Fig. 1. Schematic of a closed loop pulsating heat pipe
Fig. 2. Experimental set-up: water block, cartridge heater, thermal insulation box, bath circulator, power supply, DAQ, etc.
Fig. 3. Evaporator and condenser section temperature variation of 2 mm PHP with time in 10~120 W heat input
Fig. 4. Evaporator and condenser section temperature variation of 2.5 mm PHP with time in 10~120 W heat input
Fig. 5. Evaporator and condenser section temperature variation of 3 mm PHP with time in 10~120 W heat input
Fig. 6. Evaporator and condenser section temperature variation of 2 mm PHP with time in 10~30 W heat input (regime 1)
Fig. 7. Evaporator and condenser section temperature variation of 2 mm PHP with time in 40~50 W heat input (regime 2)
Fig. 8. Evaporator and condenser section temperature variation of 2.5 mm PHP with time in 40~50 W heat input (regime 2)
Fig. 9. Evaporator and condenser section temperature variation of 3 mm PHP with time in 40~50 W heat input (regime 2)
Fig. 10. Evaporator and condenser section temperature variation of 2.5 mm PHP at 80 W heat input (regime 3)
Fig. 11. Thermal resistance of 3 different PHPs with 10~120 W heat input
Fig. 12. Thermal conductivity of 3 different PHPs and copper with 10~120 W heat input
Fig. 13. Section peak frequency and thermal resistance of 2 mm PHP with 60~120 W heat input
Fig. 14. Section peak frequency and thermal resistance of 2.5 mm PHP with 60~120 W heat input
Fig. 15. Section peak frequency and thermal resistance of 3 mm PHP with 60~120 W heat input
References
- G. P. Peterson, "An introduction to heat pipes: modeling, testing, and applications," Wiley, 1994.
- H. Akachi, US Patent, Patent Number 4921041, 1990.
- Yury F. Maydanik, Valery I. Dmitrin and Vladimir G. Pastukhov, "Compact cooler for electronics on the basis of a pulsating heat pipe," Applied Thermal Engineering, Vol. 29, 2009, pp. 3511-3517. https://doi.org/10.1016/j.applthermaleng.2009.06.005
- Jian Qu, Hui-Ying Wu and Qian Wang, "Experimental investigation of silicon-based micro-pulsating heat pipe for cooling electronics," Nanoscale and Microscale Thermophysical Engineering, Vol. 16, 2012.
- S. Khandekar, "Pulsating heat pipe based heat exchangers," The 21st International Symposium on Transport Phenomena, Kaohsiung City, Taiwan, 2010.
- Honghai Yang, Sameer Khandekar and Manfred Groll, "Performance characteristics of pulsating heat pipes as integral thermal spreaders," International Journal of Thermal Sciences, Vol. 48, 2009, pp. 815-824. https://doi.org/10.1016/j.ijthermalsci.2008.05.017
- D. Zabek, J. Taylor, V. Ayel, Y. Bertin, C. Romestant and C. R. Bowen, "A novel pyoelectric generator utilising naturally driven temperature fluctuations from OHP for waste heat recovery and thermal energy harvesting," Journal of Applied Physics, Vol. 120, 2016.
- X. M. Zhang, J. L. Xu and Z. Q. Zhou, "Experimental study of a pulsating heat pipe using FC-72, ehtanol, water as working fluids," Experimental Heat Transfer, Vol. 17, 2004, pp. 47-67. https://doi.org/10.1080/08916150490246546
- Piyanun Charoensawan, Sameer Khandekar, Manfred Groll and Pradit Terdtoon, "Closed loop pulsating heat pipes Part A; parametric experimental investigations," Applied Thermal Engineering, Vol. 23, 2003, pp. 2009-2020. https://doi.org/10.1016/S1359-4311(03)00159-5
- D. Yin, H. Rajab and H. B. Ma, "Theoretical analysis of maximum filling ratio in an oscillating heat pipe," International Journal of Heat and Mass Transfer, Vol. 74, 2014, pp. 353-357. https://doi.org/10.1016/j.ijheatmasstransfer.2014.03.018
- Honghai Yang, S. Khandekar and M. Groll, "Operational limit of closed loop pulsating heat pipes," Applied Thermal Engineering, Vol. 28, 2008, pp. 49-59. https://doi.org/10.1016/j.applthermaleng.2007.01.033
- Jiansheng Wang, He Ma and Qiang Zhu, "Effects of the evaporator and condenser length on the performance of pulsating heat pipes," Applied Thermal Engineering, Vol. 91, 2015, pp. 1018-1025. https://doi.org/10.1016/j.applthermaleng.2015.08.106
- Gi Hwan Kwon and Sung Jin Kim, "Experimental investigation on the thermal performance of a micro pulsating heat pipe with a dual-diameter channel," International Journal of Heat and Mass Transfer, Vol. 89, 2015, pp. 817-828. https://doi.org/10.1016/j.ijheatmasstransfer.2015.05.091
- Sameer Khandekar, Anant Prasad Gautam and Pavan K. Sharma, Multiple quasi-steady states in a closed loop pulsating heat pipe, International Journal of Thermal Sciences, Vol. 48, 2009, pp. 535-546 https://doi.org/10.1016/j.ijthermalsci.2008.04.004
- Xiaoyu Cui, Yue Zhu, Zhihua Li and Shende Shun, Combination study of operation characteristics and heat transfer mechanism for pulsating heat pipe, Applied Thermal Engineering, Vol. 65, 2014, pp. 394-402 https://doi.org/10.1016/j.applthermaleng.2014.01.030
- S. Khandekar, N. Dollinger and M. Groll, "Understanding operational regimes of closed loop pulsating heat pipes: an experimental study," Applied Thermal Engineering, Vol. 23, 2003, pp. 707-719 https://doi.org/10.1016/S1359-4311(02)00237-5
- S. Khandekar and M. Groll, "An insight into thermo-hydrodynamic coupling in closed loop pulsating heat pipes," International Journal of Thermal Sciences, Vol. 43, 2004, pp. 13-20 https://doi.org/10.1016/S1290-0729(03)00100-5
- Dong Xu, Laifeng Li and Huiming Liu, "Experimental investigation on the thermal performance of helium based cryogenic pulsating heat pipe," Experimental Thermal and Fluid Science, Vol. 70, 2016, pp. 61-68 https://doi.org/10.1016/j.expthermflusci.2015.08.024
- J. L. Xu and X. M. Zhang, "Start-up and steady thermal oscillation of a pulsating heat pipe," Heat Mass Transfer, Vol. 41, 2005, pp. 685-694 https://doi.org/10.1007/s00231-004-0535-3