흡착식 기반 신형식 해수담수-냉방 복합공정 설계

Abstract

In this paper, the new cycle was developed for seawater desalination-cooling process using adsorption. The principle of adsorption desalination is to supply seawater to the evaporator so that evaporated water vapor moves to a bed where theadsorbent, such as silica gel, is packaged for adsorption. Beds that are completed until the adsorption is saturated are desorbed using a heat source such as solar energy or incineration heat. When the water in the seawater supplied to theevaporator evaporates, it receives as much heat as the latent heat of evaporation from the chilled water, thus reducing the temperature of the chilled water and can be used for cooling. The desorbed water vapor is condensed from the condenser to obtain fresh water. When the adsorption technology is applied, the desalination and cooling can be obtained simultaneously by using low-temperature heat, thereby it can reduce the required energy and improve the efficiency of energy use compared to the conventional desalination method. In addition, the concentration seawater can be continuously circulated after seawater desalination to produce fresh water, which increases the recovery rate of fresh water to between 70%and 75%. High concentrations of seawater can significantly reduce the final amount of concentrated water discharged and the by-product such as salts (salt, magnesium, calcium, etc.) can be obtained based on the high concentration of water.