【摘要】 集成型升华驱动冷板(Integrated Sublimator Driven Coldplate, ISDC)是深空航天大热耗新型散热研究热点，通过COMSOL Multiphysics重点研究集成型升华驱动冷板水-醇混合传热特性，分析不同散热机制下乙二醇浓度、热流密度、循环水进口质量流量和给水进口温度对ISDC传热特性的影响。结果表明，增大乙二醇浓度会增强ISDC的散热效果，乙二醇浓度为20%,ISDC的冷却板表面温度比无醇时低1.54 K;随着热流密度的逐渐增加，ISDC的散热能力逐渐降低；在ISDC模式下增加循环水进口质量流量可以增强ISDC的散热能力，但在升华模式下其散热效果相反；减小多孔管厚度可以增强ISDC的散热效果。更多还原

【Abstract】 Integrated Sublimation Driven Coldplate(ISDC) is a hot research topic in the field of high heat consumption and new heat dissipation in deep space. The heat transfer characteristics of water-alcohol mixture of cold plate driven by integrated sublimation was studied by COMSOL Multiphysics, and the effects of glycol concentration, heat flux, circulating water inlet mass flow rate and feed water inlet temperature on the heat transfer characteristics of ISDC under different heat dissipation mechanisms were analyzed. The results show that increasing the concentration of ethylene glycol would enhance the heat dissipation effect of ISDC. When the concentration of ethylene glycol is 20%, the surface temperature of the cooling plate of ISDC is 1.54 K lower than that without alcohol; As the heat flux density gradually increases, the heat dissipation capacity of ISDC gradually decreases; Increasing the inlet mass flow rate of circulating water in ISDC mode can enhance the heat dissipation capacity of ISDC, but its heat dissipation effect is opposite in sublimation mode; Reducing the thickness of porous tubes can enhance the heat dissipation effect of ISDC.更多还原