Abstract
The cosorption characteristics of water and toluene vapors in various concentrations of triethylene glycol solution flowing through a packed-bed dehumidifier are investigated. A multicomponent model is constructed using the reported equilibrium relationships of toluene and water vapors in triethylene glycol solutions together with the Krishna-Standart multicomponent mass transfer correlation. The results show that running the packed dehumidifier in a higher liquid-to-gas flow ratio can increase removal efficiencies of both water vapor and toluene vapor from the air stream. Further analysis reveals that increasing the triethylene glycol solution inlet temperatures can lead to a decreasement in the removal efficiency of water vapor when running the packed dehumidifier at a high liquid-to-gas flow ratio. However, there is no significant change in the toluene vapor removal efficiency when the inlet triethylene glycol solution flow rate is increased. This shows that negligible molecular interaction occurs between toluene vapor and water vapor during the absorption process in packed dehumidifier. This enables the use of a liquid desiccant triethylene glycol dehumidifier for indoor air quality control.
| Original language | English |
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| Title of host publication | Proceedings of the 2003 - 4th International Symposium on Heating, Ventilating and Airconditioning |
| Pages | 1021-1036 |
| Number of pages | 16 |
| Publication status | Published - 1 Dec 2003 |
| Externally published | Yes |
| Event | Proceeding of the 2003 4th International Symposium on Heating, Ventilating and Air Conditioning - Beijing, China Duration: 9 Oct 2003 → 11 Oct 2003 |
Conference
| Conference | Proceeding of the 2003 4th International Symposium on Heating, Ventilating and Air Conditioning |
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| Country/Territory | China |
| City | Beijing |
| Period | 9/10/03 → 11/10/03 |
ASJC Scopus subject areas
- General Engineering