Performance Investigation of Liquid Desiccant Dehumidification System Integrated with Solar Thermal Energy and Shallow Geothermal Energy
Abstract
Abstract This paper combines solar thermal energy and shallow geothermal energy with liquid desiccant dehumidification system in the Make-up Air Unit (MAU). The system uses Calcium chloride solution as its absorption solution and utilizes solar thermal energy as a regeneration heat source of the system, regenerating CaCl2 solution. The study improves the dehumidification ability of the MAU with the energy efficient manner. Compared with the traditional dehumidification system, solar energy and shallow geothermal energy can reduce energy consumption. Increasing the air entrance mass rate, absorption solution entrance mass rate, air entrance absolute humidity and absorption entrance concentration improves water removal rate. Decreasing the air entrance mass rate and increasing absorption solution entrance mass rate can improve efficiency. According to the results, the study develops the MAU with an energy-efficient dehumidification manner.