Abstract: An air conditioner utilizing an evaporatively cooled main heat exchanger for receiving ambient air and indirectly reducing the total heat content of the ambient air for delivery to a point of use. The air conditioner includes an air diversion mechanism which diverts a portion of the air after its passage through the main heat exchanger and supplies the cooled diverted air for use in the evaporative cooling of the main heat exchanger. A feedback mechanism may also be provided for diverting another portion of the air after its passage through the main heat exchanger and supplying this cooled diverted air for mixing with the ambient air prior to its being received by the main heat exchanger.

Abstract: An improved air stabilization system and method used in a refrigerator of a meat packing plant or the like. The improvement comprises positioning rotatably a single mixing damper blade within a damper blade housing such as to regulate the air flow through air openings within the housing.

Abstract: Systems and methods are provided to regulate the environment in a greenhouse where food and flower production is carried out, and in which outside air is inducted into the enclosure of the greenhouse through an evaporative cooler. A portion of the inducted air is recirculated, selectively heated or cooled and dehumidified, and mixed with the inducted air after contact with the agriculture in the greenhouse.

Abstract: A variable air volume air conditioning system is disclosed which is capable of accurately controlling temperature and humidity levels in a conditional zone while achieving significant economy of operation.

Abstract: An air conditioning system comprises a first air duct having an inlet port and an exhaust port opening into a room, a room air circulating fan for introducing the air inside the room into the first air duct through the inlet port and discharging the air into the room through the exhaust port of the first air duct, solar heat collector for producing hot air by utilizing solar heat, a second air duct adjacent to the first air duct on the inlet port side thereof, hot air feeding fan for feeding the hot air from the solar heat collector into the second air duct, a rotary total heat exchanger for dehumidification disposed between said first and second air ducts so as to extend severally in the two ducts, a third air duct adjacent to the first air duct on the downstream side of the rotary total heat exchanger, outside air feeding fan for feeding the outside air into the third air duct, a stationary multi-diaphragm-type sensible heat exchanger for cooling disposed between the first and third air ducts so as to be lo

Abstract: An improved storage assembly for use in apparatus for preserving and rejuvenating items such as vegetables and the like in a refrigerator maintained at a temperature of between 33.degree. F. and 58.degree. F. by surrounding the items with a fog composed of water particles having a diameter of between 1 and 20 microns generated by means of an ultrasonic wave nebulizer with a transducer element. The storage assembly includes a cover and a pan in sealing arrangement with the cover and movable relative thereto. A water reservoir is located in close proximity to the pan and has the transducer element of the ultrasonic wave nebulizer in communication with water in the reservoir for generating the water particle fog. A passageway is provided for delivering the fog from the interior of the reservoir to the interior of the pan.

Abstract: An apparatus in which air in a room such as sickroom, aseptic working room etc. is fed to an water-spraying cyclone to remove dusts and microbes and make air humid, and fed the resulting air to a temperature-regulating cyclone to remove water droplets and regulate a temperature as required, and then fed thus obtained temperature-regulated air to said room for circulation of the air through this system.Using this microbe-removing and air-conditioning apparatus, it is possible to obtain an air of desired temperature and humidity, and at the same time supply an air from which microbes have been completely removed and which is most appropriate for sickroom, operating room etc.

Abstract: Fresh, outside air may be supplied to a first space, such as a dining area of a restaurant or the like, while air from the first space may be recirculated through an air conditioning unit for cooling or heating the air, which is returned to the first space. Also, air from the first space is transferred to a second space, such as a cooking room of a restaurant or the like, which contains heat producing cooking equipment, the latter resulting in the second space having additional cooling requirements. Such transfer air is passed through a chilling device, in which the air contacts water, as through sprays or a water bath, to cool the water to a temperature close to the dew point of the air, and also to correspondingly cool the air furnished to the second space. When cooling of air to the first space is required, either the recirculated air, but preferably the fresh air, is cooled by the chilled water produced by the chilling device.

Abstract: A method and apparatus for cooling internal environment air using energy from the sun. In accordance with the method of the invention, internal environment ("inside") air is circulated over a desiccant and thereby dried. The dried air, which takes on heat as a consequence of the drying operation, is relatively cooled by performing a heat exchange operation with external environment ("outside") air. At this stage, the dried inside air is at a temperature which is only slightly above the temperature of the outside air. Moisture is then added to the dried inside air which had been subjected to the heat exchange operation. The evaporation of the moisture into the dried air restores it to a desired relative humidity and effects a cooling of the air which is then returned to the internal environment. The operation of drying the inside air will, after a time, render the desiccant too wet to perform efficiently. The desiccant is then heated with solar energy so as to remove moisture from the desiccant.

Abstract: A system of preserving fresh produce in a refrigerator displayed for observation and selection by the public, such as in a grocery store. Moisture is applied to the articles, in the form of an extremely fine mist, made up of particles in the range of about 75-150 micron diameter, suspended in air, and slowly falling. The moisture applied to the produce articles is only film-thick so as to minimize flow-off from the articles. Producing the mist includes selectively, hydraulic pressure means, or air pressure means. The mist is controlled by automatic on-off control means and is produced by misting nozzles centrally positioned above the shelf means for supporting various produce articles within the refrigerator display means.

Abstract: A cold storage apparatus in which a gas in a cold storage chamber is fed to a cold water spraying cyclone to make low temperature, moisture rich gas and this gas is fed to a water droplet removing cyclone to remove water droplets and then the resultant low temperature moisture rich gas is allowed to circulate through the cold storage chamber.This cold storage apparatus enables constant low temperature moisture rich cold storage at an optional temperature, and in which apparatus a stable storage of vegetables, fruits, meats and so on can be attained without producing frost and causing drying thereof.OBJECT OF THE INVENTIONAn object of the present invention is to provide a cold storage apparatus for allowing cold storage at a low temperature in a moisture rich condition absolutely without causing freezing.Another object of the present invention is to provide a cold storage apparatus wherein perishables such as vegetables, fruits, meats and the like can be preserved for a long period at a temperature from 0.5.

Abstract: A produce cooler is for use with produce disposed in an enclosure. A vertically extending cooling compartment is located adjacent the enclosure. Within the cooling compartment is a horizontally extending heat exchanger substantially above the bottom of the compartment and well below the top thereof. A demister also extends across the cooling compartment below the top of it and sufficiently above the heat exchanger to leave an intervening chamber. There is a plenum between the produce enclosure and the cooling compartment in communication with produce in the compartment and in communication with the cooling compartment. A fan circulates air from the produce in the compartment through the plenum and into the bottom of the cooling compartment so that the air is made to rise upwardly therethrough and return from the top thereof to the produce in the cooling compartment.

Abstract: A method and apparatus for cooling internal environment air using energy from the sun. In accordance with the method of the invention, internal environment ("inside") air is circulated over a desiccant and thereby dried. The dried air, which takes on heat as a consequence of the drying operation, is relatively cooled by performing a heat exchange operation with external environment ("outside") air. At this stage, the dried inside air is at a temperature which is only slightly above the temperature of the outside air. Moisture is then added to the dried inside air which had been subjected to the heat exchange operation. The evaporation of the moisture into the dried air restores it to a desired relative humidity and effects a cooling of the air which is then returned to the internal environment. The operation of drying the inside air will, after a time, render the desiccant too wet to perform efficiently. The desiccant is then heated with solar energy so as to remove moisture from the desiccant.

Abstract: An air conditioning system for building utilizes a vertically aligned, generally straight conduit rain tower for scrubbing and pumping air between the exhaust air conduit system and the supply air conduit system in conjunction with an evaporative water chiller utilizing a venturi to create a vacuum in the water chiller for low temperature vaporization of return water. Gravity flow of water through the venturi is used to create the suction head.

Abstract: Apparatus for cooling vehicles which includes a cylindrical housing having a side wall opening and an open top, a conduit and pump connected to the bottom of said circular housing for pumping liquid from said housing to at least one heat exchanger, a heat exchanger located in the passenger compartment of the vehicle, a spray head in the open top of said housing and conduit means for feeding fluid from the heat exchanger to the spray head, the liquid discharged through said spray head being cooled, by evaporation, by air flowing through said housing, said cooled liquid, when pumped through said heat exchanger, cooling the passenger compartment of the vehicle.

Abstract: Air is evaporatively cooled by water in which the evaporating water is kept separate from the useful air (cooled air stream) by means of a heat exchanger so that cooling is performed without the addition of water vapor to the useful air, and in which the working air, absorbing the water vapor, is drawn from the load. A heat exchanger is disclosed which operates by movement of the working air internally through tubular conduits countercurrently to water flowing downwardly on the inner surfaces thereof while the air to be cooled passes externally across the conduits.

Abstract: After the intake air for a vehicle's internal combustion type propulsion engine has been throttled down to about the intake manifold pressure, water is sprayed into the air. This air passes through the primary side of an air-to-air heat exchanger so that the vaporization of the water will remove heat from the air passing through the secondary side of the heat exchanger. This cooled air is circulated through an enclosure of the vehicle to provide low cost, low power cooling for the occupants thereof.