Two-temperature model of heat and mass exchange at the bubbles formation on orifices of gas distribution grates of bubbling devices
M.I. Shilyev, A.V. Tolstykh , A.N. Derenok, and E.M. Khromova
Tomsk State University of Architecture and Civil Engineering, Russia
Pages: 121–130
Abstract
A two-temperature physical and mathematical model is developed for the process of heat and mass exchange between water and humid air at the stage of bubbles formation on the orifices of gas distribution grates of bubbling devices. The results of a numerical realization of the model have shown an insignificant variation of fluid temperature during the time from the bubble formation until its separation. It is also found that in most cases the fluid temperature in the bubbly layer (the temperature of gas-liquid layer) differs from the cooling liquid temperature. The two-temperature model enables the determination of cooling liquid temperature in the bubbly layer and then its importance at the computations conducted within the framework of the one-temperature model.
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