Air cooled heat exchanger with intermediate airflow module

A method of using a heat exchange assembly including a first heat exchange module, a second heat exchange module positioned adjacent to the first heat exchange module, a second fan module positioned between the first heat exchange module and the second heat exchange module, and a first fan module positioned adjacent to the second heat exchange module, the method comprising:

• drawing ambient air through the first heat exchange module to transfer heat from a working fluid to the ambient air;
• operating the second fan module to draw air that has passed through the first heat exchange module and to add airflow energy between the first heat exchange module and the second heat exchange module;
• and
• operating the first fan module to draw air through the second heat exchange module and to exhaust the air from the heat exchange assembly.

An air cooled heat exchange assembly, comprising:

• at least two heat exchange modules arranged such that air passes sequentially through the at least two heat exchange modules, each heat exchange module including at least one heat exchange coil configured to transfer heat from a working fluid to the air;
• a first airflow module positioned to move air through the at least two heat exchange modules;
• and
• at least one additional airflow module including one or more fans configured to:
• (i) draw air that has passed through at least one of the at least two heat exchange modules, and (ii) discharge the air toward another of the at least two heat exchange modules,
• wherein the at least one additional airflow module is positioned at a location within the air cooled heat exchange assembly selected from:
• (i) between adjacent heat exchange modules of the at least two exchange modules, and (ii) within at least one heat exchange module of the at least two heat exchange modules.