Thermal Control Subsystem Passive Techniques Paints – White and Black Multi-layered Insulation 15 layers Betacloth, aluminized Kapton Dacron Netting, Kapton.

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Presentation transcript:

Thermal Control Subsystem Passive Techniques Paints – White and Black Multi-layered Insulation 15 layers Betacloth, aluminized Kapton Dacron Netting, Kapton laminate Thermal Switches Diaphragm Thin Plate Switch Between heat generators and sinks High conductance cold (mounting) plate Active Systems Solid-State controlled heaters Electrical resistance element Tayco Controller Variable Radioisotope Heater Units (VRHUs) 50 – to provide approximately 50 W Located inside 10 VRUH containers Variable Conductance Heat Pipes Aluminum with ammonia working fluid 1.27 cm diameter Axial groove composite wick Radiator with embedded heat pipes

Thermal Backup Slide 1

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