Using the Performance Curve to ‘See’ Energy Consumption

Sam Pelonis, president of Pelonis Technologies, a manufacturer of AC and DC fans and motors, says one way to find the right balance of power and cooling ability, energy efficiency and maintenance cost is to use performance curves in design planning. These are graphical aids that can be developed for a number of conditions, including fan volume, system static pressure, fan speed and brake horsepower.

“The intersection of the system curve with the static pressure curve is called the operating point,” Pelonis explains. “Power requirements are determined by plotting the operating point to the power curve. A big component of effective planning for automated cooling systems is finding a fan with a performance curve that matches the proposed operating point and works in conjunction with other systems, whether using advanced components in an electronic device or combined with a heating system.”

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