If you are evaluating an industrial evaporative cooler, you will eventually encounter the term wet-bulb temperature. It is one of the most useful concepts for understanding what evaporative cooling can realistically achieve. Dry-Bulb vs. Wet-Bulb Temperature The...

When people first encounter evaporative cooling, a natural assumption is that colder water should produce colder air. That leads to a common idea: "Why not add ice to the cooler?" The problem is that evaporative cooling does not primarily depend on making the water...

Introduction An EC exhaust fan can be used as part of a negative-pressure ventilation system when its airflow, pressure capability, construction and control functions are appropriate for the application. The basic principle remains the same as conventional...