STUDY ON OPTIMUM DEHUMIDIFICATION AMOUNT PER UNIT LIGHT/THERMAL AREA OF SOLAR SOLUTION SELF-CIRCULATION DEHUMIDIFICATION SYSTEM

Liu Honggang; Xie Jingchao; Zhang Guangkai; Yao Liming; Du Boyao; Liu Jiaping

doi:10.19912/j.0254-0096.tynxb.2024-1033

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (10) : 344-350. DOI: 10.19912/j.0254-0096.tynxb.2024-1033

STUDY ON OPTIMUM DEHUMIDIFICATION AMOUNT PER UNIT LIGHT/THERMAL AREA OF SOLAR SOLUTION SELF-CIRCULATION DEHUMIDIFICATION SYSTEM

Liu Honggang¹, Xie Jingchao¹, Zhang Guangkai¹, Yao Liming², Du Boyao¹, Liu Jiaping¹

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Abstract

Aiming at the climate characteristics of extreme hot and humid climate region, this study constructed a solar solution dehumidification system （LDDS-SC） with a self-circulation structure of dehumidification/regeneration. The coupling relationship between system dehumidification and solar light/thermal area was comprehensively considered, and the numerical solution was carried out by NTU-Le model. The system dehumidification amount per unit solar collector/PV panel area under different dehumidification and regeneration self-circulation reflux ratio （R_d,R_r） matching conditions is obtained. The results show that under typical working conditions （m_a=1800 m³/h,m_s=4.0 kg/s）, the maximum dehumidification capacity, the system dehumidification capacity per unit collector area and the system dehumidification capacity per unit photovoltaic panel area are about 2.5 times, 15.1 times and 6.2 times of the conventional system, respectively. The optimal dehumidification and regeneration self-circulation reflux ratio of the system is obtained by TOPSIS multi-objective decision-making method as （R_d,R_r） is （0.9,0.1）, and the system dehumidification amount is 4.61 g/s and the system dehumidification amount per unit total area is 0.28 g/（s·m²）. LDDS-SC system shows better dehumidification and energy saving potential than conventional solution dehumidification system.

Key words

solar energy / dehumidification / extreme hot and humid climate zone / self-circulation / recirculation ratio / liquid desiccant

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Liu Honggang, Xie Jingchao, Zhang Guangkai, Yao Liming, Du Boyao, Liu Jiaping. STUDY ON OPTIMUM DEHUMIDIFICATION AMOUNT PER UNIT LIGHT/THERMAL AREA OF SOLAR SOLUTION SELF-CIRCULATION DEHUMIDIFICATION SYSTEM[J]. Acta Energiae Solaris Sinica. 2025, 46(10): 344-350 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1033

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