特殊型槽道热管启动和运行特性研究
|
摘要
通过对特殊型"Ω"形槽道热管(长2200mm,经过3次弯曲)进行测试,探究其启动和传热特性。研究表明,当热管常温启动后,冷端不做控温,热端输入一定热量,冷热两端温差保持在2K以内,热管传热性能优异;此热管若要正常工作,其最低工作温度为-15℃左右,热端最大输入功率为10W左右,此时的传热热阻为0.156K·W~(-1)。随着热沉温度的降低,热阻越来越大;随着倾斜角度的变大,热阻越来越小。此热管具有一定的传热性能。
Aiming at special "Ω"-shaped grooved heat pipe with a length of 2200 mm and have three bends, it made tests to explore the characteristics of starting and heat transfer. Research shows that when the heat pipe starts at room temperature, not controling the temperature in the cold end and inputting a certain amount of heat in the hot end, temperature difference keeps within 2 K and the heat pipe has excellent heat transfer performance; in the condition of normal working, the minimum temperature is about-15℃ and the maximum input power is about 10 W, then the thermal resistance is 0.156 K·W~(-1). With the decrease of heat sink temperature, thermal resistance increases gradually; with the increase of inclination angle, thermal resistance decreases gradually. The heat pipe has certain heat transfer performance.
Aiming at special "Ω"-shaped grooved heat pipe with a length of 2200 mm and have three bends, it made tests to explore the characteristics of starting and heat transfer. Research shows that when the heat pipe starts at room temperature, not controling the temperature in the cold end and inputting a certain amount of heat in the hot end, temperature difference keeps within 2 K and the heat pipe has excellent heat transfer performance; in the condition of normal working, the minimum temperature is about-15℃ and the maximum input power is about 10 W, then the thermal resistance is 0.156 K·W~(-1). With the decrease of heat sink temperature, thermal resistance increases gradually; with the increase of inclination angle, thermal resistance decreases gradually. The heat pipe has certain heat transfer performance.
引文
[1] 李永赞.热管技术的研究进展及其工程应用[J].应用能源技术,2008(6):45-51.
[2] 陶汉中,张红,庄骏. 槽道吸液芯热管的研究进展[J]. 化工进展,2010,29(03):403-412.
[3] 郜晓雷,凌聪,王飞,陈业高,钟毅. 热管制造的新工艺及性能测试的试验研究[J]. 机械工程学报,2017,53(10):160-165.
[4] KEMME J E.Heat pipe compatibility experiments,LA-3585-MS[R]:USA:Los Alamos Scientific Lab,1966.
[5] KEMME J E.Heat pipe design considerations,LA-4221-MS[R],1969.
[6] VASILIEV.Heat pipes in modern heatexchangers [J].Applied Thermal Engineering,2005,25(5):1-19.
[7] 张程宾,施明恒,陈永平, 等.“Ω”形轴向槽道热管的流动和传热特性[J]. 化工学报,2008(3):544-550.
[8] 高黑兵,高鹏,郑大亮, 等.“Ω”型轴向槽道热管的研究进展[J]. 热加工工艺,2013,42(20):6-10.
[9] 张程宾,陈永平,施明恒,等.“Ω”形微槽热管传热性能的实验研究[J]. 工程热物理学报,2009,30(9):1534-1536.
[10] 姚峰,陈永平,张程宾, 等.“Ω”形轴向槽道热管的启动特性[J]. 工程热物理学报,2011,32(12):2117-2119.
[11] 张任平,陈永平,施明恒. 多热源工况下燕尾形轴向槽道热管的热响应特性[J]. 宇航学报,2013,34(04):590-596.
[12] 张正芳,霍秀和,赵嘉琪. 重力辅助热管的性能及热阻的实验研究[J]. 工程热物理学报,1982(1):67-75.
[2] 陶汉中,张红,庄骏. 槽道吸液芯热管的研究进展[J]. 化工进展,2010,29(03):403-412.
[3] 郜晓雷,凌聪,王飞,陈业高,钟毅. 热管制造的新工艺及性能测试的试验研究[J]. 机械工程学报,2017,53(10):160-165.
[4] KEMME J E.Heat pipe compatibility experiments,LA-3585-MS[R]:USA:Los Alamos Scientific Lab,1966.
[5] KEMME J E.Heat pipe design considerations,LA-4221-MS[R],1969.
[6] VASILIEV.Heat pipes in modern heatexchangers [J].Applied Thermal Engineering,2005,25(5):1-19.
[7] 张程宾,施明恒,陈永平, 等.“Ω”形轴向槽道热管的流动和传热特性[J]. 化工学报,2008(3):544-550.
[8] 高黑兵,高鹏,郑大亮, 等.“Ω”型轴向槽道热管的研究进展[J]. 热加工工艺,2013,42(20):6-10.
[9] 张程宾,陈永平,施明恒,等.“Ω”形微槽热管传热性能的实验研究[J]. 工程热物理学报,2009,30(9):1534-1536.
[10] 姚峰,陈永平,张程宾, 等.“Ω”形轴向槽道热管的启动特性[J]. 工程热物理学报,2011,32(12):2117-2119.
[11] 张任平,陈永平,施明恒. 多热源工况下燕尾形轴向槽道热管的热响应特性[J]. 宇航学报,2013,34(04):590-596.
[12] 张正芳,霍秀和,赵嘉琪. 重力辅助热管的性能及热阻的实验研究[J]. 工程热物理学报,1982(1):67-75.