Solar-driven deep dehumidification system and method

A solar-driven deep dehumidification method, comprising:

• converting solar energy into thermal energy and electrical energy by a solar energy conversion module comprising a concentrator, a spectrum filter, a photovoltaic panel, a rechargeable battery, and a solar thermal collector;
• supplying the thermal energy to a liquid desiccant dehumidification module comprising a dehumidifier, a regenerator, and heat exchangers;
• dehumidifying, in the dehumidifier, a flow of humid air with a flow of cooled concentrated liquid desiccant to produce a flow of dehumidified air and a flow of diluted liquid desiccant;
• regenerating, in the regenerator, the flow of diluted liquid desiccant into a flow of concentrated liquid desiccant using a flow of dry air;
• supplying the electrical energy to a vacuum membrane dehumidification module comprising a feeding chamber, one or more permeable cavities, and a vacuum pumping module;
• and
• further dehumidifying the flow of dehumidified air by feeding the flow of dehumidified air into the feeding chamber and creating a vacuum environment in the permeable cavities such that water vapor within the flow of dehumidified air permeates into the permeable cavities due to a water vapor pressure difference, thereby obtaining a flow of deep-dehumidified air for delivery to a user.