Drop deposition and heat transfer in two-component dispersed flow
Theoretical and experimental studies were carried out to further investigate the turbulent deposition of particles from two-phase droplet flow onto the smooth wall of a vertical tube. The work of Ganic and Mastanaiah (1981) for the Stokes regime was extended by this study to include the Oseen regime (Re/sub p/ less than or equal to 5). The proposed theory satisfactorily describes the existing data, as well as the new data taken for air-water droplet flow passing through a 12.7 mm diameter stainless steel tube at Re = 27000, 36000, 43000 and 55000. Theoretical and experimental studies were carried out to study the heat transfer in two-component, two-phase flow, using an electrically heated 12.95 mm I.D. vertical stainless steel tube of 889 mm. The theoretical model takes into consideration the non-evaporating fraction of the droplets which are deposited on the wall, and all the possibilities of having a liquid film on the wall, especially when the wall temperature is less than the saturation temperature, are considered. A comparison between the proposed model and the available experimental data was done. Finally, an empirical correlation was developed to predict the heat transfer coefficient in two-phase flow, knowing the initial conditions. A similar equation was developed to predict the local wall temperature.
- Research Organization:
- Illinois Univ., Chicago (USA)
- OSTI ID:
- 6969351
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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