تقرير
Historical “Duration of Use' Power Figure Research and Update
| العنوان: | Historical “Duration of Use' Power Figure Research and Update |
|---|---|
| المؤلفون: | Marc R Hayhurst, Thomas J Sutliff |
| المصدر: | Aerospace Report. |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Spacecraft Propulsion And Power |
| الوصف: | Compared to actual demonstrated mission usage, boundaries in recent historical figures were much higher than actual required levels, especially for primary batteries, fuel cells, and dynamic RPS. Boundaries for solar and static RPS architectures remained mostly unchanged. Beyond looking only at demonstrated mission performance, current funded programs that would change the boundaries further were also considered. Considering these programs, boundaries for primary batteries, solar, and dynamic RPS do increase modestly. The investigation of the power level versus distance (AU) revealed the most practical locations of use for each architecture. Fuel cell use has been concentrated around earth’s orbit as they provide high power levels for shorter duration. Solar has been demonstrated from very close to the Sun out to Jupiter as solar power generation levels begin to dissipate. Primary batteries have been demonstrated in numerous probes from Venus out to Saturn. Finally, static RPS systems have traveled from Venus out past 150 AU outside the solar system. Considering current funded programs, power levels for solar do increase at Earth and Jupiter. The investigation of the historical power level change over time revealed that early assumed chemical power levels were quite high compared to current projections. Solar power sources appear to have matured over time and seem to have increased as chemical decreased. Static RPS systems have remained relatively stable since their introduction. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| URL الوصول: | https://ntrs.nasa.gov/citations/20220008287 |
| ملاحظات: | 80GSFC19D0011 138494.01.99.01 |
| رقم الأكسشن: | edsnas.20220008287 |
| قاعدة البيانات: | NASA Technical Reports |
| الوصف غير متاح. |