Study of the dynamic characteristics of liquid desiccant dehumidification processes

Lingshi Wang; Fu Xiao; Xiaofeng Niu

doi:10.18462/iir.icr.2015.0813

Study of the dynamic characteristics of liquid desiccant dehumidification processes

Lingshi Wang, Fu Xiao, Xiaofeng Niu

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

This paper develops a liquid desiccant dehumidification experimental facility. Tests on the dynamic characteristics of the dehumidification process are conducted on the counter-flow structured packing dehumidifier. The time constant of the dynamic response is defined to characterize the dynamic processes. Experiments with different inlet conditions show that time constants of the outlet air humidity ratio and temperature are not always equal. The transient time can be up to 250 seconds before the outlet variables of air achieve steady state. The dynamic responses of the outlet humidity ratio and temperature to the step changes of the mass flow rate of solution are also tested. The experimental results and analysis can be used for modeling validation of liquid desiccant dehumidification processes.

Original language	English
Title of host publication	24th IIR International Congress of Refrigeration, ICR 2015
Publisher	International Institute of Refrigeration
Pages	3050-3056
Number of pages	7
ISBN (Electronic)	9782362150128
DOIs	https://doi.org/10.18462/iir.icr.2015.0813
Publication status	Published - 1 Jan 2015
Event	24th IIR International Congress of Refrigeration, ICR 2015 - Pacifico Yokohama, Conference Center, Yokohama, Japan Duration: 16 Aug 2015 → 22 Aug 2015

Conference

Conference	24th IIR International Congress of Refrigeration, ICR 2015
Country	Japan
City	Yokohama
Period	16/08/15 → 22/08/15

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering
Mechanical Engineering
Condensed Matter Physics

More information

10.18462/iir.icr.2015.0813

Cite this

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title = "Study of the dynamic characteristics of liquid desiccant dehumidification processes",

abstract = "This paper develops a liquid desiccant dehumidification experimental facility. Tests on the dynamic characteristics of the dehumidification process are conducted on the counter-flow structured packing dehumidifier. The time constant of the dynamic response is defined to characterize the dynamic processes. Experiments with different inlet conditions show that time constants of the outlet air humidity ratio and temperature are not always equal. The transient time can be up to 250 seconds before the outlet variables of air achieve steady state. The dynamic responses of the outlet humidity ratio and temperature to the step changes of the mass flow rate of solution are also tested. The experimental results and analysis can be used for modeling validation of liquid desiccant dehumidification processes.",

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Study of the dynamic characteristics of liquid desiccant dehumidification processes. / Wang, Lingshi; Xiao, Fu; Niu, Xiaofeng.

24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, 2015. p. 3050-3056.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AB - This paper develops a liquid desiccant dehumidification experimental facility. Tests on the dynamic characteristics of the dehumidification process are conducted on the counter-flow structured packing dehumidifier. The time constant of the dynamic response is defined to characterize the dynamic processes. Experiments with different inlet conditions show that time constants of the outlet air humidity ratio and temperature are not always equal. The transient time can be up to 250 seconds before the outlet variables of air achieve steady state. The dynamic responses of the outlet humidity ratio and temperature to the step changes of the mass flow rate of solution are also tested. The experimental results and analysis can be used for modeling validation of liquid desiccant dehumidification processes.

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