Dual evaporative pre-cooling system and method therefor
AssigneeDavis Energy Group, Inc.
InventorsRichard C. Bourne, Marshall B. Hunt
Life of this patent
Estimating the term…
Abstract
A dual evaporative pre-cooling system is installed packaged air conditioning units. The dual evaporative pre-cooling system includes an evaporative media disposed in a housing through which incoming condenser air flows. A water distribution device is disposed above the evaporative media. A sump and a pump are located below the evaporative media to recirculate water through the water distribution device and a ventilation air pre-cooling coil. A plurality of pipes connect, and allow circulation of, a water source discharged from the pump through the ventilation air pre-cooling coil, and to the water distribution device.
Claims17
A dual evaporative pre-cooling system for packaged air conditioning units comprising:
- a housing;
- an evaporative media disposed in the housing with an air entry side through which incoming air flows;
- a water distribution device disposed above the evaporative media;
- a sump and a pump located in the housing below the evaporative media, wherein the pump recirculates water through the water distribution device;
- a ventilation air pre-cooling coil;
- and
- a plurality of pipes to connect, and allow circulation of, a water source discharged from the pump through the ventilation air pre-cooling coil, and to the water distribution device.
An evaporative condenser air pre-cooling device for a rooftop unit having a condenser, comprising:
- a housing;
- an evaporative media disposed in the housing with an air entry side through which an incoming air flows;
- a water distribution device supported by the housing and disposed above the evaporative media through which a water source is distributed;
- means for controlling distribution of the water source;
- a controller, and
- a screen located on the air entry side of the evaporative media, wherein removal of the screen and removal of the evaporative media is permitted from the air entry side without moving the water distribution device or the housing.
A method for reducing the energy consumption of a rooftop air conditioning unit having a blower that supplies conditioned air, comprising:
- adding an evaporative condenser pre-cooling device that increases the cooling capacity of the unit;
- and
- reducing the speed of the blower and thereby reducing the energy quantity used to drive the blower during operating hours.
A method for reducing the energy consumption in a rooftop air conditioning unit including a condenser, an evaporator, a compressor and a blower, the method comprising:
- providing an evaporative condenser air pre-cooling device;
- providing a ventilation air pre-cooling coil;
- connecting the evaporative condenser air pre-cooling device to the ventilation air pre-cooling coil;
- circulating a cooling fluid through the evaporative condenser air pre-cooling device and the ventilation air pre-cooling coil.
Dependencies are inferred from the claim text.