Two-dimensional CFD modeling of the heat and mass transfer process during sewage sludge drying in a solar dryer

• Autorzy: Krawczyk P. , Badyda K.
• Języki publikacji: EN

Abstrakty

EN

The paper presents key assumptions of the mathematical model which describes heat and mass transfer phenomena in a solar sewage drying process, as well as techniques used for solving this model with the Fluent computational fluid dynamics (CFD) software. Special attention was paid to implementation of boundary conditions on the sludge surface, which is a physical boundary between the gaseous phase - air, and solid phase - dried matter. Those conditions allow to model heat and mass transfer between the media during first and second drying stages. Selection of the computational geometry is also discussed - it is a fragment of the entire drying facility. Selected modelling results are presented in the final part of the paper.

Słowa kluczowe

EN

CFD; heat and mass transfer; sewage sludge drying

PL

suszenie osadów ściekowych; wymiana ciepła i masy

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2011
• Tom: Vol. 32, no. 4
• Strony: 3--16
• Opis fizyczny: Bibliogr. 14 poz.,

Twórcy

autor

Krawczyk P.

autor

Badyda K.

• Division of Power Machines and Devices, Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 25. 00-665 Warsaw, Poland

Bibliografia

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• [14] KRAWCZYK P., SZCZYGIEŁ J., SZWARC W.: Solar drying of sewage sludge, the project and initial operating experience. In: Proc. Conf. “Integrated intelligent systems of utilisation of renevable energy”, Częstochowa 2005 (in Polish). Available at http://www.is.pcz.czest.pl/hosting/kie/konf.html