The heat transfer and fluid flow due to the interaction between the radiation and convective modes is examined. Also, the irreversibility processes within the considered system is calculated based on the second law of the thermodynamic. The Nano–Encapsulated Phase Change Materials (NEPCM) in which their core is nonadecane and their shell is polyurethane are used to formulate the worked suspension. The flow domains are prismatic enclosures and two designs (D1 and D2) based on the aspect ratio of the enclosures walls are carried out. The geometry is filled by glass balls as an isotropic porous medium. The solution methodology is based on the finite element method and a semi implicit technique is applied for the velocities. The main outcomes disclosed that the alteration of the radiation parameter reduces the melting/solidification processes. Also, using NEPCM's gives a clear improvement in the heat transfer.
Bibliographical noteKAUST Repository Item: Exported on 2022-06-15
Acknowledgements: The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through research groups program under Grant Number (R.G.P2/27/42). For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering