高温热管碱金属工质的蒸发弯月面区域微观传热特性
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马莎莎, 丁圣洁, 刘利民, 赵长颖, 顾汉洋, 龚帅
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Micro-Scale Heat Transfer Characteristics of Evaporating Meniscus for Alkali Metals in High-Temperature Heat Pipes
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MA Shasha, DING Shengjie, LIU Limin, ZHAO Changying, GU Hanyang, GONG Shuai
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表1 水、钾、钠及锂的物性参数 (pv = 1 atm)
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Tab.1 Thermophysical properties of water,potassium,sodium, and lithium (pv = 1 atm)
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| 水参数 | 取值 | 水参数 | 取值 | | Tsat /K | 373.15 | ρl/(kg·m-3) | 958.35 | | A/J | 6.45×10-21 | μl /(Pa·s) | 2.82×10-4 | | ˆσ | 1 | ρv/(kg·m-3) | 0.598 1 | | σ/(N·m-1) | 0.058 9 | λl/(W·m-1·K-1) | 0.679 1 | | hlv/(J·kg-1) | 2.256 5×106 | Rg/(J·kg-1·K-1) | 461.89 | | 碱金属参数 | 取值 | | 钾 | 钠 | 锂 | | Tsat/K | 1 032.40 | 1 159.30 | 1 616.80 | | A/J | 1.0×10-20 | 1.0×10-20 | 1.0×10-20 | | ˆσ | 1 | 1 | 1 | | σ/(N·m-1) | 0.072 0 | 0.116 1 | 0.236 5 | | hlv/(J·kg-1) | 1.870 0×106 | 3.867 1×106 | 1.927 8×107 | | ρl/(kg·m-3) | 663.49 | 739.82 | 399.60 | | μl/(Pa·s) | 1.30×10-4 | 1.56×10-4 | 1.61×10-4 | | ρv/(kg·m-3) | 0.506 4 | 0.283 9 | 0.060 8 | | λl/(W·m-1·K-1) | 30.259 4 | 48.933 8 | 69.002 9 | | Rg/(J·kg-1·K-1) | 212.63 | 361.48 | 1 204.93 |
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