禦寒手套在許多地方扮演重要的角色，尤其是氣候嚴寒的地區。本研究將異向性熱傳導材料之特性應用於禦寒手套上，企圖將覆蓋於保暖衣物內之前臂熱量，傳導至較容易失去溫度的手部，以提升手套性能。
本研究以數值模擬方式分析在自然對流的環境下，加入導熱層之手套對於手部溫度之影響。結果顯示加入導熱層之手套皆能有效提升手部溫度，相較於無導熱層手套，最低溫能提升9~13℃；在固定手套厚度的條件下，導熱層與隔熱層彼此互相競爭消長且有最佳配置方案存在；導熱層之熱傳導係數越高或厚度越厚，溫度分布會出現越均勻的趨勢。在手套總厚度為5mm條件下，當導熱層之水平熱傳導係數為300 W/m∙K時，導熱層厚度0.3mm便能維持手部溫度於23.5℃以上，而厚度1.8mm則是最佳配置方案。另外，將模型以水平拇指朝上、垂直手指朝上及垂直手指朝下的放置方式，使手指附近之邊界層型態有所差別，發現垂直手指朝下時，手部最低溫度皆出現在中指末端，而邊界層造成的影響如同隔熱層一般，厚度越厚則保溫效果更明顯，致使手指溫度提升幅度越大。

Cold protection gloves are very important in cold regions. This study applies a layer of anisotropic material, with thermal properties to efficiently transfer heat from arm to hand and hence to improve the performance of the gloves, in cold protection gloves.
In this study, how the thermal conductive layer of the gloves influences the hand temperature at a steady state under natural convection is analyzed. The results show that the thermal conductive layer can keep hands in a warmer condition, and 9~13℃ can be raised at the location of minimum temperature compared to cases of non-conductive gloves. There exists an optimal configuration at a fixed thickness of glove. The higher thermal conductivity or thicker thickness is, the more heat flux is transferred, and thus the more uniform distribution of temperature is. When horizontal thermal conductivity of conductive layer is 300 W/m∙K, and total glove thickness is 5mm, 1.8mm is the best thickness of conductive layer and 0.3mm thick can keep hand’s temperature above 23.5℃. Testing the model in different positions as opposed to gravity makes us know the effect of the boundary layer on the glove surface because it is similar to the thermal insulation layer of glove. The minimum temperature is found at the end of middle finger when the hand is pointed down.

摘要 I
ABSTRACT II
致謝 III
目錄 IV
第一章 緒論 1
1-1 前言 1
1-2 手套簡介 3
1-3 石墨與石墨烯簡介 4
1-4 異向性熱傳導簡介 6
1-5 文獻回顧 7
第二章 基礎理論 10
2-1 手部 10
2-1-1 手部構造 10
2-1-2 手部性能 10
2-1-3 冷環境中手部反應 11
2-2 石墨材料的結構、特性與製備 12
2-2-1 石墨 12
2-2-2 石墨烯 13
2-2-3 石墨與石墨烯之製備 14
2-3 異向性熱傳導 16
2-4 保暖手套之布料科技與認證標準 19
2-4-1 布料科技 19
2-4-2 歐洲標準EN511 19
第三章 研究方法 22
3-1 模擬軟體 22
3-2 模型 23
3-2-1 手部與手臂之幾何 23
3-2-2 手套配置 25
3-2-3 環境狀況與穩態假設 26
3-2-4 固體區域近似假設 27
3-2-4-1 手臂定溫邊界與手部線性熱源假設 27
3-2-4-2 異向性材料熱傳導性質之數值近似 30
3-2-4-3 統御方程式 31
3-2-5 流體區域狀態 32
3-2-5-1 統御方程式 32
3-2-5-2 Rayleigh number 32
3-2-6 性質參數 33
3-3 分析目標 34
3-4 數值可靠度 35
第四章 結果與討論 39
4-1 導熱層厚度與熱傳導性能 41
4-1-1 三種手套配置方案 41
4-1-2 手指部分無導熱層 53
4-1-3 提高導熱層厚度配置之解析度 55
4-2 模型放置方向 57
4-2-1 流場概況 57
4-2-2 不同放置方向對溫度之影響 59
4-3 強制對流 64
第五章 結論與未來展望 67
5-1 結論 67
5-2 未來展望 68
參考文獻 69

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