A solar desiccant pre-treatment electrodialysis regeneration system for liquid desiccant air-conditioning system

Abstract The liquid desiccant air-conditioning system (LDAS) has attracted more and more attentions in recent years. As a kind of renewable energy, solar thermal energy can be used to regenerate the desiccant solution in LDAS. One problem of the solar TH energy regeneration system for LDAS is that solar energy will depend on weather conditions, which means that the solar TH energy regeneration system cannot meet the dehumidification requirements all the time. In this paper, a new solar desiccant pre-treatment ED regeneration system is proposed in order to improve the reliability of solar desiccant regeneration system. The solar desiccant pre-treatment ED regeneration system makes comprehensively use of the solar energy and can work reliably under the condition without plenty of solar energy. Analysis of the solar desiccant pre-treatment ED regeneration system, the solar TH regeneration system and the PV-ED regeneration system is made and the influential factors of the performance of the solar desiccant pre-treatment ED regeneration system are investigated. The results reveal that the solar desiccant pre-treatment ED regeneration system will be more energy efficient than the solar TH regeneration system and the PV-ED regeneration system by setting up the parameters in reason.

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