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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Improvement of the ultrasonic atomization liquid desiccant dehumidification system
Highlights We proposed an optimized design method to improve the performance of UADS. We verified the improvement of the optimized system with experiments. The dehumidification effectiveness of the optimized UADS is enhanced dramatically. Lower-grade desiccant solution can be utilized in the optimized UADS. Less desiccant is consumed in the optimized UADS.
Abstract Liquid desiccant dehumidification system has received much attention in recent years for its important economic benefits in energy saving of buildings. Furthermore, the specific surface area of desiccant solution can be expanded dramatically by the ultrasonic atomization technology, which generates numerous tiny droplets with diameter about 50μm. However, the tiny atomized droplets are found to be easily captured by the wall of dehumidifier chamber, resulting in the poor performance of this type of system. In this paper, a new criterion called “droplets suspension rate” together with an optimized design method was proposed to improve the performance of ultrasonic atomization liquid desiccant dehumidification system via optimizing its dehumidifier chamber. Experiments were carried out to verify the improvement, where the dehumidification effectiveness, desiccant consumption rate and the air temperature rise were adopted as indicators to evaluate the performance of the system. The results showed that the performance of ultrasonic atomization liquid desiccant dehumidification system was enhanced significantly and the desiccant consumption was reduced markedly after the improvement. Moreover, the improved system was found to be able to utilize lower-grade desiccant solution. The criterion and the method proposed may build a foundation for the better design of ultrasonic atomization liquid desiccant dehumidification system.
Improvement of the ultrasonic atomization liquid desiccant dehumidification system
Highlights We proposed an optimized design method to improve the performance of UADS. We verified the improvement of the optimized system with experiments. The dehumidification effectiveness of the optimized UADS is enhanced dramatically. Lower-grade desiccant solution can be utilized in the optimized UADS. Less desiccant is consumed in the optimized UADS.
Abstract Liquid desiccant dehumidification system has received much attention in recent years for its important economic benefits in energy saving of buildings. Furthermore, the specific surface area of desiccant solution can be expanded dramatically by the ultrasonic atomization technology, which generates numerous tiny droplets with diameter about 50μm. However, the tiny atomized droplets are found to be easily captured by the wall of dehumidifier chamber, resulting in the poor performance of this type of system. In this paper, a new criterion called “droplets suspension rate” together with an optimized design method was proposed to improve the performance of ultrasonic atomization liquid desiccant dehumidification system via optimizing its dehumidifier chamber. Experiments were carried out to verify the improvement, where the dehumidification effectiveness, desiccant consumption rate and the air temperature rise were adopted as indicators to evaluate the performance of the system. The results showed that the performance of ultrasonic atomization liquid desiccant dehumidification system was enhanced significantly and the desiccant consumption was reduced markedly after the improvement. Moreover, the improved system was found to be able to utilize lower-grade desiccant solution. The criterion and the method proposed may build a foundation for the better design of ultrasonic atomization liquid desiccant dehumidification system.
Improvement of the ultrasonic atomization liquid desiccant dehumidification system
Yang, Zili (Autor:in) / Zhang, Kaisheng (Autor:in) / Yang, Menghao (Autor:in) / Lian, Zhiwei (Autor:in)
Energy and Buildings ; 85 ; 145-154
16.09.2014
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Improvement of the ultrasonic atomization liquid desiccant dehumidification system
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