NSTAR Technology Validation
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NSTAR ion propulsion SEP ion engine electric propu↗
Engineering topics
Benson, G.
Publications and source records attributed to Benson, G..
Progress on the development of a 3- to 5-year lifetime Stirling cycle refrigerator for space
A new approach to the development of a 3- to 5-year lifetime Stirling cycle refrigerator for space is described. The reciprocating components would be driven directly by linear motors. There would be no contact between the moving components and the machine housing or motor during operation. The noncontact operation can be achieved either by magnetic or gas bearings and clearance seals. Consequently, two major contractual efforts are underway, one to develop the magnetic-bearing cooler and the other to develop the gas-bearing machine. The coolers are required to have a 5-W capability at 65 K and to be dynamically balanced. The results of the major contractor phase 1 design definition studies and component testing are discussed. Both the gas-bearing and magnetic-bearing coolers show promise for achieving the 3- to 5-year lifetime goal.
Sherman, A.↗