Power Flattening Techniques for Radioisotopic Thermoelectric Generators
Abstract
The objective of this program was to investigation of a novel means of reducing the potential ecologic hazards that may be associated with radiosotopic thermoelectric generators (RTG's). A number of short lived isotopes have lower toxicities and are more ecologically acceptable than the Plutonium 238 used at present. In addition, the shorter half lives significantly reduce the time period during which isotope encapsulation must be assured (approximately 10 half lives). The technical approach involves the use of a gas controlled heat pipe to maintain a nearly constant heat input to the thermoelectric converter in spite of the decay profile of a short lived isotopic heat source. Excess thermal power available early in life, is automatically shorted around the thermoelectric module by way of the heat pipe. A development model of a gas controlled heat pipe capable of performing the required task was constructed and tested during this program.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1984
- Accession Number
- ADA146365
Entities
People
- G. Y. Eastman