| 摘要: |
| 本文针对脂肪醇聚氧乙烯醚（AEO-9）非离子表面活性剂，在加热功率为40、60、80、100、120 W，AEO-9质量分数为10、20、30、40 mg/kg工况下，测试了脉动热管的启动时间、热阻和蒸发段温度波动，并与去离子水进行对比。结果表明：AEO-9可以缩短启动时间，启动时间随AEO-9质量分数的增大先减小后增大，在加热功率为40 W、质量分数为20 mg/kg时启动时间最多缩短了29.2%；AEO-9可以减小热阻，加热功率较小时（≤60 W），热阻随AEO-9质量分数的增大而增大；加热功率较大时（≥100 W），热阻随AEO-9质量分数的增大而减小；在加热功率为40 W、质量分数为10 mg/kg时热阻最多减小了35.8%；AEO-9可以减小蒸发段温度波动，且质量分数越高波动越小，在加热功率为120 W、质量分数为40 mg/kg时温度波动幅度最多减小了68.4%。 |
| 关键词: 脉动热管 表面活性剂 启动时间 传热特性 |
| DOI： |
| 投稿时间：2021-04-30 修订日期：2021-08-11
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| 基金项目:国家自然科学基金（11874326）资助项目。 |
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| Effect of AEO-9 Surfactant on Start-up and Heat Transfer Performance of Pulsating Heat Pipe |
|
Dong Junbiao1, Yao Ye1, Liu Shiqing2
|
| (1.Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University;2.College of Physics and Electronic Information Engineering, Zhejiang Normal University) |
| Abstract: |
| In this study, the start-up time, thermal resistance, and evaporation temperature fluctuation of a pulsating heat pipe were experimentally studied based on the influence of alcohol polyoxyethylene ether nonionic surfactant (AEO-9). The experimental conditions included heating powers of 40 W, 60 W, 80 W, 100 W, and 120 W and AEO-9 mass concentrations of 10 mg/kg, 20 mg/kg, 30 mg/kg, and 40 mg/kg. The results indicate that AEO-9 can reduce the start-up time compared with deionized water; the start-up time first decreases and then increases as the AEO-9 mass concentration increases. When the heating power is 40 W and the AEO-9 mass concentration is 20 mg/kg, the start-up time is reduced by a maximum of 29.2%. AEO-9 can also reduce the thermal resistance. At a low heating power (≤60 W), the thermal resistance increases as the AEO-9 mass concentration increases. At a high heating power (≥100 W), the thermal resistance decreases as the AEO-9 mass concentration increases. When the heating power is 40 W and the AEO-9 mass concentration is 10 mg/kg, the thermal resistance is reduced by a maximum of 35.8%. AEO-9 can reduce the evaporation temperature fluctuation, and the fluctuation amplitude decreases as the AEO-9 concentration increases. When the heating power is 120 W and the AEO-9 mass concentration is 40 mg/kg, the temperature fluctuation amplitude is reduced by a maximum of 68.4%. |
| Key words: pulsating heat pipe surfactant start-up time heat transfer characteristics |
