Abstract: A heat exchanger system has two heat exchangers, a first heat exchanger and a second heat exchanger, mounted within a single enclosure, a first air inlet for receiving air from a first air system, a first air outlet, one or more second air inlets for receiving air from a second air system, one or more second air outlets, a first air path defined as a sealed air path from the first air inlet through the first heat exchanger, to the first air outlet, and a second air path, a third air path and a fourth air path, wherein the first air path transfers heat/energy through the first heat exchanger in a counter-flow relation with the third air path, and the second air path transfer heat/energy through the second heat exchanger in a counterflow relation with the fourth air path.

Abstract: A thermodynamic closed loop desiccant rotor system and process utilizes at least one closed recirculation loop that provides interchangeable energy directly to the desiccant material and various rotor isolated zoning configurations in combination with various arrangements of energy exchange devices and refrigeration components to maximize the interchangeable and recovered energy capability and capacity through both closed thermodynamic cycles and open cycle processes for significantly improved efficiency and energy conservation. The present desiccant rotor system may be utilized in an air conditioning system for dehumidification, humidification, moisture removal, and capture of moisture, and in other applications to remove unwanted gases.

Abstract: A desiccant-assisted air conditioning system utilizes a compressor (10), a condenser coil (11), an evaporator coil (13), supplemental desiccant coils (19, 20) connected therewith, and damper (18A, 19B) and valve arrangements that direct air and refrigerant through the system coils in several different thermodynamic operating paths. The system combines, transfers and reverses thermodynamic energies between the desiccant, the refrigerant and the crossing air, and simultaneously maximizes the refrigerant vapor compression closed cycle and desiccant vapor compression open cycle. The desiccant coils (19, 20) not only provide an effective gas phase change in their crossing air streams, but also simultaneously provide endothermic and exothermic energy exchanges between the air streams and the passing refrigerant that maximize the operating efficiency of the compressor, condenser coil, and evaporator coil, conserves energy, and produces quality conditioned air output.

Abstract: A desiccant-assisted air conditioning system utilizes a compressor (10), a condenser coil (11), an evaporator coil (13), supplemental desiccant coils (19, 20) connected therewith, and damper (18A, 19B) and valve arrangements that direct air and refrigerant through the system coils in several different thermodynamic operating paths. The system combines, transfers and reverses thermodynamic energies between the desiccant, the refrigerant and the crossing air, and simultaneously maximizes the refrigerant vapor compression closed cycle and desiccant vapor compression open cycle. The desiccant coils (19, 20) not only provide an effective gas phase change in their crossing air streams, but also simultaneously provide endothermic and exothermic energy exchanges between the air streams and the passing refrigerant that maximize the operating efficiency of the compressor, condenser coil, and evaporator coil, conserves energy, and produces quality conditioned air output.