Abstract
The present work investigates heat and mass transport phenomena inside a thermosyphon using computational fluid dynamics (CFD) simulations by considering water as working fluid. The CFD model was developed using the volume of fluid (VOF) approach to simulate the two-phase flow hydrodynamic during steady state operation of the thermosyphon. The predicted results were compared with the experimentally obtained temperature distribution data along the height of the thermosyphon. A good agreement was found between the predicted and measured temperature data, thus confirming the predictive capability of the computational model. The heat transfer inside the thermosyphon was analyzed using temporal variation of temperature inside the thermosyphon. The water boiling concept was used to demonstrate the phase change phenomena in the evaporator region, while film boiling was demonstrated at the condenser zone. The temperature distribution was used to estimate the thermal conductivity of the thermosyphon. The study will be helpful to address all aspects of two-phase flow hydrodynamic and heat transfer phenomena during the operation of a straight thermosyphon and suggest modifications to improve the thermal conductivity.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Abbreviations
- e:
-
Energy term (W)
- I:
-
Current (A)
- k:
-
Turbulence kinetic energy (m2/s2)
- Q:
-
Power supplied (W)
- Rth:
-
Thermal resistance of thermosyphon (K/W)
- S:
-
Source term (W/m3)
- T:
-
Temperature (K)
- \(\overline{u}\):
-
Supply velocity (m/s)
- V:
-
Voltage (V)
- σ:
-
Surface tension of the liquid (N/m)
- ρ:
-
Density of air (kg/m3)
- β:
-
Coefficient of thermal expansion (1/K)
- ε:
-
Specific rate of dissipation
References
Design of Concrete Structures Important to Safety of Nuclear Facilities, Atomic Energy Regulatory Board, India (2001)
Alyokhina S (2018) Thermal analysis of certain accident conditions of dry spent nuclear fuel storage. Nucl Eng Technol 50(5):717–723
Mishra VK, Panda SK, Sen B, Maiya MP, Rao BPC (2022) Numerical analysis of forced convection heat transfer in a nuclear fuel storage vault. Int J Therm Sci 173:107429
Schepper SCKD, Heynderickx GJ, Marin GB (2009) Modeling the evaporation of a hydrocarbon feedstock in the convection section of a steam cracker. Comput Chem Eng 33(1):122–132
Schepper SCKD, Heynderickx GJ, Marin GB (2008) CFD modeling of all gas–liquid and vapor–liquid flow regimes predicted by the Baker chart. Chem Eng J 138(1–3):349–357
Alizadehdakhel M, Rahimi M, Alsairafi AA (2010) CFD Modeling of Flow and Heat Transfer in a Thermosyphon. Int Commun Heat Mass Transf 37:312–318
Lin Z, Wang S, Shirakashi R, Winston Zhang L (2013) Simulation of a miniature oscillating heat pipe in bottom heating mode using CFD with unsteady modelling. Int J Heat Mass Transf 57(2):642–656
Jeong YS, Bang IC (2016) Hybrid heat pipe based passive cooling device for spent nuclear fuel dry storage cask. Appl Therm Eng 96:277–285
Mochizuki M, Singh R, Nguyen T, Nguyen T (2014) Heat pipe based passive emergency core cooling system for safe shutdown of nuclear power reactor. Appl Therm Eng 73(1):699–706
Xiong Z, Wang M, Gu H, Ye C (2015) Experimental study on heat pipe heat removal capacity for passive cooling of spent fuel pool. Ann Nucl Energy 83:258–263
Acknowledgements
One of the authors, Vivek K. Mishra, is grateful to the Department of Atomic Energy for the DGFS fellowship. All the authors thank the Engineering Services Group for their help during the commissioning of the experimental setup.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Mishra, V.K., Panda, S.K., Sen, B., Maiya, M.P., Samantaray, D. (2024). VOF Simulations of Evaporation and Condensation Phenomenon Inside a Closed-Loop Thermosyphon. In: Singh, K.M., Dutta, S., Subudhi, S., Singh, N.K. (eds) Fluid Mechanics and Fluid Power, Volume 5. FMFP 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-6074-3_5
Download citation
DOI: https://doi.org/10.1007/978-981-99-6074-3_5
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-99-6073-6
Online ISBN: 978-981-99-6074-3
eBook Packages: EngineeringEngineering (R0)