THERMAL SCIENCE
International Scientific Journal
Thermal Science - Online First
online first only
Experiment study on dryout characteristics and thermal resistance analysis of two-phase closed thermosiphon(TPCT)
ABSTRACT
This study aims to explore the dryout characteristics of two-phase closed thermosiphon (TPCT). It involves the design and experimentation on low-liquid filled heat pipes. We investigated the effects of different fill ratios (FR), heating water temperatures, and cooling water flow rates on the start-up characteristics of TPCT. Based on the network model, we proposed an analytical expression for the thermal resistance (R) of TPCT and provided an explanation of the various thermal resistance components. This research expands our understanding of dryout and provides insights for optimizing heat pipe design and addressing heat conduction issues with low FR.
KEYWORDS
PAPER SUBMITTED: 2023-09-16
PAPER REVISED: 2023-11-07
PAPER ACCEPTED: 2023-11-08
PUBLISHED ONLINE: 2024-01-20
- Faghri A. Heat pipe science and technology. Global Digital Press, 1995
- Reay D, McGlen R, Kew P. Heat pipes: theory, design and applications. Butterworth-Heinemann, 2013
- Alizadeh M, Ganji D D. Heat transfer characteristics and optimization of the efficiency and thermal resistance of a finned thermosyphon. Applied Thermal Engineering, 2021, 183: 116136
- Alammar A A, Al-Dadah R K, Mahmoud S M. Experimental investigation of the influence of the geyser boiling phenomenon on the thermal performance of a two-phase closed ther-mosyphon. Journal of cleaner production, 2018, 172: 2531-2543
- Chen X, Jiang F, Qi G, et al. Experimental investigation on a three-phase closed ther-mosyphon with glass beads/water. Applied Thermal Engineering, 2019, 154: 157-170
- Mozumder A K, Akon A F, Chowdhury M S H, et al. Performance of heat pipe for differ-ent working fluids and fill ratios. Journal of Mechanical Engineering, 2010, 41(2): 96-102
- Guichet V, Delpech B, Khordehgah N, et al. Experimental and theoretical investigation of the influence of heat transfer rate on the thermal performance of a multi-channel flat heat pipe. Energy, 2022, 250: 123804
- Zhang M, Yan Z, Pei W, et al. Experimental study on the startup and heat transfer behav-iors of a two-phase closed thermosyphon at subzero temperatures. International Journal of Heat and Mass Transfer, 2022, 190: 122283
- Mozumder A K, Akon A F, Chowdhury M S H, et al. Performance of heat pipe for differ-ent working fluids and fill ratios. Journal of Mechanical Engineering, 2010, 41(2): 96-102
- Guichet V, Jouhara H. Condensation, evaporation and boiling of falling films in wickless heat pipes (two-phase closed thermosyphons): a critical review of correlations. International Journal of Thermofluids, 2020, 1: 100001
- Nusselt W. Die oberfluchenkondensation des wasserdampfes. Z. VDI, 1916, 60(28): 569
- Transmission H. by WH McAdams
- Kutateladze S S. Heat transfer theory fundamentals. 1963
- Butterworth C. Condensers: Basic heat transfer and fluid flow. Kakaç, S.; Bergles, AE; Mayinger, F.: Heat exchangers: Thermal-hydraulic fundamentals and design. Washington: Hemisphere, 1981: 289-313
- Rohsenow W M, Hartnett J P, Cho Y I. Handbook of heat transfer. New York: McGraw-Hill, 1998
- Cengel Y A, Klein S, Beckman W. Heat transfer: a practical approach. Boston: WBC McGraw-Hill, 1998
- Nusselt W. Die oberfluchenkondensation des wasserdampfes. Z. VDI, 1916, 60(28): 569
- Wilke W. Wärmeübergang an Rieselfilme: Mitteilung d. Forschungsgruppe f. Wärme-u
- Chun K R, Seban R A. Heat transfer to evaporating liquid films. 1971
- Fujita T, Ueda T. Heat transfer to falling liquid films and film breakdown—I: Subcooled liquid films. International Journal of Heat and Mass Transfer, 1978, 21(2): 97-108