Abstract
A model of combined mass and heat transfer during nonisothermal gas absorption from a slug rising in a channel filled with liquid is suggested. The expressions for coefficients of heat and mass transfer from a single slug are derived in the approximation of the thin concentration and heat boundary layers in a liquid phase. Under the assumptions of a perfect mixing of the dissolved gas in liquid plugs and uniform temperature distribution in liquid plugs, recurrent relations for the dissolved gas concentration and temperature in the n-th liquid plug and mass and heat fluxes from the n-th gas slug are derived. The total mass and heat fluxes in a gas-liquid slug flow are determined. In the limiting case of absorption without heat release the derived formulas recover the expressions for isothermal absorption in a gas-liquid slug flow.
| Original language | English |
|---|---|
| Pages (from-to) | 285-294 |
| Number of pages | 10 |
| Journal | International Communications in Heat and Mass Transfer |
| Volume | 22 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 Jan 1995 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- General Chemical Engineering
- Condensed Matter Physics