Development and investigation on the dehumidification and corrosion resistance performance of a new mixed liquid desiccant

Wen, Tao; Lu, Lin; Nie, Yidan; Zhong, Hong

doi:10.1016/j.ijheatmasstransfer.2018.10.066

Cited by 43 publications

(9 citation statements)

References 29 publications

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“…Consequently, previous investigators put forward some methods to reduce the corrosion rate in terms of surface treatment [25,27] and new material development [94,95]. Liu et al [72] fabricated a fin-tube dehumidifier with internal cooling by using a thermally conductive plastic for the purpose of corrosion resistance, as shown in Fig.…”

Section: Enhanced Structuresmentioning

confidence: 99%

A review of correlations and enhancement approaches for heat and mass transfer in liquid desiccant dehumidification system

Wen

2019

Applied Energy

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Section: Enhanced Structuresmentioning

confidence: 99%

A review of correlations and enhancement approaches for heat and mass transfer in liquid desiccant dehumidification system

Wen

2019

Applied Energy

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“…Wen et al. 19 studied the performance of new type of mixed desiccant which was a combination of 25% LiCl, 39% hydroxyl urea and 36% water. Results indicated that the mixed desiccant gave a less corrosion and dehumidification.…”

Section: Introductionmentioning

confidence: 99%

Assessment of process parameters in a dehumidification process using biomass-based wood shaving as a packing material

Salins

Reddy

2021

Indoor and Built Environment

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In the current study, the performance of the counterflow dehumidification test rig using wood shaving packing has been analysed. Wood shaving packing with the density 500 kg/m3 was used along with the CaCl2 desiccant with varying concentration. Mass flow rate of air was varied and the dehumidification performance parameters like moisture removal rate, dehumidification efficiency, coefficient of performance, change in relative humidity, change in the pressure and mass transfer coefficient were evaluated. Output parameters were compared with the commercially available cellulose packing with the wettability of 632 m2/m3. Results showed that, even though the performance of wood shaving packing is slightly less than the Celdek packing, performance of wood shaving is promising at 40% desiccant solution concentration. Maximum relative humidity difference, coefficient of performance and dehumidification efficiency obtained with wood shaving pad material were found to be 19%, 1.88 and 69.5%, respectively.

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“…However, by enhancing the regeneration performance of the liquid desiccant solution, the utilization of low-grade heat can be improved, which makes the research on regeneration performance very promising. Wen et al proposed a new mixed liquid desiccant with the formula 25% LiCl, 39% hydroxyethyl urea, and 36% water, which has better dehumidification performance and regeneration performance than 35% pure LiCl solution. However, this advantage of both good dehumidification and regeneration performance is not due to the inherent properties of the working liquid itself (such as saturated vapor pressure), but due to the improvement of wettability between the mixed liquid desiccant and the falling film…”

Section: Introductionmentioning

confidence: 99%

Deep Utilization of Low-Grade Heat through Compositional Modulation of Multi-Component Liquid Desiccant

Che

Cheng

Tong

et al. 2022

ACS Appl. Mater. Interfaces

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Low-grade heat is a challenge for deep utilization due to its low temperature. Based on the optimization of the saturated vapor pressure of liquid desiccant in absorption or dehumidification cooling systems, an idea of deep utilization of low-grade heat is proposed in this paper. Instead of optimizing the cycle process or equipment, this paper achieves this goal by obtaining a multi-component salt solution with the advantages of both strong moisture absorption capacity and lower regeneration temperature. The sensitivity of saturated vapor pressure to temperature is defined to evaluate the performance of the salt solution, and the sensitivity mechanism is revealed. The results show that the sensitivity of saturated vapor pressure to temperature increases with the increase of ion charge density, and compositional modulation is proposed to improve the sensitivity. The formula of a multi-component salt solution is taken as an example to illustrate the deep utilization of low-grade heat. As a result, the dehumidification performance of the multi-component dehumidification is equivalent to that of the typical desiccant solution, but its regeneration temperature is about 4 K lower. Furthermore, by using the concept proposed in this paper, it is pointed out that the utilization of low-grade heat can be improved by 40% approximately in an absorption cooling system.

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Development and investigation on the dehumidification and corrosion resistance performance of a new mixed liquid desiccant

Cited by 43 publications

References 29 publications

A review of correlations and enhancement approaches for heat and mass transfer in liquid desiccant dehumidification system

A review of correlations and enhancement approaches for heat and mass transfer in liquid desiccant dehumidification system

Assessment of process parameters in a dehumidification process using biomass-based wood shaving as a packing material

Deep Utilization of Low-Grade Heat through Compositional Modulation of Multi-Component Liquid Desiccant

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