Contour Heat Pipes

    • Contour Heat Pipes

    Purpose:
    Thermal control of spacecraft equipment.
    Year of release: 1992
    Guaranteed service life (years):
    25 years after CHP filling with working fluid.
    Estimated production / delivery time (months): 6
    Flight qualification of the product: Yes
    Brief history of flight qualification:
    Operated successfully on board of more than 30 Russian and foreign satellites.
    Possibility to adapt the product to customer requirements: Yes
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    Parameter Value
    Transferred heat power from 2 W to 10000 W
    Outer diameter of transport lines from 1 mm to 8 mm
    Length up to 10 m
    Operation temperature range from -170 C to 80 C
    Generated capillary pressure up to 70000 Pa (when Ammonia is used as working fluid)

    Description

    Two-phase (vapor/liquid) hermetic closed evaporating/ condensing thermal transfer system filled with a working fluid (usually by Ammonia or Propylene).
    CHP advantages:
    - CHP design allows to use units for active and passive control
    ... Two-phase (vapor/liquid) hermetic closed evaporating/ condensing thermal transfer system filled with a working fluid (usually by Ammonia or Propylene).
    CHP advantages:
    - CHP design allows to use units for active and passive control of CHP performance;
    - CHP can operate at its arbitrary position in the gravity field;
    Small pipes diameter allows to bend transport lines that simplifies essentialy CHP integration into the spacecraft;
    Condensers of different design (radiators, flow heat exchanges, contact saddles etc.) can be integrated into CHP.
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