Cargo and Priority Parcel Service. For loss or damage concerns with your shipment, contact American Airlines Cargo to file a claim. American Airlines Cargo Customer Service Opens another site in a new window that may not meet accessibility guidelines. Refunds and receipts FAQs. General refund policies Opens another site in a new window that may not meet accessibility guidelines.
An HVAC cooling tower is used for disposing or rejecting heat from chillers. Air cooled chillers are less effecient than water cooled chillers due to rejection of heat from tower water near wet-bulb temperatures.
Approach to Wet Bulb, Cooling Range. Cooling towers are designed to cool water to a certain temperature under a given set of condi-tions. The wet bulb temperature is the lowest temperature to which water can be cooled by evaporation. It is not practical to design a tower to cool to the wet bulb temperature.