Ventilation Requirements
As your ventilation system changes to accommodate increased production, ventilation needs, or process changes, more airflow is required. If your system has not changed, but airflows are not at design performance levels, having a STEP Audit performed will help to determine why this is happening and if a fan change is required.
FANS
Additional or replacement fans are needed as systems are upgraded due to increased airflow requirements. Fans should always be evaluated during troubleshooting. DSHAY Air Systems Inc. will troubleshoot, recommend, repair, or install a new fan system for general equipment needs, Dust Collector upgrades, and conversions.
Dust Collector Capacity
A STEP Audit analyzes your air-to-cloth ratio to determine the operating limits of the dust collector as compared to industry standards.
Ductwork
Existing ductwork diameters from each individual vent point are measured and cross-sectional areas are calculated to ensure the sizes are correct for the required air volumes.
Hoods and Recommended Volumes
The hooding design at pickup points should provide ventilation of the dust point, while minimizing the amount of product introduced into the dust collection system. Improperly designed hoods tend to increase the grain loading beyond what the collector was originally designed to handle. The Industrial Ventilation Guide recommends standard design practices for hood design and volumetric requirements for transfer points.
Based on these practices, specific minimum and maximum volumes are calculated and compared to required volumes. A STEP Audit recommendation is then made regarding the system's potential to perform as installed. |
