Multiple mode hybrid heat exchanger

Abstract

A multiple mode hybrid heat exchanger apparatus includes a frame assembly, an indirect heat exchange section, a spray system, an intermediate distribution basin, a direct heat exchange section, a vertical passage, a lower air inlet, a cold water collection basin, and a fan. The direct heat exchange section is disposed below the indirect heat exchange section. The vertical passage is defined by the frame and the direct heat exchange section. The lower air inlet is defined by a plurality of openings in the direct heat exchange section and configured to provide an inlet for air into the vertical passage. The cold water collection basin is disposed below the direct heat exchange section. The fan is to induce a flow of air through the lower air inlet. The multiple mode hybrid heat exchanger is selectably configured to operate in an evaporative mode, a dry mode, and an adiabatic mode.

Images