Abstract: This invention is for a highly efficient heat transfer unit and method for heat transfer for an air conditioning refrigeration unit. The invention has a plurality of condenser coils that stand generally vertically upright (with up to 20° tilt to optimize downward water flow with air being pulled across) between a splash louver and an evaporative fill material. The evaporative fill material and the splash louver transfer heat from the water by air cross flow to make the air conditioning unit very efficient and reduces the amount of copper coils needed. The condenser coils are cooled by water flowing down through them and into a sump. The condenser coils are also cooled by air pulled across them by a fan mounted on the top of the air conditioning unit. The sump in the bottom of the unit has a wall that directs the water in it to a water pump that then sends the water to the water distribution pipe.

Abstract: An air conditioner operating on a compressor-condenser-evaporator circuit utilizes water cooled by air flowing over an evaporative medium through which the water flows to cool a condenser coil located in a continuous serpentine channel in a sump member located at the lower side of the air conditioner unit. The condenser coils include offset intertwined upright coils that provide a large heat exchange surface with water flowing in the channel to a pump intake region of the sump. A pump is provided to supply the evaporative medium with water from the pump intake region of the sump for continuous circulation through the evaporative medium and the sump channel. A water distributor system supplies water uniformly to the top area of the evaporative medium by creating a film of water that is evenly distributed across the top of the evaporative medium.

Abstract: An air conditioner operating on a compressor-condenser-evaporator circuit utilizes water cooled by air flowing over an evaporative medium through which the water flows to cool a condenser coil located in a continuous serpentine channel in a sump member located at the lower side of the air conditioner unit. The condenser coils include offset intertwined upright coils that provide a large heat exchange surface with water flowing in the channel to a pump intake region of the sump. A pump is provided to supply the evaporative medium with water from the pump intake region of the sump for continuous circulation through the evaporative medium and the sump channel. A water distributor system supplies water uniformly to the top area of the evaporative medium by creating a film of water that is evenly distributed across the top of the evaporative medium.

Abstract: A heating and cooling air conditioning system includes serially arranged conductive and evaporative pad heat exchangers through which circulating air to be heated or cooled is moved by a blower. The conductive heat exchanger contains a liquid heat exchange medium that is selectively solar heated or cooled by an evaporative heat exchanger, for example, a cooling tower. A single tank reservoir is provided for the heat exchange medium. A singular air valve controls flow of air into the heat exchangers as well as flow of return air to exhaust. A domestic hot water heating tank is disclosed with a heat exchange loop provided in the solar heated heat exchange medium reservoir tank for heating the service hot water supply.

Abstract: An evaporative cooler according to the invention comprises a one-piece, three-layer pad wrapped around an open-sided cylindrical barrel-like structure. Water is sprayed uniformly over the interior surface of the pad while a centrifugal blower draws air in through the pad from the outside. A novel base design renders it possible to replace the standard square base coolers with the cooler of the present invention. The cooler can be used either with downward or side delivery systems and can easily be adapted to being mounted in a window. The top, base, and barrel are separately fabricated of a non-heat conducting material and are so shaped that they can be nested or stacked for economy of space in storage or shipping.