A novel compressed air drying method based on pressurized liquid desiccant dehumidifier and experimental verification

doi:10.3969/j.issn.0438-1157.2014.z2.008

CIESC Journal ›› 2014, Vol. 65 ›› Issue (z2): 52-57.DOI: 10.3969/j.issn.0438-1157.2014.z2.008

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A novel compressed air drying method based on pressurized liquid desiccant dehumidifier and experimental verification

ZHENG Baojun, YIN Yonggao, ZHANG Xiaosong

School of Energy and Environment, Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, Jiangsu, China

Received:2014-08-14 Revised:2014-08-22 Online:2014-12-30 Published:2014-12-30
Supported by:
supported by the National Natural Science Foundation of China (51376043) and the Foundation for Distinguished Young Scientists of Jiangsu Province (20140026).

压缩空气溶液深度除湿干燥方法及实验验证

郑宝军, 殷勇高, 张小松

东南大学能源与环境学院, 能源热转换及其过程测控教育部重点实验室, 江苏南京 210096

通讯作者: 殷勇高
基金资助:
国家自然科学基金项目(51376043);江苏省杰出青年基金项目(20140026)。

Abstract

Abstract:

A novel compressed air drying method based on a pressurized liquid desiccant dehumidifier is proposed in this paper. An experimental setup of pressurized liquid desiccant dehumidifier associated with a compressed air module is established to verify the novel air drying method and further test the performance. The results show that, under the pressure of 0.5 MPa, the outlet moisture content of air can reach 0.9 g·kg^-1. The moisture removal rate increases with the increase of air velocity, solution flow rate and solution concentration under certain pressure. The feasibility of applying liquid desiccant technology to drying compressed air in related fields is verified.

Key words: compressed air, liquid desiccant, drying, heat transfer, mass transfer, experimental research

摘要：

提出一种基于溶液除湿技术对压缩空气进行深度除湿干燥的方法。搭建压缩空气溶液除湿系统性能测试实验台,以空气出口含湿量和除湿量作为除湿性能的评价指标,对LiCl-H₂O溶液用于压缩空气的逆流除湿过程进行实验研究。探讨压缩空气、溶液进口参数对空气出口含湿量以及除湿量的影响,结果表明:压力0.5 MPa下,空气出口含湿量能够达到0.9 g·kg^-1,且一定压力下系统除湿量随着空气流速、溶液质量流量、溶液质量分数的增加而增大,验证了压缩空气溶液深度除湿干燥方法在相关领域应用的可行性。

关键词: 压缩空气, 溶液除湿, 干燥, 传热, 传质, 实验研究

CLC Number:

TU831.6

ZHENG Baojun, YIN Yonggao, ZHANG Xiaosong. A novel compressed air drying method based on pressurized liquid desiccant dehumidifier and experimental verification[J]. CIESC Journal, 2014, 65(z2): 52-57.

郑宝军, 殷勇高, 张小松. 压缩空气溶液深度除湿干燥方法及实验验证[J]. 化工学报, 2014, 65(z2): 52-57.

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A novel compressed air drying method based on pressurized liquid desiccant dehumidifier and experimental verification

压缩空气溶液深度除湿干燥方法及实验验证

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