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This paper presents a study of condensate retention on a louver-fin-and-tube air cooling coil, which is commonly used in air conditioning systems. Compared to previously related work focusing on the influence of condensate retention on the heat and mass transfer between air and a cooling coil, the present study emphasizes the impacts of operating parameters on condensate retention on a cooling coil. A new method to describe the steady-state condensation has been suggested and a new mathematical model to represent the force balance of retained condensate developed. The mass of condensate retained has been measured experimentally under various operating conditions of a direct expansion air-cooling and dehumidification system. The influences of air dry-bulb temperature, moisture content and Reynolds Number on condensate retention are discussed. The model developed relates the mass of condensate retained to condensing rate, and is successful in predicting the trends of condensate retention under normal operating conditions for air cooling applications.
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Details
- Original title: Condensate retention on a louver-fin-and-tube air-cooling coil.
- Record ID : 2007-0790
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 3
- Publication date: 2007/05
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Indexing
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Themes:
Other air-conditioning equipment;
Heat transfer - Keywords: Finned tube; Louvre; Vapour; Air cooler; Modelling; Expérimentation; Air conditioning; Condensation; Heat exchanger; Water
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