Next Article in Journal
Impacts of the CAP 2014–2020 on the Agroenergy Sector in Tuscany, Italy
Previous Article in Journal
Modeling the Distribution of Solar Radiation on a Two-Axis Tracking Plane for Photovoltaic Conversion
Open AccessArticle

Thermal Model of a Dish Stirling Cavity-Receiver

Mechanical Engineering Department, Engineering and Architecture School, University of Zaragoza, Maria de Luna s/n, Betancourt Building, 50018 Zaragoza, Spain
Author to whom correspondence should be addressed.
Academic Editor: Enrico Sciubba
Energies 2015, 8(2), 1042-1057;
Received: 8 September 2014 / Revised: 4 January 2015 / Accepted: 26 January 2015 / Published: 30 January 2015
PDF [1592 KB, uploaded 17 March 2015]


This paper presents a thermal model for a dish Stirling cavity based on the finite differences method. This model is a theoretical tool to optimize the cavity in terms of thermal efficiency. One of the main outcomes of this work is the evaluation of radiative exchange using the radiosity method; for that purpose, the view factors of all surfaces involved have been accurately calculated. Moreover, this model enables the variation of the cavity and receiver dimensions and the materials to determine the optimal cavity design. The tool has been used to study the cavity optimization regarding geometry parameters and material properties. Receiver absorptivity has been identified as the most influential property of the materials. The optimal aperture height depends on the minimum focal space. View Full-Text
Keywords: dish Stirling system; solar cavity-receiver; thermal model; finite difference method; radiosity method; view factors dish Stirling system; solar cavity-receiver; thermal model; finite difference method; radiosity method; view factors

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Gil, R.; Monné, C.; Bernal, N.; Muñoz, M.; Moreno, F. Thermal Model of a Dish Stirling Cavity-Receiver. Energies 2015, 8, 1042-1057.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top