Vornado Air Circulation Systems, Inc.

Johnson Controls Technology Company

Kevin E Keller

Glen W Ediger

Gary P Israel

Michael C Coup

Dustan L Hahn

Luke Edward Kelly

William L Kopko

Michael S Joss

Mustafa Kemal Yanik

Jeffrey Lee Tucker

Jose Ruel Yalung De La Cruz

Mahesh Valiya-Naduvath

Jeffrey N Nichols

Steven C Cozzolino

Charles B Obosu

Dan R Burdette

Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided which include dissimilar internal configurations. The heat exchangers include multiple sets of multichannel tubes in fluid communication with each other. One set of multichannel tubes contains flow channels of one shape and size while the another set of multichannel tubes contains flow channels of a different shape and/or size. The dissimilar flow channels within the multichannel tube sets allow each set of tubes to be configured to the properties of the refrigerant flowing within the tubes.

Multichannel heat exchanger with dissimilar multichannel tubes

The invention is generally directed to an evaporative humidifier having a water distribution system capable of quietly maintaining a continuously saturated wicking element through the use of a pump and water distribution troughs that allow water to be continuously flushed onto the tops of the wicking elements such that greater humidification of the air is achieved and the life of the wicking elements are extended.

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Wichita, KS, United States of America

Kevin E Keller