Realization of a thermal development model of a cryogenic protection system for space applications
Abstract
A thermal model of a cryogenic cooling system for satellite-borne instruments was constructed and tested, in view of application to the cooling of infrared detectors below 10 K. The system consists essentially of a reservoir containing 9 liters of liquid helium at 4.2 K, a cylinder welded to the reservoir containing the experiment (simulated by resistors), and screens. Thermal vacuum tests were carried out. Results show in particular the existence of the Taconis effect: a thermoacoustic vibration effect occurring in the system's tubes, leading to cooling losses.
- Publication:
-
Final Report Societe Nationale Industrielle Aerospatiale
- Pub Date:
- 1977
- Bibcode:
- 1977snia.rept......
- Keywords:
-
- Cooling Systems;
- Cryogenic Equipment;
- Cryogenic Fluid Storage;
- Thermal Protection;
- Infrared Detectors;
- Liquid Helium;
- Manufacturing;
- Satellite-Borne Instruments;
- Sound Waves;
- Space Environment Simulation;
- Thermal Insulation;
- Thermal Vacuum Tests;
- Vibration Effects;
- Fluid Mechanics and Heat Transfer