Formaldehyde removal performance analysis of a liquid desiccant dehumidification system

Fu, Huangxi; Liu, Xiaohua; Xie, Ying; Líu, Jùn

doi:10.1016/j.buildenv.2017.08.020

Cited by 10 publications

(5 citation statements)

References 18 publications

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“…The reason has been explained in Ref. [6] that the lower the solution concentration, the better the Formaldehyde ε . In addition, as shown in Fig.…”

Section: Effect Of the Return Air Humidity Ratiomentioning

confidence: 95%

“…The model and governing equations for the coupled heat, moisture, and formaldehyde transfer in the LD system have been presented in Ref. [6]. In the model, the parameter of HLC of formaldehyde in solution is required.…”

Section: Model Descriptionmentioning

confidence: 99%

“…Input the VHe and other relevant parameters into the simulation program to simulate the formaldehyde removal performance of the system. The VHes for formaldehyde in 45.7% LiBr solution and 30.7% LiCl solution are presented in Table 1 [6]. The operating parameters and working conditions for the LD system based on the same temperature and the same vapor pressure are listed in Table 2.…”

Section: Performance Assessment Of the Ld Systemmentioning

confidence: 99%

“…The same air dehumidification requirement is considered in Ref. [6], while the same desiccant conditions is considered in this study.…”

Section: Effect Of the Number Of Mass Transfer Units Of Formaldehydementioning

confidence: 99%

“…The results showed that the formaldehyde removal efficiency of this LD system was 27%. Fu et al [6] simulated the formaldehyde removal efficiency of a count-flow LD system using three LD aqueous solutions, namely 44% LiBr, 35% CaCl2 and 29% LiCl. The results showed that the formaldehyde removal efficiency of the three LD solutions can reach more than 45%.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Performance assessment of a liquid desiccant system for formaldehyde removal based on a novel criterion

Wen²,

Wang³

et al. 2022

E3S Web Conf.

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In the era of requirements in indoor air quality, liquid desiccant (LD) dehumidification is regarded as an energy-saving method removing indoor air contaminants during the dehumidification process, which has made considerable progress in recent years. Many previous studies have confirmed that the heat and mass transfer characteristics associated with absorption characteristics and thermophysical properties in LDs play a vital role in contaminants removal performance. The main purpose of this research is to numerically assess the indoor formaldehyde removal performance of a LD dehumidification system with different LDs. In order to make a fair assessment, a novel criterion based on the same temperature and the same vapor pressure which is the same desiccant condition is proposed. A numerical model integrated with heat, moisture, and formaldehyde transfer is used to predict the system performance. This model can rationally simulate the formaldehyde removal performance of the LD dehumidification system by inputting various operating parameters, including indoor air status parameters and outdoor air status parameters. The simulation results show that the number of mass transfer units of formaldehyde (NTUmf) plays a key role in the formaldehyde removal performance. The formaldehyde removal performances decrease with the increase of temperature and humidity ratio of return air, while they increase with the increase of temperature and humidity ratio of fresh air. With the aforementioned results, the study is expected to be beneficial to further improve the removal ability and potential of LD systems for indoor formaldehyde.

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“…The reason has been explained in Ref. [6] that the lower the solution concentration, the better the Formaldehyde ε . In addition, as shown in Fig.…”

Section: Effect Of the Return Air Humidity Ratiomentioning

confidence: 95%

Section: Model Descriptionmentioning

confidence: 99%

Section: Performance Assessment Of the Ld Systemmentioning

confidence: 99%

“…The same air dehumidification requirement is considered in Ref. [6], while the same desiccant conditions is considered in this study.…”

Section: Effect Of the Number Of Mass Transfer Units Of Formaldehydementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performance assessment of a liquid desiccant system for formaldehyde removal based on a novel criterion

Wen²,

Wang³

et al. 2022

E3S Web Conf.

Self Cite

View full text Add to dashboard Cite

show abstract

A state-of-the-art review on the liquid properties regarding energy and environmental performance in liquid desiccant air-conditioning systems

Luo

Yang

2022

Applied Energy

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Performance enhancement analysis of a liquid desiccant dehumidifier with internal cooling for indoor benzene removal

Huang,

Fu,

Wen

2024

Applied Thermal Engineering

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Formaldehyde removal performance analysis of a liquid desiccant dehumidification system

Cited by 10 publications

References 18 publications

Performance assessment of a liquid desiccant system for formaldehyde removal based on a novel criterion

Performance assessment of a liquid desiccant system for formaldehyde removal based on a novel criterion

A state-of-the-art review on the liquid properties regarding energy and environmental performance in liquid desiccant air-conditioning systems

Performance enhancement analysis of a liquid desiccant dehumidifier with internal cooling for indoor benzene removal

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