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Indirect dry cooling systems

An indirect dry cooling system is characterized by the use of a condenser and air-cooled heat exchangers.

The cooling system consists of the following main components :

  • condenser (surface or spray type),
  • cooling water circulating pumps and recovery turbines, if applicable,
  • heat exchanger deltas including louvers,
  • natural draft cooling tower,
  • piping and valves,
  • water storage tanks and transfer pumps,
  • electrical equipment,
  • instrumentation and control,
  • accessories such as cleaning system, nitrogen blanketing system, …

The warm water from the condenser is delivered to the natural draft cooling tower by the cooling water circulating pumps and an underground piping network.  After the cooling in the heat exchangers, the cold water returns to the condenser.


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