Performance analyses of a new system for water harvesting from moist air that combines multi-stage desiccant wheels and vapor compression cycles
Performance analyses of a new system for water harvesting from moist air that combines multi-stage desiccant wheels and vapor compression cycles
复制标题
结合多级干燥剂轮和蒸汽压缩循环的从潮湿空气中收集水的新系统的性能分析
DOI：
10.1016/j.enconman.2019.111811
复制
发表时间：
2019-10
影响因子：
10.4
通讯作者：
Hwang Yunho
中科院分区：
文献类型：
--
作者：
Tu Rang;Hwang Yunho
本文讨论了干燥气候地区从空气中收集水供住宅使用的有效方法。提出了一种空气处理过程，通过多级除湿轮对空气进行加湿，然后由蒸发器除湿以收集水。这种方法不仅提高了蒸发温度，而且大大提高了集水率（WHR）。对多级干燥轮的两种配置进行了比较，并提出了合适的干燥轮结构、长度和级数。在能源系统方面，比较了热泵系统（HPS）的两种配置，强烈推荐热回收，这可以将系统性能提高70%左右。研究了集水后空气的冷凝温度和出口湿度比对余热比和集水效率（WHE）的影响。当环境条件为40℃、5g·kg−1时，建议在ωreg,out为6g·kg−1、tC为90℃条件下运行，WHR和WHE可分别达到32.5kg·h−1和1.26kg·kWh−1。研究了采用MSDW-2和HPS-2的系统在不同环境条件下的性能，并针对不同的ω ambi范围总结了具有高WHE的ω reg, o u t范围。
This paper discusses effective ways to harvest water from air for residential use in dry climate area. An air handling process was proposed to humidify the air through multi-stage desiccant wheels before being dehumidified by the evaporator to harvest water. This approach not only increases the evaporating temperature but also increases the water harvesting rate (WHR) greatly. Two configurations of multi-stage desiccant wheels were compared, and proper desiccant wheel structure, length and number of stages were suggested. As for the energy system, two configurations of heat pump system (HPS) were compared and heat recovery is highly recommended, which can increase the system performance by around 70%. Effects of condensing temperature and outlet humidity ratio of air after water harvesting on WHR and water harvesting efficiency (WHE) were studied. When the ambient condition is 40° C and 5 g· kg− 1, it is suggested to be operated under the condition that ω reg, o u t is 6 g· kg− 1 and t C is 90° C. WHR and WHE can reach 32.5 kg· h− 1 and 1.26 kg· kWh− 1, respectively. Performances of the system, which adopts MSDW-2 and HPS-2, under different ambient conditions were studied and ω reg, o u t ranges with high WHE were summarized for different ranges of ω ambi.
登录
查看更多内容
影响因子：
6.4
作者：
Rang Tu;Y. Hwang;Fei Ma
通讯作者：
Rang Tu;Y. Hwang;Fei Ma
影响因子：
10.4
作者：
M. Eslami;F. Tajeddini;N. Etaati
通讯作者：
M. Eslami;F. Tajeddini;N. Etaati
除湿轮系统低温再生的吸附等温线和转速研究
影响因子：
3.9
作者：
Tu Rang;Hwang Yunho;Cao Tao;Hou Mingdong;Xiao Hansong
通讯作者：
Xiao Hansong
DOI：
10.1016/j.egypro.2015.11.081
发表时间：
2015-11
期刊：
Energy Procedia
影响因子：
--
作者：
A. Magrini;Lucia Cattani;M. Cartesegna;L. Magnani
通讯作者：
A. Magrini;Lucia Cattani;M. Cartesegna;L. Magnani
DOI：
10.1016/j.egypro.2015.07.406
发表时间：
2015-08
期刊：
Energy Procedia
影响因子：
--
作者：
A. Magrini;Lucia Cattani;Marco Cartesegna-;L. Magnani
通讯作者：
A. Magrini;Lucia Cattani;Marco Cartesegna-;L. Magnani