Numerical investigation of the use of solid or porous fins to improve heat transfer in an annular heat exchanger: Suitable thermal management of satellites
1
Department of mechanical engineering, Qom university of technology, Qom
2
Department of Mechanics, Qom University of Technology, Qom, Iran,
Abstract
Using PCMs is a suitable option in the thermal management of satellites to prevent temperature increase and improve the life of electronic components that generate heat. While changing phase, these materials store latent heat and transfer it at the right time. This article has numerically investigated the use of porous fins to improve heat transfer in PCMs. A parameter called effectiveness has been defined to compare different designs. A system with a larger value of this parameter melts more PCM in less time. The studied geometry is an annular cylinder. The space between the walls is filled with a PCM, and the inner and outer walls are at a constant temperature. The effect of different parameters, such as the length and thickness of the porous vanes, temperature boundary conditions, the type of porous vanes (permeability effect), and the type of fins, were investigated. The results show that porous blades can improve the problem of heat dissipation inside PCMs. For example, in the geometry with five porous fins (with length and thickness of 45 mm and 15 mm, respectively), the melting time is reduced to almost on-third, and it has an efficiency of 2.9.
Bahrami, H., & Saberi, M. (2024). Numerical investigation of the use of solid or porous fins to improve heat transfer in an annular heat exchanger: Suitable thermal management of satellites. Aerospace Knowledge and Technology Journal, 13(1), -.
MLA
Hamid-Reza Bahrami; Mehdi Saberi. "Numerical investigation of the use of solid or porous fins to improve heat transfer in an annular heat exchanger: Suitable thermal management of satellites". Aerospace Knowledge and Technology Journal, 13, 1, 2024, -.
HARVARD
Bahrami, H., Saberi, M. (2024). 'Numerical investigation of the use of solid or porous fins to improve heat transfer in an annular heat exchanger: Suitable thermal management of satellites', Aerospace Knowledge and Technology Journal, 13(1), pp. -.
VANCOUVER
Bahrami, H., Saberi, M. Numerical investigation of the use of solid or porous fins to improve heat transfer in an annular heat exchanger: Suitable thermal management of satellites. Aerospace Knowledge and Technology Journal, 2024; 13(1): -.
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