TY - GEN
T1 - CFD ANALYSIS OF A GROOVED HEAT PIPE FOR SPACE APPLICATION
AU - Uddin, Salman Hemayet
AU - Islam, Md
AU - Mone, Shital
AU - Jarrar, Firas
AU - Fernandes, Ryan
AU - Fatt, Yap
N1 - Funding Information:
The authors wish to acknowledge the support provided by the Khalifa University of Science and Technology, UAE through Grant (CIRA 2020-057) and UAE Space Agency and the Al Yah Satellite Communications Company (Yahsat). Authors also acknowledge the Almesbar High Performance Computing (HPC) resource facility of Khalifa University of Science and Technology.
Publisher Copyright:
© 2022 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 2022
Y1 - 2022
N2 - Heat dissipation in space applications is very much necessary. For example, a satellite works under an extreme temperature environment depending on the satellite's position in the orbit. Apart from thermal energy from the sun, the electronic component in the satellite itself generates heat as well. To maintain the temperature of the components within their operational range, a grooved heat pipe (GHP) is one of the best solutions. Within GHP, capillary action plays a major role to transfer the liquid from the condenser side to the evaporator side under a near-zero gravitational environment. This paper focuses on the numerical simulation of heat and mass transfer in GHP for space application. The Computational Fluid Dynamics (CFD) simulation is performed using Ansys Fluent software. The omega-shaped axial micro-channelled GHP made from aluminium is considered for this study. The working fluid in the heat pipe is ammonia. The volume-of-fluid (VOF) multiphase model along with the Lee model equation is used to perform the mass transfer prediction. The effects of different heat load for a 25% filling ratio (FR) are studied. This paper mainly focuses on the fluid flow development in the initial 40s of the GHP operation for a specified percentage of FR and heat load. The CFD simulations give much more insights of the heat and mass transfer phenomena, which would not possible to obtain by experimentation. The results like pressure, velocity, temperature, and volume fraction profiles inside the GHP along the length were studied.
AB - Heat dissipation in space applications is very much necessary. For example, a satellite works under an extreme temperature environment depending on the satellite's position in the orbit. Apart from thermal energy from the sun, the electronic component in the satellite itself generates heat as well. To maintain the temperature of the components within their operational range, a grooved heat pipe (GHP) is one of the best solutions. Within GHP, capillary action plays a major role to transfer the liquid from the condenser side to the evaporator side under a near-zero gravitational environment. This paper focuses on the numerical simulation of heat and mass transfer in GHP for space application. The Computational Fluid Dynamics (CFD) simulation is performed using Ansys Fluent software. The omega-shaped axial micro-channelled GHP made from aluminium is considered for this study. The working fluid in the heat pipe is ammonia. The volume-of-fluid (VOF) multiphase model along with the Lee model equation is used to perform the mass transfer prediction. The effects of different heat load for a 25% filling ratio (FR) are studied. This paper mainly focuses on the fluid flow development in the initial 40s of the GHP operation for a specified percentage of FR and heat load. The CFD simulations give much more insights of the heat and mass transfer phenomena, which would not possible to obtain by experimentation. The results like pressure, velocity, temperature, and volume fraction profiles inside the GHP along the length were studied.
KW - Filling Ratio
KW - Grooved Heat Pipe
KW - Lee Model
KW - Microchannel
KW - zero gravity
UR - https://www.scopus.com/pages/publications/85139788357
U2 - 10.1115/FEDSM2022-87018
DO - 10.1115/FEDSM2022-87018
M3 - Conference contribution
AN - SCOPUS:85139788357
T3 - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
BT - Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC)
T2 - ASME 2022 Fluids Engineering Division Summer Meeting, FEDSM 2022
Y2 - 3 August 2022 through 5 August 2022
ER -