摘要
液体深度除湿是实现低湿度行业低碳转型的一种有效途径。目前,具有深度除湿潜力(极低蒸气压、非结晶和无腐蚀)的离子液体是传统盐溶液的理想替代。本研究搭建了离子液体深度除湿实验平台,并分析了不同运行工况下的除湿性能。结果表明:降膜/鼓泡吸收方式均能实现较高的深度除湿效果,最低出风含湿量可降至2.0 g/kg(da)以下。同时,对于进口含湿量为3.3 g/kg(da)的低湿工况,降膜装置的除湿效率仅为40%左右。然而,鼓泡装置的除湿效率可达到81%,有效开发了离子液体的深度除湿潜力。此外,总结了两种吸收方式的先进性与适用性,为离子液体深度除湿技术的应用提供指导。
Liquid desiccant deep dehumidification(LDDD)is an excellent way to achieve lowcarbon transformation of low humidity industrial buildings.Currently,ionic liquids(ILs)with extremely low vapor pressure,non crystallization,and non-corrosion are ideal substitutes for salt solutions in traditional LDDD.In this work,the ionic liquid desiccant deep dehumidification experimental platform established and the dehumidification performance is analyzed under different operating conditions.The results show that both falling-film and bubble absorption modes can achieve high deep dehumidification effects,and the minimum outlet humidity ratio can be reduced to below 2.0 g/kg(da).Meanwhile,for low humidity conditions with an inlet humidity ratio of 3.3 g/kg(da),the dehumidification efficiency of the falling film absorption-based device is only about 40%.However,the dehumidification efficiency of the bubble absorption-based device can reach 81%,effectively developing the deep dehumidification potential of IL.In addition,the advantages of two absorption modes are summarized to provide guidance for the application of IL deep dehumidification technology.
作者
曹博文
殷勇高
Giannetti Niccolo
Saito Kiyoshi
CAO Bowen;YIN Yonggao;GIANNETTI Niccolo;SAITO Kiyoshi(School of Energy and Environment,Southeast University,Nanjing 210096,China;Engineering Research Center for Building Equipment,Energy and Environment,Ministry of Education,Southeast University,Nanjing 210096,China;Graduate School of Fundamental Science and Engineering,Waseda University,Tokyo 169-0072,Japan;Waseda Institute for Advanced Study,Waseda University,Tokyo 169-8050,Japan;Department of Applied Mechanics and Aerospace Engineering,Waseda University,Tokyo 169-8555,Japan)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2024年第10期2958-2964,共7页
Journal of Engineering Thermophysics
基金
国家自然科学基金项目(No.52076039)
江苏省研究生科研与实践创新计划项目(No.KYCX23_0270)。
关键词
深度除湿
离子液体
除湿性能
实验研究
deep dehumidification
ionic liquid
dehumidification performance
experimental study
