A concrete heat accumulator for use in solar heating systems - a mathematical model and experimental verification

• Autorzy: Sacharczuk J. , Taler D.
• Języki publikacji: EN

Abstrakty

EN

The article presents a numerical model of the concrete heat accumulator for solar heating systems. Model uses control volume finite element method with an explicit solution method for time integration. The use of an explicit method is an essential advantage in the simulation of time-dependent changes in temperature of the air at the accumulator inlet. The study compares the results of numerical model calculations of the accumulator heating with experimental measurements and with computational fluid dynamics modeling. The comparison shows a good correlation between the results of calculation using the model and the results of measurements.

Słowa kluczowe

EN

heat storage; solar heating system; control volume finite element method

PL

akumulowanie ciepła; kolektor słoneczny

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2014
• Tom: Vol. 35, no. 3
• Strony: 281--295
• Opis fizyczny: Bibliogr. 8 poz., il.

Twórcy

autor

Sacharczuk J.

• Cracow University of Technology, Faculty of Envronmental Engineering, Warszawska 24, 31-155 Kraków, Poland

autor

Taler D.

• Cracow University of Technology, Faculty of Envronmental Engineering, Warszawska 24, 31-155 Kraków, Poland

Bibliografia

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• [2] DOMAŃSKI R.: Thermal Energy Storing. PWN, Warsaw 1990 (in Polish).
• [3] TALER D., CISEK P.: Modeling of cooling of ceramic heat accumulator. Arch. Thermodyn. 34(2013), 4, 161-173.
• [4] SACHARCZUK J., TALER D.: Using concrete or ceramic units to store heat obtained in a solar installation. Rynek Energii 4(2013), 107, 37-42 (in Polish).
• [5] TALER J., DUDA P.: Solving Direct and Inverse Heat Conduction Problems. WNT, Warsaw 2003 (in Polish).
• [6] COURANT R., FRIEDRICHS K., LEWY H.: On the partial difference equations of mathematical physics. IBM J. Res. Development 2(1967), 11, 215-234.
• [7] INCROPERA P.P., DEWITT D.P.: Fundamentals of Heat and Mass Transfer, 3rd Ed. Wiley, New York 1990.
• [8] ANSYS-Fluent User's Guide. ANSYS, 2011.