 6150 publications have been published within this topic receiving 99125 citations.
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TL;DR: In this article, the authors investigated transient heat transfer with a subcooled water jet during quenching of hot cylindrical blocks made of copper, brass and steel for initial surface temperatures from 250 to 400°C.
80 citations
TL;DR: In this paper, a high-speed digital video camera was applied to record the dynamics of the subcooled boiling process, and the experimental data obtained from this study can be used in modeling the bubble departure frequency, bubble lift-off diameter, bubble growth rate and bubble velocity after bubble liftoff.
80 citations
TL;DR: In this paper, it was shown that a significant CHF enhancement can be achieved with as little as 0.01% by volume concentration of alumina nanoparticles in flow experiments at atmospheric pressure, low subcooling 20° C, and relatively high mass flux 1000 kg/m 2 s.
Abstract: Many studies have shown that addition of nanosized particles to water enhances the critical heat flux (CHF) in pool boiling. The resulting colloidal dispersions are known in the literature as nanofluids. However, for most potential applications of nanofluids the situation of interest is flow boiling. This technical note presents first-of-a-kind data for flow boiling CHF in nanofluids. It is shown that a significant CHF enhancement (up to 30%) can be achieved with as little as 0.01% by volume concentration of alumina nanoparticles in flow experiments at atmospheric pressure, low subcooling 20° C, and relatively high mass flux 1000 kg/ m 2 s. DOI: 10.1115/1.2818787
80 citations
TL;DR: In this article, the authors measured the flow boiling heat flux on a horizontal heater that is heated from below and found that the heat flux was enhanced by as much as 180% at boiling incipience for silicon substrates coated with carbon nanotubes.
80 citations
TL;DR: In this article, the authors investigated the nonlinear dynamics of multiple parallel boiling channels with forced flows by using the Galerkin nodal approximation method and constructed stability maps for multiple-channel systems subject to a constant total mass flow rate on the parameter plane of the subcooling and phase change numbers.
79 citations