Abstract
Rapid advancements in technology have led to the miniaturization of electronic devices which typically dissipate heat fluxes in the order of 100 W/cm2. This has brought about an unprecedented challenge to develop efficient and reliable thermal management systems. Novel cooling technologies such as Two-Phase Thermosyphons that make use of nanofluids provide a promising alternative to the use of conventional systems. This article analytically estimates the effects caused by nanoparticles that deposit on the evaporator surface and their effect on the heat transfer process.
Highlights
It is estimated that air-based cooling infrastructures consume up to 45% of the total power [1] in data centers
The present article focuses on gaining insights into the heat transfer process in the evaporator by developing an analytical model of TPT and analyse effects induced by nanoparticles on the heat transfer process
15] following a numerical methodology detailed in [16]. The outputs of this model namely, equilibrium mass flow rate and evaporator exit flow quality can be used to evaluate the thermal performance of the evaporator. This is quantified in terms of its two-phase heat transfer coefficient which consists of nucleate and convective boiling mechanisms and is expressed as [17]
Summary
It is estimated that air-based cooling infrastructures consume up to 45% of the total power [1] in data centers. This article analytically estimates the effects caused by nanoparticles that deposit on the evaporator surface and their effect on the heat transfer process. This is quantified in terms of its two-phase heat transfer coefficient (htp) which consists of nucleate (hnb) and convective boiling (hcb) mechanisms and is expressed as [17]
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