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Strojarstvo : časopis za teoriju i praksu u strojarstvu, Vol. 51 No. 5, 2009.

Preliminary communication

Basic Solar Chimney Flow Improvements

Branko KLARIN orcid id orcid.org/0000-0002-9735-5128 ; Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia
Sandro NIŽETIĆ orcid id orcid.org/0000-0001-6896-4605 ; Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia
Jadran ROJE ; Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia

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Abstract

This paper deals with the numerical analysis procedure and results of flow simulation through solar chimney. Because of relatively low Reynolds numbers, some aerodynamic improvements could be obtained. The paper links input heat energy with geometry or air flow parameters. Basic solar chimney geometry is carried out and analyzed with CFD application in three dimensional domain. The main assumption is to reach the optimal fractional pressure drop across turbines and maximal electric energy production by solar chimney geometry adaptation. Results are numerically tested by known parameters and improvements are applied and tested. Various shapes of internal solar chimney geometry are applied and the best for given input parameters are extracted. Also, some external geometry shape solutions are investigated. Test includes comparison with the known measured air flow results in similar solar chimney (Manzanares, Spain). Results provided validate the assumptions and could be a base for further experimental investigations.

Keywords

Optimal fractional pressure drop; Solar chimney; Three dimensional flow analysis

Hrčak ID:

50567

URI

https://hrcak.srce.hr/50567

Publication date:

30.10.2009.

Article data in other languages: croatian

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