LiCl Dehumidifier LiBr absorption chiller hybrid air conditioning system with energy recovery

A hybrid air conditioning system for space cooling a building comprising a desiccant dehumidifier and an absorption chiller, said dehumidifier provided with a packed absorption column, an input air line from said building and an output air line;

• a desiccant regenerator for providing hot regenerated desiccant to said dehumidifier absorption column;
• a liquid/liquid heat exchanger coupled between said regenerator and said dehumidifier;
• a blower fan mounted in said output air line for drawing air from said building and make-up through said absorption column where the latent load of said air is removed by said hot desiccant by absorbing moisture from said air;
• a desiccant storage sump for collecting the dilute desiccant from said absorption column and said regenerated desiccant from said regenerator;
• means for pumping said desiccant from said sump either to the top of said dehumidifier or through said heat exchanger back to said regenerator;
• a solar collector, said regenerator provided with a hot water heating coil coupled to said solar collector;
• means for continuously pumping the water in said heating coil through said collector and then back to said coil, said collector maintaining said water at a desired heating temperature in said regenerator for driving off the moisture from said dilute desiccant therein;
• said absorption chiller provided with a vapor generator, a condenser, an evaporator, and an absorber, said condenser coupled to a cooling tower;
• said desiccant sump provided with a cooling line therein which line in turn is coupled to said cooling tower;
• a hot water heater for supplying a driving fluid to said vapor generator;
• said desiccant regenerator provided with an output water vapor line;
• a low pressure compressor and a hot water driven ejector mounted in said vapor line and connected in series with said hot water heater and the vapor generator of said absorption chiller, the heat of vaporization expended in the desiccant regenerator being recovered and used to partially preheat said driving fluid of said absorption chiller;
• a chilled water storage unit coupled to the evaporator of said absorption chiller;
• an air cooler provided with a cooling coil and an output air line to said building, said cooling coil coupled to said chilled water storage unit;
• and said air cooler coupled to said air output line from said dehumidifier, said air cooler removing the sensible load from the dehumidified air flowing therethrough before exiting to said building.