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The paper analyzes the performance of a heliostat field to maximize annual average thermal power output per unit of mirror area, finding that larger heliostat sizes and higher mounting heights increase efficiency and output.

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Abstract

The many advantages of solar photovoltaic technology make it bound to be commercially competitive in the coming years, and its development is strategically important. The parameters of the heliostat field, including the positional coordinates of the absorber tower, the size and mounting height of the heliostat mirrors, as well as the number and position of the heliostat mirrors, are designed according to the requirement of the rated annual average thermal power output of 60 MW so that the heliostat field will have the largest possible annual average thermal power output per unit of mirror area under the condition of reaching the rated power. Larger sizes and higher mounting heights of heliostats help to capture more solar energy and thus increase the annual average output thermal power per mirror area. The efficiency and output thermal power of heliostats of different sizes and mounting heights are evaluated by simulating the numerical calculation method and the best combination is found.

Key findings

  • Larger heliostat sizes increase annual average output thermal power per mirror area.
  • Higher mounting heights of heliostats help capture more solar energy, increasing efficiency.
  • The best combination of heliostat size and mounting height is found through numerical calculation simulation.

Keywords

HeliostatField (mathematics)ThermalPower (physics)Aerospace engineering

Identifiers

DOI
10.54097/dqt3vh74
Journal
Academic Journal of Science and Technology
Year
2024