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Northwest Envirofan

A division of

Northwest Environmental Systems, Inc.

 
Toll-Free: 800-236-7080
Phone: 920-235-7808
Fax: 920-235-3049
Email:
info@envirofan.com




Dairy Research

"Cut fan energy use and expense"

A study on 

Electric Power Saving Fan Options for Cow Cooling.

 

If you’re looking to cut fan energy use and expense without a major investment in new equipment and installation costs, consider the 5-foot ceiling fan. 

In a recent study by Southern California Edison, UC Davis, and the California Energy Commission, 5-foot ceiling fans were compared under summer conditions in large commercial dairies to the traditional 36-inch wall-mounted direct drive fans and 20-foot  ceiling fans.

To achieve equal airflow volume, each 1000 cow free stall barn was equipped with either one hundred 5-foot ceiling fans, one hundred 36-inch wall fans or seventeen 20-foot ceiling fans.  Comparisons showed that barn cooling and cow performance response between these different fan options was equal with the following bottom line results:

  • 5-foot ceiling fans – (Agrifan ceiling fans) Equipment and installation costs per fan, $330.  Total energy cost (100 fans) per year $1800 (83% savings over wall fans).

  • 36-inch wall fans -- Equipment and installation costs per fan, $700.  Total energy cost (100 fans) per year $10,760.

  • 20-foot ceiling fans – Equipment and installation costs per fan  $5,325.  Total energy cost (17 fans) per year $1,496 (86% savings over wall fans).

 

Click here for a copy of the complete study.

 

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