Theoretical and Experimental Investigation of Two-Phase Sub-Cooled Heat-Pipe at Different Regimes
DOI:
https://doi.org/10.48165/Keywords:
Heat-pipe, Sub cooled, Heat Pipe Simulation, transient, Steady-stateAbstract
The development of novel sub-cooled two-phase thermosyphon or heat-pipe devices is crucial for improving heat transfer efficiency. The properties are analyzed by the application of theoretical modeling and experimental observations of the sub-cooled heat loop during the heating-up, steady-state, and cooling-down stages. The heating rate effectiveness, cooling rate, and evaporator length of the sub-cooled heat-pipe are experimentally examined in the heating-up, steady-state, and cooling-down modes. The dynamic model of the sub-cooled heat-pipe is crucial for several applications including irregular operation in the current practical inquiry. The objective of this research is to develop a theoretical framework that appropriately models the dynamic features of the double-tube evaporator. This will be accomplished by analyzing several transient parameters during the warm-up, steady-state, and cool-down stages of operation. The model accurately replicates the phase and temperature characteristics of a sealed, sub-cooled heat-pipe that contains two distinct phases. The experimental results of the practical arrangement, which utilizes a thermal evaporator wall and a working fluid, exhibit a straightforward exponential pattern. The experimental measurements and theoretical model show a strong agreement.
References
Chen, Y.; Groll, M.; Mertz, R.; Maydanik, Y.F. and Vershininb, S.V. (2006): Steady-state and transient performance of a miniature loop heat pipe. Int. J. Therm. Sci., 45: 1084.
Chen, X.; Ye, H.; Fan, X.; Ren, T. and Zhang, G. (2016): A review of small heat pipes for electronics. Appl. Therm. Eng., 96: 1-17.
Dobson, R.T. and Ruppersberg, J.C. (2007): “Flow and heat transfer in a closed loop thermosyphon. Part II – theoretical simulation. J. Ener. South. Af., 18: 41.
Dobson, R.T. and Ruppersberg, J.C. (2007): Flow and heat transfer in a closed loop thermosyphon. Part I – theoretical simulation”, Journal of Energy in Southern Africa., 18: 32 – 40.
El-Genk, M.S. and Huang, L. (1993): An experimental investigation of the transient response of a water heat pipe. Int. J. Heat Mass Transf., 36: 3823.
Farsi, H.; Joly, J.; Miscevic, M.; Platel, V. and Mazet, N. (2003): An experimental and theoretical investigation of the transient behavior of a two-phase closed thermosyphon. Appl. Ther. Eng., 23: 1895.
Harley, C. and Faghri, A. (1994): Complete transient two dimensional analysis of two-phase closed thermosyphons including the falling condensate film. J. Heat Trans. Trans. ASME., 116: 418.
Hua, Z.; Jian-xin, W.; Qiao-hui, Z. and Chuan-jing, T. (2004): Experimental study on transient behavior of semi-open two phase thermosyphon. J. Zhejiang Univ. Sci., 5(12): 1565.
Huang, L; Elgenk, M.S. and Tournier, J. (1993): Transient performance of an inclined water heat pipe with a screen wick. Heat Pipes and Capillary Pumped Loops, ASME Heat Transfer Division., 236: 87-92.
Hussein, H.M.S. (2002): Optimization of a natural circulation two phases closed thermosyphon flat plate solar water heater. Energy Conversion and Management., 44: 2341-2352.
Imura, H.; Koito, Y.; Mochizuki, M. and Fujimura, H. (2005): Start-up from the frozen state of two-phase thermosyphons. App. Therm. Eng., 25: 2730.
Ji, Y.; Yuan, D.; Hao, Y.; Tian, Z.; Lou, J. and Yunyun W. (2020): Experimental study on heat transfer performance of high temperature heat pipe with large length-diameter ratio for heat utilization of concentrated solar energy. Appl. Therm. Eng., 215: 118918.
Kamel; Shamloul, M.; Sadaawy, M. and Zoklot, A. (2006): Thermal Characteristics of The Closed Two-phase Thermosyphon with Inner Tube. M.Sc. thesis, Zagazig University.
Kang, Z.; Hong, Y.; Jiang, S. and Fan, J. (2023): Composite filament with super high effective thermal conductivity, Mater. Today Phys., 34: 101067.
Kwon, C. H.; Kwon, H.S.; Oh, H.U. and Jung, E. G. (2023): “Experimental investigation on acceleration of working fluid of heat pipe under bypass line operation. Case Study Thermal. Eng., 53: 103742.
Legierski, J.; Wie_cek, B. and Mey, Gi. (2006): Measurements and simulations of transient characteristics of heat pipes. Microelectr. Reliab., 46: 109.
Li, Y.; Li, N.; Shao, B.; Dong, D. and Jiang, Z. (2023): Theoretical and experimental investigations on the supercritical startup of a cryogenic axially Ω-shaped grooved heat pipe. Appl. Therm. Eng., 222: 119951.
Li, Z.; Zhang, H.; Huang, Z.; Zhang, D. and Wang, H. (2022): Characteristics and optimization of heat pipe radiator for space nuclear propulsion spacecraft, Prog. Nucl. Energy., 150: 104307.
Lin, L. and Faghri, A. (1998): An analysis of two-phase flow stability in a thermosyphon with tube separator. Appl. Therm. Eng., 18: 441.
Liu, J.; Yu, D.; Chen, G.; Shah, S.; Li, T. and Pan, C. (2023): Numerical analysis of transient heat and mass transfer for a water heat pipe under non-uniform heating conditions. Ann. Nucl. Energy., 193.
Parand, R.; Rashidian, B.; Ataei, A. and Shakiby, Kh.; (2009): Modeling the Transient Response of the Thermosyphon Heat Pipe. J. Appl. Sci., 9: 1531.
Patel, V.K. (2018): An efficient optimization and comparative analysis of ammonia and methanol heat pipe for satellite application, Energy Convers. Manag., 165: 382–395.
Ramos, J.I. and Dobran, F. (1986): Stability analysis of a closed thermosyphon model. Appl. Math Mod., 10: 61.
Reed, J.G. and Tien, C.L. (1987): Modeling of the two-phase closed thermosyphon. J. Heat Trans., 109: 722.
Saadawy, M.S.; Abo El-Nasr, M.M. and Abd El-Aziz, M. (2004): Feasibility of The New Type- The Closed Two-Phase Double Tube Thermosyphon (CTP- DTT): Performance Study. Sci. Bull. Fac. Eng. Ain Shams Univ., 39(3): 923.
Saadawy, M.S.; Abo El-Nasr, M.M. and Abd El-Aziz, M. (2004): Investigation of boiling Heat Transfer Characteristics of Double-Tube Thermosyphon (DTT). 13th Int. Heat Pipe Conf. Shangai, Chaina., September 21-25: 333.
Silverstein, C.C. (1992): Design and Technology of Heat Pipes for Cooling and Heat Exchange. Hemisphere Publishing Corporation, Washington (U.S.A.). https://doi. org/10.1201/9780367813598
Tian, Z.; Liu, X.; Wang, C.; Zhang, D.; Tian, W.; Qiu, S. and Su, G.H. (2021): Experimental investigation on the heat transfer performance of high-temperature potassium heat pipe for nuclear reactor. Nuc. Eng. Des., 378: 111182.
Wang, G.S.; Song, B. and Liu, Z.H. (2010): Operation characteristics of cylindrical miniature grooved heat pipe using aqueous CuO nanofluids. Exp. Therm Fluid Sci., 34: 1415.
Wang, Y. and Vafai, K. (2000): Transient characterization of flat plate heat pipes during startup and shutdown operations. Int. J. Heat Mass Trans., 43: 2641.
Weragoda, D.M.; Tian, G.; Burkitbayev, A.; Lo, K.H. and Zhang, T.A. (2023): Comprehensive review on heat pipe-based battery thermal management systems. Appl. Therm. Eng., 18: 120070.
Whalley, P.B. (1989): Boiling Condensation and Gas-Liquid Flow. Department of Engineering Science. University of Oxford: p. 124-135.
Zeghari, K.; Louahlia, H.; Tiffonnet, A.L. and Schaetzel, P. (2023): Micro-grooved circular miniature heat pipe for thermal management: Experimental and analytical investigations. Therm. Sci. Eng. Progress., 40: 101714.
Zhang, Z.; Chai, X.; Wang, C.; Sun, H.; Zhang, D.; Tian, W.; Qiu, S. and Su, G.H. (2021): Numerical investigation on startup characteristics of high temperature heat pipe for nuclear reactor. Nuc. Eng. Des., 378: 111180.
Zhanga, C.; Chen, Y.; Shi, M. and Peterson, G.P. (2009): Optimization of heat pipe with axial “Ω”-shaped micro grooves based on a niched Pareto genetic algorithm (NPGA). Appl. Therm. Eng., 29: 3340.
Zuo, Z. J. and Faghri, A. (1998): A network thermodynamic analysis of the heat Pipe Int. J. Heat Mass Trans., 41: 1473.
Downloads
Published
Issue
Section
License
Copyright (c) 2024 M Elsayed, A Abd El Badie, M S Mansour, M M Abdel Raouf , M A Eid (Author)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
