文档介绍：东南大学硕士学位论文摘要在笔记本电脑中,由于其空间和耗电量的局限性,传统的风冷已经越来越满足不了散热要求,散热性能优越的热管被普遍运用到笔记本电脑的散热系统中。散热问题关系到电脑的稳定性,本文从此问题出发,对笔记本电脑的散热进行了研究。分析了热管用于笔记本电脑 CPU散热的工作原理、工作特点,以及热管用于笔记本电脑散热的必要性。, 分析了热管的传热机理,对热管用于笔记本电脑的传热特性进行了定量计算,包括传热热阻. 总传热系数等,针对实际情况进行实例分析。针对笔记本电脑散热的特点,、声速极限、携带极限、毛细极限、冷凝极限和沸腾极限,以及对热管散热效果的影响。研究结果表明, 笔记本电脑散热热管的毛细极限相对其他传热极限要小得多。探讨了在热管工作介质确定情况下热管的传热极限与尺寸的关系,讨论了用于笔记本电脑散热的热管最佳尺寸的设计计算方法,以保证热管到达最大的传热能力。通过计算,获得了优化的热管散热有效长度和蒸汽流道直径。对笔记本散热热管的工作特性进行了数值模拟。获得了当CPU产生的热量发生变化和热管尺寸(包括有效长度和直径)变化时,热管壁温和蒸发段与冷凝段温差的变化,以及系统热阻和总传热系数的变化;分析了热管的传热极限与热管有效长度、工作温度、热管倾角之间的关系等。关键词:笔记本电脑;热管;散热;数值模拟东南大学硕士学位论文 Abstract ln thenotebook single mode of aircooling doesn’t satisfy the cooling requirement because ofthelimitofspace and pipe with excellent cooling capacity applied on notebook principle ofheatpipe and working performance when applied on notebook PC are analyzed. Thesuperiority ofheatpipe on cooling over othercooling modes heattransfer mode built,and thecorresponding quantitative calculation mechanism ofheat transferinheatpipe resistance andthermalperformance are discussed and calculated with example. According tothecharacter ofcooling tonotebook PC,all kinds oflimits toheattransfer are discussed,including stickness limit,sound limit,entrainmentlimit,capillary limit,condensation influence ofthefactors totheheattransfer calculated resultsshow thatthecapillary limitofheat transfer much smaller than otherlimitsofheat relationbetween thelimit ofheattransferandthedimension ofheatpipe discussed when theworking liquid dimension ofheatpipe applied on cooling notebook PC optimized inorder tomake heatpipe have bettercapacity on heattransfer,and theoptimized length anddiameter ofheatpipe are obtained. "1]aethermal performance ofthe heatpipe innotebook PC analyzed wall thermal resistance andtherm