Abstract
A numerical model of combined heat and mass transfer in the two-phase flow occurring during the absorption of a water vapor into a falling film of LiBr-H2O is presented. A thin liquid film flows downward over an isothermal wall of a vertical channel while water vapor is pumped between the liquid free surface and the other adiabatic wall of the channel. Fluid properties are considered variables. It was found that the absorption rate increases strongly by increasing the absorber water vapor pressure, the inlet solution concentration, or by lowering the isothermal wall temperature. The inlet solution temperature affects the entrance region only. The numerical results are in agreement with the available experimental data.
| Original language | English |
|---|---|
| Pages (from-to) | 287-295 |
| Number of pages | 9 |
| Journal | International Journal of Engineering Research and Technology |
| Volume | 12 |
| Issue number | 3 |
| State | Published - 2019 |
Keywords
- Absorption
- Aqueous lithium bromide
- Thin film flow