EC Fan Array Application Guide in Buffalo, NY, USA
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Specifications
- Condition
- new
- Category
- Fans & Ventilation in USA
- Subcategory
- Machinery
- Subcategory 2
- Commercial ventilation solutions
- Listing ID
- 76082708
Description
An EC Fan Array is a wall of EC motorized impellers that operate in parallel. When identical fans operate in parallel, the total airflow rate of the system is the product of an individual fan’s airflow rate times the number of fans in the array. For example, consider a system with a design point of 20,000 cfm at 2.75 in. wg. One TME500-4-34FF EC motorized impeller moves approximately 5,000 cfm at that pressure. Thus, a 2 x 2 fan array would be able to achieve approximately 20,000 cfm. This is illustrated in Figure 1.
There are a few key principles to keep in mind when designing a fan array.
The spacing of the fans in the array is important. Studies have shown that when the ratio of the sides of the array to the number of fans and impeller diameter is greater than or equal to 1.55, there is no loss of performance.
This equation can be expressed as:
A ⁄ (n×D) ≥ 1.55,
A – length of array in x or y plane
n – number of fans in x or y plane
D – outside diameter of fan)