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- W4383813049 endingPage "108285" @default.
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- W4383813049 abstract "The present numerical study analyzes the melting behavior of three different phase change materials namely Lauric acid, paraffin wax and n-Octadecane placed in trapezoidal-shaped cavities with inner heated tubes. The present investigation concerns the influence of angular variation of trapezoidal containers and the position of the tubes on the melting rate and heat transfer process of the phase change materials. The finite element method has been employed to solve the governing differential equation along with boundary conditions. The PARADISO package solves the algebraic systems of equations deriving from spatial and temporal discretization. It successfully solves unsymmetrical sparse matrixes using an LU-based decomposition strategy. The average Nusselt number in the inner tube is determined to confirm whether the melting process is convection-dominant or conduction dominant. Three inner heated tubes in the container are arranged with five different orientations: the inline central array (CASE-A, CASE-F), the inline bottommost array (CASE-B), the upward triangle with different spacing of tubes (CASE-C, CASE-D, CASE-E). As the CASE-F takes more time to melt the phase change material, it can be compared with other cases to see how much melting time has been reduced. Utilizing CASE-A, CASE-B, CASE-C, CASE-D, and CASE-E enhanced the melting time more than CASE-F by 76 %, 72.14 %, 74.6 %, 74.9 %, and 75.1 % respectively. The results show that the shape of the cavity and proper positioning of the inner tube can influence the melting phenomenon and therefore improves the charging rate appreciably. Moreover, all the phase change materials show the same optimum configuration (Case-A)." @default.
- W4383813049 created "2023-07-11" @default.
- W4383813049 creator A5012892329 @default.
- W4383813049 creator A5018829998 @default.
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- W4383813049 date "2023-11-01" @default.
- W4383813049 modified "2023-09-27" @default.
- W4383813049 title "Numerical investigation of heat transfer and melting process of phase change material in trapezoidal cavities with different shapes and different heated tube positions" @default.
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- W4383813049 doi "https://doi.org/10.1016/j.est.2023.108285" @default.
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