Dish Stirling cavity/receiver: thermal model and design optimization

Monné, C.; Gil, R.; Muñoz, M.; Moreno, F.

dc.contributor.author	Monné, C.
dc.contributor.author	Gil, R.
dc.contributor.author	Muñoz, M.
dc.contributor.author	Moreno, F.
dc.date.accessioned	2015-04-24T07:01:26Z
dc.date.available	2015-04-24T07:01:26Z
dc.date.issued	2014
dc.description.abstract	Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.	en_ZA
dc.description.abstract	This paper presents a thermal model for a dish Stirling cavity. Finite differences method has been applied to develop this theoretical model that enables the cavity efficiency optimization quantifying conduction, convection and radiation heat exchange. View factors of all surfaces involved have been calculated accurately to resolve the radiosity method. The model has been implemented in a tool that enables to vary receiver dimensions and materials in order to determine the optimal cavity design. Using this developed tool, there have been found some results that lead to an optimal cavity; regarding material properties, receiver absorptivity presents the biggest influence in cavity performance; and regarding geometry parameters, aperture ratio presents the biggest influence and aperture height shows an optimal value different from one to another aperture ratio.	en_ZA
dc.description.librarian	cf2015	en_ZA
dc.format.medium	PDF	en_ZA
dc.identifier.citation	Monné, C, Gil, R, Muñoz, M, Moreno, F 2014, 'Dish Stirling cavity/receiver: thermal model and design optimization', Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.	en_ZA
dc.identifier.isbn	97817759206873
dc.identifier.uri	http://hdl.handle.net/2263/44710
dc.publisher	International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics	en_ZA
dc.rights	© 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.	en_ZA
dc.subject	Dish Stirling cavity	en_ZA
dc.subject	Efficiency optimization	en_ZA
dc.subject	Heat exchanger	en_ZA
dc.subject	Radiosity method	en_ZA
dc.subject	Theoretical thermal model	en_ZA
dc.subject	Cavity optimization	en_ZA
dc.title	Dish Stirling cavity/receiver: thermal model and design optimization	en_ZA
dc.type	Presentation	en_ZA