Karl Lee Egbert
Engineers in Bailey, CO
License number
Colorado 29083
Issued Date
Jun 30, 1993
Renew Date
Jul 1, 2009
Expiration Date
Jun 30, 2011
Type
Professional Engineer
Address
Address
102 Desparado Ct, Bailey, CO 80421
Professional information
Evaporative Cooler
US Patent:
6282915, Sep 4, 2001
Filed:
Jan 24, 2000
Appl. No.:
9/489776
Inventors:
Karl Egbert - Bailey CO
Assignee:
IndireX - Bailey CO
International Classification:
F28D 500
US Classification:
62314
Abstract:
An evaporative cooler including a cross-flow plate heat exchanger formed by a plurality of stacked, fluted plates. The evaporative cooler may be operated in an indirect evaporative cooling process, or in a combined direct and indirect mode. The heat exchanger operates as a cross between a cross-flow exchanger and a counter-flow exchanger because the primary and secondary air streams are not perpendicular or parallel to one another, but rather, are oriented at an oblique angle. In a preferred embodiment formed by stacked hexagonal plates, the shape of the exchanger lends itself to the application of water on a primary side to achieve two-stage (indirect plus direct) evaporative cooling. In the two-stage operation mode, all six sides of the heat exchanger have water flowing through the corrugated flutes. The heat exchanger provides a single, compact design that utilizes all six sides for air inlet and outlets, providing a higher efficiency exchanger as compared to traditional compact indirect evaporative cross-flow plate heat exchangers.