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US 12,753,937 B2Granted
Cooling recovery system and method
AssigneeHeds Holdings LLC
InventorScot M. Duncan
Life of this patent
Estimating the term…
Abstract
A cooling recover system and method are disclosed. A fluid, such as water, is chilled and provided to a cooling coil to cool and dehumidify air passing over the cooling coil. The fluid is output from the cooling coil through an outlet, and at least a portion of the fluid from the outlet of the cooling coil is provided to an inlet of a heat transfer coil to reheat air passing over the heat transfer coil. The fluid is warmed as it passes through the cooling coil, which warmer temperature serves to reheat the air passing over the heat transfer coil.
Claims20
An air conditioning system comprising:
- a cooling coil having an inlet to receive fluid at a first temperature to cool and dehumidify air that passes over the cooling coil, and having an outlet to output spent fluid at a second temperature, the second temperature being greater than the first temperature due to heat exchange from the air to the fluid occurring during the cooling and dehumidifying of the air;
- a direct expansion coil having a refrigerant, the direct expansion coil configured to receive the cooled and dehumidified air from the cooling coil and cause heat exchange with the refrigerant to further dehumidify and cool the air received from the cooling coil;
- and
- a cooling recovery coil having an inlet to receive the spent fluid from the cooling coil at the second temperature, the cooling recovery coil configured to cause heat exchange to warm the air received from the direct expansion coil, wherein the cooling recovery coil outputs the spent fluid at a third temperature, the third temperature being less than the second temperature.
1 more element
A method comprising:
- cooling and dehumidifying air passed over a cooling coil, the cooling and dehumidifying occurring from heat exchange between the air and a fluid received at a first temperature in an inlet of the cooling coil;
- outputting at least a portion of the fluid at an outlet;
- wherein the portion of the fluid is output at a second temperature that is greater than the first temperature;
- receiving at least a portion of the air from the cooling coil at a direct expansion coil having a refrigerant therein;
- cooling the portion of the air received from the cooling coil by passing the portion of the air received from the cooling coil over the direct expansion coil, the cooling occurring from heat exchange between the air and the refrigerant;
- providing at least a portion of the fluid from the outlet of the cooling coil at the second temperature to a cooling recovery coil and outputting the fluid from a second outlet of the cooling recovery coil at a third temperature that is less than the second temperature;
- and
- warming at least a portion of the air received from the direct expansion coil by passing the portion of the air received from the direct expansion coil over the cooling recovery coil, the warming occurring from heat exchange between the fluid and the air.
5 more elements
Dependencies are inferred from the claim text.