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Theoretical considerations on natural ventilation by thermal buoyancy.

Author(s) : ANDERSEN K. T.

Summary

The natural ventilation by thermal buoyancy in a room with small openings is determined by the equations for mass balance, energy conservation, and vertical momentum for a control volume representing the room in question and by the modified Bernouilli equation used on the inlet and outlet in order to connect indoor and outdoor conditions. Auxiliary equations are set up in order to get the solution based on density difference, temperature difference, and net heat input, respectively. The validity of the solution is discussed in relation to temperature stratification, position of neutral pressure plane, and orientation of the openings.

Details

  • Original title: Theoretical considerations on natural ventilation by thermal buoyancy.
  • Record ID : 1997-1045
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1995/06/24
  • Document available for consultation in the library of the IIR headquarters only.

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