Patent ID: 6935131
Filing Date: 2005-08-30
Classification: F24F

Abstract:
1. In an indoor facility having an enclosed volume to be humidity controlled, a dehumidification system comprising: an air handling system having a process conduit and a regeneration conduit, a return line fluidly connecting the enclosed volume with an inlet of said process conduit and establishing a process air flow therethrough; means for supplying ambient air to said return line; a supply line fluidly connecting an outlet of said process conduit with the enclosed volume; an aqueous liquid refrigeration system for maintaining a cooling load in said volume; a dehumidification coil in said process conduit operatively connected with said liquid refrigeration system; rotating desiccant means in said air handling system having a first portion disposed in said process conduit and a second portion disposed in said regeneration conduit; fan means in said regeneration conduit for conducting ambient air from an inlet to an outlet; a primary refrigeration system including a compressor thermally coupled with said secondary refrigeration system; waste heat exchange means in said regeneration conduit thermally coupled with said compressor for heating said second portion of said desiccant means to an elevated temperature in said regeneration conduit and for thereby removing in said process conduit a first portion of moisture from said process air flow; and dehumidification means in said process conduit for reheating and removing a second portion of moisture from said process air flow supplied to said supply line.