Entropy, Volume (20), No (11), Year (2018-11) , Pages (851-873)

Title : ( Modelling Study on Internal Energy Loss Due to Entropy Generation for Non-Darcy Poiseuille Flow of Silver-Water Nanofluid: An Application of Purification )

Authors: Nasir Shehzad , Ahmed Zeeshan , Rahmat Ellahi , Saman Rashidi ,

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Abstract

In this paper, an analytical study of internal energy losses for the non-Darcy Poiseuille flow of silver-water nanofluid due to entropy generation in porous media is investigated. Spherical-shaped silver (Ag) nanosize particles with volume fraction 0.3%, 0.6%, and 0.9% are utilized. Four illustrative models are considered: (i) heat transfer irreversibility (HTI), (ii) fluid friction irreversibility (FFI), (iii) Joule dissipation irreversibility (JDI), and (iv) non-Darcy porous media irreversibility (NDI). The governing equations of continuity, momentum, energy, and entropy generation are simplified by taking long wavelength approximations on the channel walls. The results represent highly nonlinear coupled ordinary differential equations that are solved analytically with the help of the homotopy analysis method. It is shown that for minimum and maximum averaged entropy generation, 0.3% by vol and 0.9% by vol of nanoparticles, respectively, are observed. Also, a rise in entropy is evident due to an increase in pressure gradient. The current analysis provides an adequate theoretical estimate for low-cost purification of drinking water by silver nanoparticles in an industrial process

Keywords

, energy loss; silver, water nanofluid; magnetic field; porous media; non, Darcy Poiseuille flow
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@article{paperid:1074819,
author = {Nasir Shehzad and Ahmed Zeeshan and Rahmat Ellahi and Rashidi, Saman},
title = {Modelling Study on Internal Energy Loss Due to Entropy Generation for Non-Darcy Poiseuille Flow of Silver-Water Nanofluid: An Application of Purification},
journal = {Entropy},
year = {2018},
volume = {20},
number = {11},
month = {November},
issn = {1099-4300},
pages = {851--873},
numpages = {22},
keywords = {energy loss; silver-water nanofluid; magnetic field; porous media; non-Darcy Poiseuille flow},
}

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%0 Journal Article
%T Modelling Study on Internal Energy Loss Due to Entropy Generation for Non-Darcy Poiseuille Flow of Silver-Water Nanofluid: An Application of Purification
%A Nasir Shehzad
%A Ahmed Zeeshan
%A Rahmat Ellahi
%A Rashidi, Saman
%J Entropy
%@ 1099-4300
%D 2018

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