Coil Evaporative Condensers

Evaporative condensers provide heat rejection for many types of systems, and the specific application will largely determine which INDUS MAKES Evaporative Condenser is best suited for a project. The information contained within this section is geared towards the use of evaporative condensers in the HVAC and light industrial markets only. Evaporative condensers are used in these markets to provide lower condensing temperatures and compressor horsepower savings of up to 15 percent when compared with traditional systems. For technical support with a refrigeration application, contact your local INDUS MAKES Refrigeration.

Principle of Operation
The vapor to be condensed is circulated through a condensing coil, which is continually wetted on the outside by a recirculating water system. Air is pulled over the coil, causing a small portion of the recirculating water to evaporate. The evaporation removes heat from the vapor in the coil, causing it to condense.

Configuration

INDUS MAKES manufactures two types of evaporative condensers: Combined Flow and Counter Flow.

Combined Flow:
Combined Flow is the use of both a condensing coil and fill surface for heat transfer in an evaporative condenser. The addition of fill surface to the traditional evaporative condenser design reduces evaporation in the coil section, reducing the potential for scaling and fouling. INDUS MAKES’s combined flow evaporative condensers utilize the parallel flow of air and spray water over the coil, and crossflow air/water flow through the fill surface.
In parallel flow, air and water flow over the coil in the same direction. In the fill section of INDUS MAKES’s combined flow evaporative condensers, air and water interact in a crossflow configuration: water flows vertically down the fill as air flows horizontally across it.