Abstract: A heat exchanger including a header having a plurality of header openings with rigid tubes that may be made of plastic are inserted in the openings. The tubes are sealed to the header to prevent leakage between the header and the tubes to prevent water and air leakage between the wet, scavenger air stream flowing through the tubes and a dry air stream flowing around the tubes. A method of making the heat exchanger includes providing the openings with a flange and uses an interference fit between the rigid heat exchange tubes and the header openings. A self-leveling sealant may be used to seal the heat exchanger tubes to the header using, for example, a paint roller and/or a paint sprayer.

Abstract: A heat exchanger including a header having a plurality of header openings with rigid tubes that may be made of plastic are inserted in the openings. The tubes are sealed to the header to prevent leakage between the header and the tubes to prevent water and air leakage between the wet, scavenger air stream flowing through the tubes and a dry air stream flowing around the tubes. A method of making the heat exchanger includes providing the openings with a flange and uses an interference fit between the rigid heat exchange tubes and the header openings. A self-leveling sealant may be used to seal the heat exchanger tubes to the header using, for example, a paint roller and/or a paint sprayer.

Abstract: A method to manufacture an engineered air-conditioning system that satisfies desired air-conditioning specifications, the engineered air-conditioning system including a refrigeration component coupled to at least one of an energy recovery system and an indirect evaporative cooling system, the method comprising: pre-determining a plurality of pre-engineered refrigerated air conditioning units as a plurality of standard refrigeration components, each component satisfying a different air conditioning specification; selecting one of the standard refrigeration components that substantially satisfies the desired air conditioning specification; custom designing at least one of the energy recovery system and the indirect evaporative cooling system to satisfy the desired air conditioning specification; and assembling the selected standard refrigeration components with at least one of the custom designed energy recovery system and indirect evaporative cooling system to create the engineered air conditioning system that

Abstract: A method to manufacture an engineered air-conditioning system that satisfies desired air-conditioning specifications, the engineered air-conditioning system including a refrigeration component coupled to at least one of an energy recovery system and an indirect evaporative cooling system, the method comprising: pre-determining a plurality of pre-engineered refrigerated air conditioning units as a plurality of standard refrigeration components, each component satisfying a different air conditioning specification; selecting one of the standard refrigeration components that substantially satisfies the desired air conditioning specification; custom designing at least one of the energy recovery system and the indirect evaporative cooling system to satisfy the desired air conditioning specification; and assembling the selected standard refrigeration components with at least one of the custom designed energy recovery system and indirect evaporative cooling system to create the engineered air conditioning system that

Abstract: A heat exchanger including a header having a plurality of header openings with rigid tubes that may be made of plastic are inserted in the openings. The tubes are sealed to the header to prevent leakage between the header and the tubes to prevent water and air leakage between the wet, scavenger air stream flowing through the tubes and a dry air stream flowing around the tubes. A method of making the heat exchanger includes providing the openings with a flange and uses an interference fit between the rigid heat exchange tubes and the header openings. A self-leveling sealant may be used to seal the heat exchanger tubes to the header using, for example, a paint roller and/or a paint sprayer.