Patent ID: 8506675

Claim:
A gas drying and water producing system comprising: (a) a desiccant subsystem; (b) a main chamber containing said subsystem and so configured as to provide at least one path for airflow from outside said main chamber, into said main chamber, through the desiccant subsystem and through an exit of said main chamber; (c) a second, heating chamber, said heating chamber in fluid communication with said main chamber such that a heat-circulating path is selectively enableable between said chambers, said enableable path allowing a heat circulating flow through said heating chamber into said main chamber, through said desiccant subsystem and back to said heating chamber; (d) the system further comprising a third condensing chamber selectively in gaseous communication with said main chamber; said enableable path allowing a cooling circulating flow through said condensing chamber into said main chamber, through said desiccant subsystem and back to said condensing chamber; (e) a control system configured to place the system into one of at least four states comprising: quiescent, charging, condensing and regenerating, the control system configured to make state changes upon detecting an occurrence of one or more predetermined relationships between at least a modeled dew point within the desiccant subsystem, the temperature and humidity of the system's ambient environment, the temperature of a heat source for the heating chamber, and of the temperature of a cold source for the condensing chamber.