Experimental and Numerical Analysis of a PCM-Supported ...
Experimental and Numerical Analysis of a PCM-Supported ...
Experimental and Numerical Analysis of a PCM-Supported ...
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The major objective <strong>of</strong> this study is to examine the innovative approach for locally<br />
creating MEHH <strong>and</strong> MECC <strong>and</strong> to determine the technical <strong>and</strong> economic feasibility<br />
<strong>of</strong> applying conductive components in HDH cycle <strong>and</strong> <strong>PCM</strong> storage in solar<br />
desalination plants under both steady state <strong>and</strong> transient operation conditions.<br />
The study follows two main parallel lines through conducting comprehensive<br />
experimental analysis <strong>and</strong> numerical investigations on the <strong>PCM</strong>-supported HDH<br />
system. The main goals <strong>and</strong> scope <strong>of</strong> work to achieve the objectives <strong>of</strong> the study is<br />
as follows:<br />
<br />
<br />
A mixed micro-macro balance transient simulation model will be established<br />
<strong>and</strong> validated against experimental measurements using COMSOL<br />
Multiphysics <strong>and</strong> MATLAB for solving fluid flow <strong>and</strong> heat <strong>and</strong> mass transfer<br />
phenomena in one spatial dimension for different components in such a loop.<br />
The model is desired to be fairly general <strong>and</strong> simple, yet sufficiently accurate<br />
to be applied as a design <strong>and</strong> optimization tool for HDH plants integrated with<br />
different types <strong>of</strong> thermal storage systems.<br />
The thermal behavior <strong>of</strong> the new evaporator <strong>and</strong> condenser technology in the<br />
closed air loop distillation unit incorporating conductive packing under steady<br />
state conditions shall be discussed <strong>and</strong> analyzed both experimentally <strong>and</strong><br />
numerically. Influence <strong>of</strong> using <strong>PCM</strong> <strong>and</strong> Non-<strong>PCM</strong> packing c<strong>and</strong>idates on the<br />
plant performance has to be compiled <strong>and</strong> an optimal solution has to be<br />
integrated into the process.<br />
Effect <strong>of</strong> various influencing independent parameters on individual<br />
components <strong>and</strong> HDH plant performance <strong>and</strong> productivity will be investigated.<br />
<br />
<br />
The dynamic performance <strong>of</strong> the humid air distillation unit integrated with the<br />
<strong>PCM</strong>-thermal storage <strong>and</strong> solar flat plate collector will be discussed <strong>and</strong><br />
analyzed. Comparative performance <strong>of</strong> HDH system is focused <strong>and</strong> clearly<br />
documented using <strong>PCM</strong> <strong>and</strong> water as a thermal storage media in the external<br />
thermal storage over a wide range <strong>of</strong> operation conditions. The overall<br />
analysis will be performed under real varying weather conditions over one<br />
year for a selected geographical location in Egypt. Special attention shall be<br />
paid to the heat recovery mechanisms <strong>and</strong> optimum coupling <strong>of</strong> the external<br />
thermal storage with the HDH cycle.<br />
Finally the numerical simulation model will be used to optimize the design<br />
characteristics <strong>of</strong> a small-scale HDH module with a production capacity <strong>of</strong> 1<br />
m 3 /day.<br />
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