Numerical methodology for analyzing the performance of a solar updraft tower in various environmental conditions

This paper investigates a simplified and fast numerical model of a solar updraft tower. The model applies a novel approach to the calculation of heat transfer from the outside environment to a collector in the tower. Complex calculations of heat transfer are replaced by a properly defined heat flux...

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Bibliographic Details
Published inJournal of power technologies Vol. 100; no. 2; p. 144
Main Authors Brenk, Arkadiusz Patryk, Malecha, Ziemowit Miłosz, Tomków, Łukasz Tadeusz
Format Journal Article
LanguageEnglish
Published Warsaw Warsaw University of Technology, Institute of Heat Engineering 01.03.2020
Subjects
Boundary conditions
Environmental conditions
Flow velocity
Heat flux
Heat transfer
Investigations
Low temperature physics
Mathematical models
Numerical analysis
Numerical models
Open source software
Radiation
Solar radiation
Time of use
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Summary:This paper investigates a simplified and fast numerical model of a solar updraft tower. The model applies a novel approach to the calculation of heat transfer from the outside environment to a collector in the tower. Complex calculations of heat transfer are replaced by a properly defined heat flux boundary condition - the value of which depends on the time of day and meteorological conditions. The model was validated by experimental results from a pilot plant in Manzanares, Spain. Calculations were performed in order to investigate the effects of the chimney's height and the density of the solar radiation. Both of these dependencies were found to be logarithmic. The requirements for a 250~kW plant in various locations with different meteorological conditions were analyzed.
ISSN:2083-4187
2083-4195