Patent ID: 6355091
Filing Date: 2002-03-12
Classification: F24F

Abstract:
A method of ventilating fresh air to a conditioned space by exchanging heat and moisture with exhaust air, the method comprising the steps of:(a) providing a heat transfer desiccant wheel capable of transferring both heat and moisture between the fresh air and the exhaust air, (b) selecting a preferred speed at which to rotate the heat transfer desiccant wheel to maximize either heat transfer or moisture transfer, (c) rotating the heat transfer desiccant wheel at the preferred speed, (d) introducing both fresh air and exhaust air to the heat transfer desiccant wheel thereby transferring heat and moisture between the fresh and exhaust air, (e) directing the fresh, conditioned air to the conditioned space, and (f) expelling the stale exhaust air; whereby the conditioned space is ventilated with dehumidification and heat recovery accomplished efficiently by the same rotating wheel which is rotated at differing speeds to maximize dehumidification or heat recovery.