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Air Change formula can help make your building more energy efficient (Photo by Scott Olson/Getty Images)
<p>Air Change formula can help make your building more energy efficient.</p>

Using Air Change Formula for HVAC Success

How often does air enter and exit a room from an HVAC system within an hour? That’s exactly what an air change formula, by Rob Falke, president of the National Comfort Institute, on tries to find out.

Falke said the number of room air changes can be compared with the Required Air Changes table he includes in the column. If there is a lack of balance, building managers may need to take a renewed look at how they can save too much air form leaving the facility.

Engineering room airflow may present a real challenge when balancing an HVAC system. Most calculations only use the heat loss or gain of a room to decide on required airflow and often don’t take into consideration required room ventilation needs. Let’s take a look at how an air change calculation may simplify this step in your air balancing.

Falke breaks it down even further, equations and all, on Read more there and have a better understanding of the air flow in your building.

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