Condensation de l'acide sulfurique dans un conduit d'evacuation des gaz de combustion
1997
Abstract A method for computing the condensation of water vapour and sulphuric acid in a removal gas conduct is proposed. It utilizes a theoretical approach to determine the condensate production during the phase change from the numerically computed thermal and dynamic properties of the steam in the conduct. The temperature and velocity distributions are given from a k — e model in one-phase incompressible flow, taking into account the initial temperature and flow rate in the conduct. The quality of the model is tested on a full-scale experimentation pilot equipped with thermocouples and collectors of liquid condensate. The deposit production is obtained for different conditions of temperature and concentration, and the model proves to be satisfactory in domestic boiler conditions.
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