Effect of AEO-9 Surfactant on Start-up and Heat Transfer Performance of Pulsating Heat Pipe
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, 8...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2021-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2021.06.077 |
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| Summary: | 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%. |
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| ISSN: | 0253-4339 |