Cascade solar evacuated tube collector (ETC)/Vapor compression air conditioning cycle has been modeled. The upper cycle is the solar ETC adsorption (SAPO34/water) and the bottom cycle is the vapor compression air conditioning cycle (VCAC R410a). Solar ETC has been used for the upper cycle. However, photovoltaic with battery bank has been used for the bottoming cycle. The upper cycle contains the following:
1-Evaporator (water).
2-Bed reactor tank (SilicaGel/water).
3-Condenser (water vapor).
5-Expansion valve.
The bottom cycle contains:
1-Application load, TR.
2-Evaporator unit.
3-Compressor.
4-Air cooled condenser unit.
5-Expansion valve.
6-Photovoltaic system.
7-Battery bank.
The model is a performance model that can measure the effect of operating conditions on the system efficiency or the COP. In this Evacuated tube Solar Collector (ETC) performance model, the user will be able to discover the effect of the operating conditions (solar radiation, ambient temperature, feed flow rate, inlet temperature, etc...) on the performance of the ETC. The system's total area and design aspects will be kept known for that purpose. The following parameters can be calculated:
1-Efficiency.
2-Overall losses.
3-Pressure losses.
4-Outlet temperature.
5-Exergy analysis.
 
**MatLab-SimuLink should be used to run the model.
Copyright © 2007 by Mohamed A. Sharaf Eldean Ayoub
All rights reserved. 
No part of this work may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the publisher (Mohamed A. Sharaf Eldean Ayoub). For permission requests, write to the publisher, addressed “Attention: Permissions Coordinator,” at the address below.
 
REDS Software Library
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Kuala Lumpur Malaysia
mohamedsheraf@redslibrary.com
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