A holographic interferometric method to study combined heat and mass transfer in film sorption
Abstract
Sorption by a liquid desiccant is a key process in open-cycle, liquid desiccant cooling systems. In order to study the absorption rates in a liquid desiccant, a fiber-optic, double-wavelength holographic interferometric method was developed and used to measure the combined heat and mass transfer processes that occurred during a regeneration process. In the experiment, the heat and mass transfer processes that occur at the interface between a dry air stream and either a liquid desiccant or a film of water are investigated. The temperature and concentration distribution were calculated and the results were used to determine the Lewis number Le and the local heat and mass transfer coefficients.
- Publication:
-
International Communications in Heat and Mass Transfer
- Pub Date:
- August 1992
- DOI:
- 10.1016/0735-1933(92)90008-6
- Bibcode:
- 1992ICHMT..19..531Z
- Keywords:
-
- Cooling Systems;
- Fiber Optics;
- Heat Transfer;
- Holographic Interferometry;
- Mass Transfer;
- Sorption;
- Desiccants;
- Fluid Films;
- Heat Transfer Coefficients;
- Mixing Layers (Fluids);
- Test Chambers;
- Instrumentation and Photography