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FAQ

Sélection technique et réfrigérants

  • Quels sont les facteurs fouling ne suggèrent Onda pour la sélection des coquilles et de chaleur à tubes échangeurs?

    The fouling factor is important for the selection of an evaporator. The value Onda suggest to input in selection software are:

    For evaporators:
    -    Normal water in closed circuit: 0,000043 m2K/W;
    -    Water in open circuit: 0,000086 m2K/W;
    -    Solutions with glycol <40%: 0,000086 m2K/W;
    -    Solutions with glycol >40%: 0,000172 m2K/W.

    For condensers:
    -    Normal city water: 0,000043 m2K/W;
    -    Treated tower water: 0,000043 m2K/W;
    -    River water: 0,000086 m2K/W;
    -    Solutions with glycol <40%: 0,000086 m2K/W;
    -    Solutions with glycol >40%: 0,000172 m2K/W.

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