Air dehumidification by absorption. (A model for numerical calculation)

Especially in modern buildings with small capacity of humidity storage it is necessary to reduce the humidity in the supply air. Normally this was done by using a refrigeration system mostly with CFC's. There are some alternative fluids available, but mostly they show a high global warming potential. All these systems need electrical energy to be driven and therefore it is necessary to consider other possibilities with alternative systems. The most promising systems are sorptive systems that are used now in open cycles. In these systems the air is dehumidified by a liquid sorbent and cooled indirectly by evaporating water in an open circuit. In order to calculate the process of absorption on several conditions, computer based calculations are required. A model that describes the dehumidification process is introduced.