A highly self-adaptive cold plate for the single-phase mechanically pumped fluid loop for spacecraft thermal management

Wang, Jixiang; Li, Yunze; Zhang, Hongsheng; Wang, Shengnan; Liang, Yi-Hao; Guo, Wei; Yang, Liu; Tian, Shaoping

doi:10.1016/j.enconman.2015.12.051

Cited by 43 publications

(10 citation statements)

References 20 publications

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“…Organic materials such as paraffin can charge and discharge energy repeatedly without phase segregation and degradation of latent heat [31]. Hence the latter one has been proven to be the first choice when applied in the on-board thermal management system [32].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the thermal control effects of phase change material based packaging strategy for on-board permanent magnet synchronous motors

Wang

et al. 2016

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of the thermal control effects of phase change material based packaging strategy for on-board permanent magnet synchronous motors

Wang

et al. 2016

Energy Conversion and Management

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“…In the past, low-temperature PCMs were unsuitable for cooling electronic equipment due to their low thermal conductivity. Consequently, research on phase change heat transfer predominantly focused on the thermal enclosure of buildings [7][8][9], refrigeration and cooling [10][11][12][13], and aerospace battery heat storage [14,15]. However, the recent development of innovative PCM fabrication technology has significantly improved the thermal conductivity of these materials [16,17].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response of Phase Change Heat Exchange Unit with Layered Porous Media for Pulsed Electronic Equipment

Zhang,

Zhang

2024

Aerospace

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Effective heat dissipation challenges transient high-power electronic devices in hypersonic vehicle cabins. This study introduces a Phase Change Heat Exchange Unit with Layered Porous Media (PCHEU–LPM) employing pulsed heat flow at the top and forced convection at the bottom. The primary aim was a comparative parametric study analyzing the thermal response of the heating surface under pulsed heat flow conditions. The geometric model was generated using electron microscopy images of manufactured objects and the numerical model was established based on the enthalpy–porosity method. Numerical simulations explored amplitude and frequency effects on pulsed thermal excitation, evaluating temperature and phase fields. A comprehensive time-frequency transformation assessed the temperature response. The results indicated an initial decrease and subsequent increase in interface temperature fluctuation with pulse heat flux amplitude growth. Temperature field uniformity correlated with natural convection strength in two-phase and liquid-phase regions. At mid and low frequencies, the phase change process increasingly suppressed interface temperature fluctuations. Optimal pulse thermal excitation selection was crucial for minimizing temperature fluctuations while maintaining the interface temperature within the expected phase transition range. In conclusion, a novel design concept is posited herein, aiming to enhance surface temperature uniformity and broaden the applicability of electronic devices through the manipulation of porosity rates.

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“…Other types of temperature-driven self-adaptive valves have been reported in the literature. Wang et al [12] used a wax thermostatic valve in a fluid loop for spacecraft thermal management, demonstrating that it is possible to obtain quick control of the instabilities originated in a thermostat valve. These instabilities, which appear in the thermostatic control, are an important issue that causes overheating, oscillatory behavior, and even chaos, and are known as the "thermostat problem" [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of a MEMS-Based Self-Adaptive Microfluidic Cooling Device

et al. 2021

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This study presents a thermal analysis of a temperature-driven microfluidic cell through a nonlinear self-adaptive micro valve that provides the mechanisms for the system to maintain a given critical temperature in an efficient way. For the description of the dynamics of the microfluidic cell, a system of two ordinary differential equations subjected to a nonlinear boundary condition, which describes the behavior of the valve, is proposed. The solution of the model, for determined conditions, shows the strong nonlinearity between the overall thermal resistance of the device and the heat flux dissipated due to the action of the thermostatic valve, obtaining a variable thermal resistance from 1.6 × 10−5 to 2.0 × 10−4 Km2/W. In addition, a stability analysis of the temperature-driven microfluidic cell is presented. The stability of the device is essential for its proper functioning and thus, to prevent its oscillating behavior. Therefore, this work focuses on assessing the range of design parameters of the self-adaptive micro valve to produce a stable behavior for the entire system. The stability analysis was performed by studying the linear perturbation around the stationary solution, with the model solved for various heat flows, flow rates, and critical temperatures. Finally, a map of the design parameters space, which specifies the region with asymptotic stability, was found. In this map, the critical temperature (temperature at which the valve initiates the buckling) plays and important role.

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A highly self-adaptive cold plate for the single-phase mechanically pumped fluid loop for spacecraft thermal management

Cited by 43 publications

References 20 publications

Experimental investigation of the thermal control effects of phase change material based packaging strategy for on-board permanent magnet synchronous motors

Experimental investigation of the thermal control effects of phase change material based packaging strategy for on-board permanent magnet synchronous motors

Dynamic Response of Phase Change Heat Exchange Unit with Layered Porous Media for Pulsed Electronic Equipment

Thermal Analysis of a MEMS-Based Self-Adaptive Microfluidic Cooling Device

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