Free convection and second law scrutiny of NEPCM suspension inside a wavy-baffle-equipped cylinder under altered Fourier theory
نویسندگان
چکیده
• Second law scrutiny of NEPCM suspension inside a circular cylinder is inspected. The cold possesses wavy baffle which acts as heater. amplitude hot have potential to be changed. whole system assumed affected by Cattaneochristov heat flux model. governing equations been solved via the finite element method (FEM). Free convection and second nano-encapsulated phase change material (NEPCM) along with entropy production involving significant thermal management aspect subject various industrial applications. Phase (PCM) undergoes solid-liquid mutation at particular fusion temperature, absorbs/releases an appreciable amount energy because latent mutation. Hence, NEPCMs would prospective owing their capability enhance working liquids’ performance, keeping cooling temperature. In order simulatethe free generation entails under CattaneoChristov model(Altered Fourier theory) magnetic field, (FEM) could utilized solve equations. this study, changeable while its undulation number fixed 2. Amplifying Raylegh intensifies streamlines, isotherms, horizontal vertical velocities, total whittles down local Bejan number. Higher field strength responsible for slow movement augments Growth size yields squeezes velocities intensified tilted isotherms.
منابع مشابه
Numerical Study of Natural Convection Heat Transfer in a Horizontal Wavy Absorber Solar Collector Based on the Second Law Analysis
Literature about entropy generation analysis of a wavy enclosure is scare. In this paper. a FORTRAN cod using an explicit finite-volume method was provided for estimating the entropy production due to the natural convection heat transfer in a cosine wavy absorber solar collector. The volumetric entropy generation terms both the heat transfer term and the friction term were straightly calculated...
متن کاملNumerical investigation of natural convection phenomena in uniformly heated trapezoidal Cylinder inside an elliptical Enclosure
A numerical study of the natural convection of the laminar heat transfers in the stationary state was developed in a horizontal ring and compared between a heated trapezoidal internal cylinder and a cold elliptical outer cylinder. This annular space is traversed by a Newtonian and incompressible fluid. The Prandtl number is set to 0.7 (air case) for different Rayleigh numbers. The system of equ...
متن کاملFree Convection and Irreversibility Analysis inside a Circular Porous Enclosure
Abstract: We investigate the nature of heat transfer and entropy generation for natural convection in a two-dimensional circular section enclosure. The enclosure is assumed to fill with porous media. The Darcy momentum equation is used to model the porous media. The full governing differential equations are simplified with the Boussinesq approximation and solved by a finite volume method. Where...
متن کاملLocality inside black holes violates the second law of thermodynamics
We show that the entropy created by Ohmic dissipation inside an accreting charged black hole may exceed the Bekenstein-Hawking entropy by a large factor. Since only the Bekenstein-Hawking entropy is released during evaporation, the black hole appears to destroy entropy. To avoid this startling result, the interior of the black hole must contain a proliferation of complementary causal patches — ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of The Taiwan Institute of Chemical Engineers
سال: 2021
ISSN: ['1876-1070', '1876-1089']
DOI: https://doi.org/10.1016/j.jtice.2021.06.021