Gas Developments Corporation

Institute of Gas Technology

Raymond J Dufour

William F Rush

Jaroslav Wurm

Sanford A Weil

Efficiency of an open-cycle air conditioning apparatus and method for heating and cooling is improved and the economy of external power is increased both with respect to cost and energy consumption by providing a combination of a primary heater and a secondary heater for heating the regeneration stream for regenerating the desiccant means in the air conditioning apparatus. The thermal source for the primary heater may utilize waste heat or solar energy which is transferred to a solid phase thermal storage means by a gaseous phase heat exchange medium. The thermal energy may be transferred from the thermal storage means to the regeneration stream of the open-cycle air conditioning apparatus either directly by passing the air stream over the solid phase thermal storage means or indirectly by passing liquid in an enclosed system through the solid phase thermal storage means and the regeneration stream.

Air conditioning apparatus and method

A solid adsorption air conditioning apparatus for cooling and heating which is compact in size and particularly adapted to low capacity and which may be at least partially solar powered and air cooled. The apparatus utilizes water vapor as refrigerant working within a hermetically sealed module. The hermetically sealed module has opposing thermally conductive walls which are internally coated with water vapor adsorbent material and thermally insulated from each other. The water vapor working fluid is desorbed from the adsorbent on the interior of a first side by heating while removing heat from the opposing second side causing the working fluid to adsorb in a condenser function at the second side and then applying heat to the second side while removing heat from the first side causing the working fluid to desorb from the second side and adsorb at the first side functioning as an adsorber while the second side is functioning as an evaporator and recycling said thermal condition sequence to provide desired conditioning to an air conditioned space.

Solid adsorption air conditioning apparatus

A solid adsorption air conditioning apparatus and process for cooling and heating which is compact in size and particularly adapted to low capacity and which may be at least partially solar powered and air cooled. The apparatus and process utilizes water vapor as refrigerant working within a hermetically sealed module. The hermetically sealed module has opposing thermally conductive walls which are internally coated with water vapor adsorbent material and thermally insulated from each other. The water vapor working fluid is desorbed from the adsorbent on the interior of a first side by heating while removing heat from the opposing second side causing the working fluid to adsorb in a condenser function at the second side and then applying heat to the second side while removing heat from the first side causing the working fluid to desorb from the second side and adsorb at the first side functioning as an adsorber while the second side is functioning as an evaporator and recycling said thermal condition sequence to provide desired conditioning to an air conditioned space.

Solid adsorption air conditioning apparatus and method

A process for open-cycle air conditioning which affords economy of external power both with respect to cost and energy consumption by providing a low-temperature heater and a high-temperature heater for regenerating the sensible heat exchanger and desiccant when the apparatus is used for cooling and the enthalpy exchanger when the apparatus is used for heating. The power source for the low-temperature heater can utilize solar energy, waste boiler heat, waste process heat, nuclear reactor heat and the like. The power source for the high-temperature heater can be an open flame burner or other conventional heater.

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Wheaton, IL, United States of America

Raymond J Dufour