Abstract
The aim of the present study is to analyze numerically the effect of an internal heat exchanger (IHX) in a liquid-desiccant based dehumidification system operating near freezing conditions that are typical of a refrigerated warehouse. The study is based on previous work done by the authors that showed reduced ice formation on the surface of a cooling coil by dehumidifying the air using liquid desiccants. The results of the present study show that IHX effectiveness has a direct impact on the inlet temperature of the liquid desiccant leaving the absorber. High IHX effectiveness results in high absorber effectiveness. However, IHX effectiveness less than 60% leads to a desorption process where the liquid desiccant concentration increases, augmenting the humidity ratio of the air going through the mass exchanger.
| Original language | English |
|---|---|
| Pages (from-to) | 2304-2310 |
| Number of pages | 7 |
| Journal | International Journal of Thermal Sciences |
| Volume | 50 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2011 |
| Externally published | Yes |
Bibliographical note
Funding Information:This work was supported by the California Energy Commission and the California Institute for Energy and Environment contract # MR-07-04.
Keywords
- Internal heat exchangers
- Liquid desiccants
- Refrigerated warehouse