Abstract
CFD-BASED STUDY ON HEAT TRANSFER ENHANCEMENT BEHIND A PROJECTION IN A MINIATURIZED FLOW CHANNEL BY PULSATING FLOW
Highlights
Due to an increase of demanding of energy saving to build a sustainable society and further improvement of performance and functions of products such as electrical vehicles, air conditioning systems and electronic equipment, an innovation of heat transfer enhancement technology by forced convection is strongly demanded (e.g., Jaluria et al, 2020)
In order to enhance heat transfer in the miniaturized channel while inhibiting pressure drop increase, we evaluated the possibility of heat transfer enhancement by pulsating flow in a simple square duct and a duct with a square projection, which can be used as heat transfer enhancement devices in a narrow duct
We investigate the effect of pulsating flow on heat transfer in the case of Non-projection model
Summary
Due to an increase of demanding of energy saving to build a sustainable society and further improvement of performance and functions of products such as electrical vehicles, air conditioning systems and electronic equipment, an innovation of heat transfer enhancement technology by forced convection is strongly demanded (e.g., Jaluria et al, 2020). Forced convection by air or water is widely used for removing heat from electronic equipment (e.g., Panchal et al, 2017). The mounting density of electrical devices has significantly increased whereas the applicable cooling method has become limited because there is little space to mount cooling devices (Ditri et al, 2015; Fukue et al, 2010; Yang et al, 2015). In this regard, a novel heat exchanger that features high heat exchange performance and small dimensions is desired against the increase of heat dissipation in miniature devices in the near future. A novel technique that can enhance heat transfer in narrow flow passages while inhibiting the increase of pressure drop should be developed
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