Volltext-Downloads (blau) und Frontdoor-Views (grau)
The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 18 of 51
Back to Result List

Characteristics of air-liquid heat and mass transfer in a bubble column humidifier

  • Bubble columns are recently used for the humidification of air in water treatment systems and fuel cells. They are well applicable due to their excellent heat and mass transfer and their low technical complexity. To design and operate such devices with high efficiency, the humidification process and the impact of the operating parameters need to be understood to a sufficient degree. To extend this knowledge, we use a refined and novel method to determine the volumetric air–liquid heat and mass transfer coefficients and the humidifier efficiency for various parametric settings. The volumetric transfer coefficients increase with both of the superficial air velocity and the liquid temperature. It is further shown that the decrease of vapor pressure with an increase of the salinity results in a corresponding decrease in the outlet humidity ratio. In contrast to previous studies, liquid heights smaller than 0.1 m are investigated and significant changes in the humidifier efficiency are seen in this range. We present the expected humidifier efficiency with respect to the superficial air velocity and the liquid height in an efficiency chart, such that optimal operating conditions can be determined. Based on this efficiency chart, recommendations for industrial applications as well as future scientific challenges are drawn.

Download full text files

Export metadata

Additional Services

Search Google Scholar
Metadaten
Author:Elias Eder, Sandro Hiller, Dieter Brüggemann, Markus PreißingerORCiD
DOI:https://doi.org/10.1016/j.applthermaleng.2022.118240
ISSN:1359-4311
Parent Title (English):Applied Thermal Engineering
Document Type:Article
Language:English
Year of publication:2022
Release Date:2022/03/17
Tag:Air-liquid heat transfer; Air-liquid mass transfer; Bubble column humidifier; Desalination; Humidification-dehumidification
Volume:o.Jg.
Issue:Bd. 209
Article Number:118240
Number of pages:12
Organisationseinheit:Forschung / Forschungszentrum Energie
DDC classes:600 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften und Maschinenbau / 624 Ingenieurbau und Umwelttechnik
Open Access?:ja
Peer review:wiss. Beitrag, peer-reviewed
Publicationlist:Preißinger, Markus
Eder, Elias
Hiller, Sandro
Licence (German):License LogoCreative Commons - CC BY - International - Attribution- Namensnennung 4.0