Study on heat transfer properties of aqueous ethanol pulsating heat pipe

被引:4
|
作者
Shi W. [1 ]
Li W. [1 ]
Pan L. [1 ]
Tan X. [1 ]
Yun H. [1 ]
机构
[1] Department of Thermal Energy and Refrigeration Engineering, Tianjin University
关键词
Aqueous ethanol; Ethanol; Heat transfer performances; Inclination angle;
D O I
10.3901/JME.2011.24.117
中图分类号
学科分类号
摘要
With aqueous ethanol of 50% volume fraction as working fluid and filling ratio of 50%, heat transfer performances of multi-loop pulsating heat pipe (PHP) are studied by experiment and mechanism. Heat transfer effects are compared between aqueous ethanol and ethanol. The results show that thermal resistance of PHP with aqueous ethanol is lower than that with ethanol and the maximum of heating power with aqueous ethanol is higher than that with ethanol obviously. The minimum of thermal resistance with working fluid of aqueous ethanol and inclination angle of 90° is about 0.1°C/W, and the maximum of heating power is about 300 W. Thermal resistance with working fluid of ethanol and inclination angle of 60° is 1.34~1.49 times higher than that with aqueous ethanol, and the ratio with inclination angle of 30° is 1.28~1.50. © 2011 Journal of Mechanical Engineering.
引用
收藏
页码:117 / 121
页数:4
相关论文
共 11 条
  • [1] Cao B., Li W., Effects of liquid receiver on the start up and heat transfer performance of the pulsating heat pipe, Journal of Chinese Society of Power Engineering, 30, 11, pp. 861-865, (2010)
  • [2] Wang Y., Li W., Experimental investigations on the influence of heating condition and inclination angle on stable operation of a single loop pulsating heat pipe, Proceedings of the CSEE, 31, 11, pp. 62-67, (2010)
  • [3] Wang Y., Li W., Operation performance of a closed loop pulsating heat pipe with parallel channels, Journal of Chinese Society of Power Engineering, 31, 4, pp. 273-277, (2011)
  • [4] Yang H., Khandekar S., Groll M., Experimental investigation of the flow patterns in a single closed loop pulsating heat pipe, Fluid Machinery, 35, 1, pp. 60-63, (2007)
  • [5] Rittidech S., Pipatpaiboon N., Terdtoon P., Heat-transfer characteristics of a closed-loop oscillating heat-pipe with check valves, Applied Energy, 84, 5, pp. 565-577, (2007)
  • [6] Rittidech S., Terdtoon P., Murakami M., Et al., Correlation to predict heat transfer characteristics of a closed-end oscillating heat pipe at normal operating condition, Applied Thermal Engineering, 23, 4, pp. 497-510, (2003)
  • [7] Qu W., Ma H.B., Theoretical analysis of startup of a pulsating heat pipe, International Journal of Heat and Mass Transfer, 6, pp. 2309-2316, (2007)
  • [8] Zhou Y., Ma H., Scale effects on startup and operation of looped pulsating heat pipe, Journal of Engineering Thermophysics, 28, 1, pp. 140-142, (2007)
  • [9] Lin Y.H., Kang S.W., Chen H.L., Effect of silver nano-fluid on pulsating heat pipe thermal performance, Applied Thermal Engineering, 28, 11-12, pp. 1312-1317, (2008)
  • [10] Meena P., Rittidech S., Poomsa-Ad N., Application of closed-loop oscillating heat-pipe with check valves (CLOHP/CV) air-preheater for reduced relative-humidity in drying systems, Applied Energy, 84, 5, pp. 553-564, (2007)