Heat Pipes For Thermal Control System of Spacecraft

BASIS TECHNICAL PARAMETERS

Cooling agent - high purified ammonia
Diapason of working temperature,К: 210...370
Length of heat pipe, m: 2,6
Profiles, type: straight and curve (radius of curving
1.0...1.8 m)

Thermal resistance, К/W: 0.01...0.1
Life period: not less 15 years
Length of blocked by non condensed gases zone for last
time life period: not more 50 mm for 230К temperature

Profiles Used for Heat Pipes

Heat Pipes are manufactured from TR 14PD profile (aluminum-magnesia alloy) and from AS-KRA 7.5-R1 profile (aluminum alloy)

TR 14PD profile
36 straight angle channels
Channel width = 0.7mm
Channel depth = 1.0mm

AS-KRA 7.5-R1 profile
Plate width B = 30...120mm

Altitude size H = 14mm
Channel sizes: a=0.6mm,b=0.4mm, h=0.9mm, d1=1.1mm