RF Breakdown Prevention, Part 2 Product Overview
Abstract
Refrigeration tests were performed on the Sunpower CryoTel CT cryocooler to provide design inputs prior to a contractor s payload critical design review. The primary performance matrix was obtained at cold tip temperatures of 60 K, 65 K, and 70 K at heat loads of 3.75 W and 4.5 W. Forced convective air cooling was used to maintain the cryocooler heat rejection temperature at 45 Degrees C. The cooler required 129.5 W of electrical input power to the thermo-mechanical unit (TMU) to remove 4.5 W from the cold tip at 65 K and 112 W of input power to remove 3.75 W at 65 K. By lowering the heat rejection temperature to 30 Degrees C, the required TMU power consumption to remove 4.5 W and 65 K was reduced to 120.3 W. Independent voltage and current measurements were taken to verify the inputs to the vendor s controller and showed good agreement with the commanded power levels.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 07, 2015
- Accession Number
- ADA627321
Entities
People
- James Farrell
- Jeffrey P. Tate
- Preston T. Partridge
Organizations
- The Aerospace Corporation