A rotary solar furnace is conceptually introduced. In contrast to a conventional solar furnace, where the concentrator is fixed, in a rotary solar furnace both the concentrator and the heliostat rotate in concentric circular path around the concentrator's focus such that at each instant of time they face each other. The angular velocity of this motion equals the angular velocity of the Sun's projection line onto the Earth. In this dynamic solar furnace, the Sun appears always right above the heliostat. Consequently, the heliostat needs only a single-axis elevation tracking to redirect the sunlight along the concentrator's optical axis. This implies that the amount of harvested energy is maximal while the focus remains fixed in space. The daily concentrated radiation energy is analytically computed for each day of the year given the geographical latitude. It is shown the daily energy increase percentage crucially depends on the day of year and geographical latitude. This increase percentage reaches it maximum value in the summer solstice, which is slightly above 140 percent, for instance, in Tehran, Iran.
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December 2024
Research Article|
November 19 2024
Rotating solar furnace
M. Ebrahim Foulaadvand
;
M. Ebrahim Foulaadvand
a)
(Conceptualization, Formal analysis, Investigation, Methodology, Resources, Writing – original draft, Writing – review & editing)
1
Department of Physics, Faculty of Science, University of Zanjan
, PC 45371-38791 Zanjan, Iran
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
Amir Aghamohammadi
Amir Aghamohammadi
b)
(Conceptualization, Formal analysis, Investigation, Methodology, Resources, Writing – original draft, Writing – review & editing)
2
Department of Fundamental Physics, Faculty of Physics, Alzahra University, Tehran
, Iran
Search for other works by this author on:
a)Author to whom correspondence should be addressed: [email protected]
b)
Electronic mail: [email protected]
J. Renewable Sustainable Energy 16, 063702 (2024)
Article history
Received:
August 14 2024
Accepted:
October 29 2024
Citation
M. Ebrahim Foulaadvand, Amir Aghamohammadi; Rotating solar furnace. J. Renewable Sustainable Energy 1 December 2024; 16 (6): 063702. https://doi.org/10.1063/5.0233384
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