ENCON Evaporators
1368 Hooksett Road
Hooksett, NH 03106
Phone: (603) 624-5110
Fax: (603) 627-9520

ENCON Wastewater Evaporator vs. Bottom Heated Evaporators

Heat Exchanger Efficiency

The heat exchanger for the ENCON Wastewaster Evaporator is a Turbulent Flow Immersed Chamber, elevated off the bottom of the evaporator tank and completely surrounded by wastewater. Bottom heated systems primarily use the bottom of the evaporator tank as the heat transfer surface. This translates to a significantly larger heat transfer surface area for ENCON Evaporators (up to 3X larger) compared to the bottom heated design. This larger surface area results in a greater heat transfer efficiency; yielding encon a gas consumption advantage of about 30% for the ENCON Evaporator.

Heat Exchanger Longevity

Since the heat exchanger for the ENCON Wastewaster Evaporator is elevated, solids settle past rather than onto the heat transfer surface. Bottom heated evaporators allow the solids to settle onto the heat transfer surface, which causes an insulating affect and reduces heat transfer efficiency. In addition to reduced efficiency, this can cause the bottom of the evaporator tank (i.e. the heat transfer surface) to degrade and buckle since heat is trapped underneath the settled solids and cannot escape.

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