Assessing advantages and disadvantages of macro- and micro-channel flow boiling for high-heat-flux thermal management using computational and theoretical/empirical methods

Devahdhanush, V.S.; Lei, Yuchuan; Chen, Zhenqian; Mudawar, Issam

doi:10.1016/j.ijheatmasstransfer.2020.120787

Cited by 31 publications

(9 citation statements)

References 83 publications

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“…Since microchannels have a high surface-to-volume ratio, the flow behavior is greatly influenced by surface tension, which is quite different from gravity-dominated macrochannels. Microchannel heat sinks feature a compact structure, low thermal resistance, and low coolant consumption . Moreover, the microchannel with a phase change can provide a very high heat transfer capability and a uniform surface temperature distribution .…”

Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

“…However, microchannels offered better heat transfer performance at the cost of obviously higher pressure drop compared with macro-channels. Moreover, microchannels were inclined to choke owing to the high Mach number . Compared with experiments, CFD models are nonintrusive for researching this microstructured device .…”

Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

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Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Phase change is a phenomenon that has been extensively utilized in chemical engineering, energy, electronics, vehicle, and space exploration. From both the science and engineering perspectives, gaining a profound understanding of the intricacies of multiphase flow processes accompanied by heat and mass transfer due to phase change is of fundamental importance. Indeed, the computational fluid dynamics (CFD) has been increasingly applied as an effective tool to give an in-depth and efficient analysis of the phase change processes, thereby enhancing our understanding and capacity to control and optimize the phase change effects in these processes. This paper seeks to provide a comprehensive review of the utilization of CFD methodologies in the simulations of phase change flows across various applications, including temperature management, drying, separation and purification, and others. First, the CFD models at various scales that are developed to elucidate the phase change processes are summarized. Second, the noteworthy advances in the recent CFD simulation work on various phase change processes are presented, respectively. Finally, the challenges and potential prospects to facilitate the application of the phase change flow are discussed. The current review aims to offer insightful guidance for the CFD modeling of phase change processes in numerous engineering application scenarios.

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Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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“…At present, the Computational Fluid Dynamics (CFD) as numerical method is generally used to study the flow boiling of micro-channel [9][10][11]. However, CFD has the problems such as complex modeling, a great many of iteration steps, difficult convergence, long computation time and high requirement of computer hardware.…”

Section: Introductionmentioning

confidence: 99%

Simulation Research on Flow Boiling and Heat Transfer of Micro-channel for Electronic Cooling

Yang

Zhao

Huang

et al. 2022

J. Phys.: Conf. Ser.

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Micro-channel heat exchanger is a popular device for the electronic cooling. Heat transfer of flow boiling in micro-channel is a research hotspot. For the convenience of the theoretical research on micro-channel, a high efficiency simulation model on flow boiling and heat transfer of micro-channel was established. In the simulation research, the influence rules of operating conditions and thermal properties of refrigerants (working fluids) on the flow boiling were studied; the distribution rules along flow direction of characteristic parameters such as vapor quality, Heat Transfer Coefficient (HTC), pressure drop and bottom wall temperature of micro-channel T w were analyzed; the key factors on the distribution of characteristic parameters were proposed. The characteristic parameters based on the refrigerants R134a and R1234ze(E) in micro-channel were compared and researched. According to the simulation results, HTC and pressure drop of R134a are larger and smaller than those of R1234ze(E) respectively, the uniformities of HTC and T w of R134a are all better than those of R1234ze(E) respectively.

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“…They suggested that the heat transfer coefficient was dominated by the nucleate boiling under the given geometry and working conditions. Devahdhanush et al [21] compared two-phase interfacial behavior for the flow boiling in macro-and micro-channels. The heat transfer performance of micro-channels was better than that of macro-channels.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of the Effect of the Rolling Motion on the Subcooled Flow Boiling in the Subchannel

et al. 2022

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The marine environment may change the force on the fluid and inevitably influence bubble behavior and the two-phase flow in the reactor core, which are vital to the safety margin of a nuclear reactor. To explore the effect of the marine motion on the flow and heat transfer features of subcooled flow boiling in the reactor core, the volume of fluid (VOF) method is employed to reveal the interaction between the interface structure and two-phase flow in the subchannel under rolling motion. The variations of several physical parameters are obtained, including the transverse flow, the vapor volume fraction, the vapor adhesion ratio, and the phase distribution of boiling two-phase flow with time. Sensitivity analyses of the amplitude and the period of the rolling motion were performed to demonstrate the mechanisms of the influence of the rolling motion. We found that the transverse flow in the subchannel was mainly affected by the Euler force under the rolling motion. In contrast to the two-phase flow in the static state, the vapor volume fraction and vapor adhesion ratio show different characteristics under rolling motion. Additionally, the onset of significant void (OSV) point changes periodically under rolling motion.

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Assessing advantages and disadvantages of macro- and micro-channel flow boiling for high-heat-flux thermal management using computational and theoretical/empirical methods

Cited by 31 publications

References 83 publications

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Simulation Research on Flow Boiling and Heat Transfer of Micro-channel for Electronic Cooling

Numerical Study of the Effect of the Rolling Motion on the Subcooled Flow Boiling in the Subchannel

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