Naslov
Basic solar chimney flow improvements

Autori
Klarin, Branko ; Nižetić, Sandro ; Roje, Jadran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Interklima 2009 / - Zagreb : Fakultet strojarstva i brodogradnje Sveučilišta u Zagrebu, 2009

Skup
20th International symposium and exhibition of heating, refrigerating and air conditioning

Mjesto i datum
Zagreb, Hrvatska, 23.04.2009. - 24.04.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
solar chimney; three dimensional flow analysis; optimal fractional pressure drop

Sažetak
This paper deals with the numerical analysis procedure and results of air flow simulation through solar chimney. Because of low Reynolds numbers, some aerodynamic improvements could be obtained. 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 domains. 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 in two stages. In first basic flow is tested for comparison and procedure calibration. In the second 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 to 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.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne tehničke znanosti

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