Thermal analysis of a multi-tubular cavity thermochemical solar reactor.

Autor: Romero-Paredes, Hernando, Santamaria-Padilla, Adriana, Arancibia-Bulnes, Camilo, Vidales, Heidi Villafán
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Zdroj: AIP Conference Proceedings; 2023, Vol. 2815 Issue 1, p1-8, 8p
Abstrakt: The main objective of this work is the thermal characterization of a multi-tubular cavity solar reactor (M&M) under concentrated solar radiation. This reactor was conceived to perform thermochemical reactions to produce clean fuels as the hydrogen and synthesis gas and other thermochemical reaction to store thermal energy. The characterization was performed in the solar furnace of the Renewable Energy Institute of the UNAM (HoSIER); There have been various proposals for tubular solar reactors, but the effects of the geometry of the distribution of the tubes within the cavity on their thermal behavior, and on thermal inertia with changes in solar irradiance have not been experimentally studied. The characterization was performed as a function of the arrays of the tubes inside the cavity. It was studied the temperature homogeneity between tubes, the temperature differences between tubes and the thermal inertia. The results show that the proposed arrays have in general good thermal stability and can easily respond to sudden changes in solar irradiance. Arrays 3 and 4 were the minimum temperature difference reached between the tubes was 72°C, when the central tube reaches 1200°C, equivalent to 6% difference. Arrays 3 and 4 are the better performance than the other ones. These arrangements will have to be evaluated in greater detail using a thermal load within the tubes to determine their effects and simulate these behaviors. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index