Dependence of Solar-Thermal Rocket Performance on Concentrator Performance
Abstract
The Phillips Laboratory (OLAC) at Edwards Air Force Base is actively working to forward research and development in Solar-Thermal Propulsion. The concentrator support structure trade studies reviewed were the result of PRDA Program Research and Development Announcement) contracts, for example. Recent funding is through SBIR (Small Business Innovative Research), however, as money for larger contracts becomes rare. Topics such as space concentrator development, thruster development, pointing and accuracy, etc. are of interest to the Phillips Laboratory Solar Products group. The purpose of this paper is to give a feeling for the concentrator performance level needed to make this propulsion concept useful. This paper introduces some basic propulsion concepts. This basic prerequisite is necessary to show how concentrator behavior affects the performance of a solar rocket. Some concentrator basics are also included. Upper-limits are defined for performance of the solar rocket and compared with conventional rocket designs. The most popular configuration for a solar powered rocket is described and discussed. The geometry and performance of a specific type of off- axis paraboloid is discussed. Finally, recent concentrator structure development is reviewed briefly.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1995
- Accession Number
- ADA412264
Entities
People
- Kristi K. Laug
- Michael R. Holmes