Concentration of off-axis radiation by solar concentrators for space power

Abstract

Kent S . J e f f e r i e s N a t i o n a l Aeronautics and Space A d m i n i s t r a t i o

Solar Dynamic Modules for Space Station Freedom: The Relationship Between Fine-Pointing Control and Thermal Loading of the Aperture Plate: Part I—Analysis

“…The data from [10] were used in two ways: (1) the time-dependent flux value at the location of interest is directly used (peak flux assumption) and (2) the area-integrated power impinging on the aperture plate is divided by the illuminated area to generate a time-dependent average flux input value for the location of interest (average flux assumption). The peak flux assumption implicitly assumes lateral energy transfer cannot occur within aperture plate layers and thus, temperature predictions will be conservative.…”

“…-Beta fine-pointing gimbal control torques for case II. -Starboard concentrator angular motion for case III.Figure 11.-Beta and fine-pointing gimbal control torques for case -Aperture plate incident flux versus pointing error[10].…”