Concept of dehumidification perfectness and its potential applications
Concept of dehumidification perfectness and its potential applications
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除湿完美度的概念及其潜在应用
DOI：
10.1016/j.energy.2015.08.036
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发表时间：
2015-11
期刊：
影响因子：
9
通讯作者：
Zhang, Kaisheng
中科院分区：
文献类型：
--
作者：
Yang, Zili;Lian, Zhiwei;Li, Xi;Zhang, Kaisheng
液体除湿除湿系统在暖通空调行业具有巨大的节能潜力，近年来备受关注。为了获得更好的性能，已经提出了各种除湿机，并通过除湿效果指标来评估。然而，这种广泛使用的指标随着操作条件的不同而变化很大，并且不能区分除湿机固有的传质能力与气流和干燥剂特性的影响。鉴于此，本文提出一种基于质量与能量转换定律的除湿完美度概念，以实现对除湿机固有传质能力的公正评价，摆脱气流和干燥剂溶液的影响。利用公开文献中的实验数据来验证这一概念，并讨论其影响因素。结果发现，除湿机提供的有效液-气接触面积/时间越大/越长，除湿的完美程度就越高。此外，由于各种除湿机的性能不同，例如填料的表面积密度，其除湿效果也有很大差异。这里开发的概念展示了比较、预测和改进各种除湿机性能的巨大潜力。
Liquid desiccant dehumidification system, which presents great potential for energy saving in HVAC industry, has drawn much attention in recent years. Various dehumidifiers have been proposed for achieving the better performance and are used to be evaluated by the indicator: dehumidification effectiveness. However, this widely-used indicator is found varying significantly with the operational conditions and cannot distinguish the inherent mass transfer capability of dehumidifiers from the influence of the properties of airstream and desiccant. In view of this, this paper presents a novel concept named dehumidification perfectness, based on the conversion laws of mass and energy, for realizing the impartial evaluation of the inherent mass transfer capability of dehumidifiers, getting rid of the influence from the airstream and desiccant solution. Experimental data from the open literatures was employed to validate the concept and its affecting factors were then discussed. It was found that higher degree of dehumidification perfectness was obtained with bigger/longer effective liquid–gas contact area/time provided by the dehumidifier. Furthermore, with different properties of various dehumidifiers, such as the surface area densities of packing, their dehumidification perfectness was varying significantly. The concept developed here demonstrates promising potentials for comparing, predicting and improving the performance of various dehumidifiers.
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DOI：
--
发表时间：
2011
期刊：
--
影响因子：
--
作者：
Liu Wei-wei
通讯作者：
Liu Wei-wei
影响因子：
9
作者：
Min-Hwi Kim;Junseok Park;Jae-Weon Jeong
通讯作者：
Min-Hwi Kim;Junseok Park;Jae-Weon Jeong
影响因子：
6.7
作者：
Ronghui Qi;Lin Lu;Hongxing Yang
通讯作者：
Ronghui Qi;Lin Lu;Hongxing Yang
影响因子：
8.7
作者：
X. Liu;K. Qu;Y. Jiang
通讯作者：
X. Liu;K. Qu;Y. Jiang
影响因子：
9
作者：
George Lychnos;P. Davies
通讯作者：
George Lychnos;P. Davies