tunnel ventilation

BESS Lab

Tests reveal efficiency stalls for some 60-inch ag fans

When it comes to big fans and their benefits for agricultural ventilation, the old logic that bigger is better has hit a snag. Researchers at BESS Lab operated by the University of Illinois at Urbana-Champaign have tested a number of 60-inch fans only to discover that, at a certain point, energy...

tunnel ventilation

Trends in tunnel ventilation

By Sharon Thatcher – As farm buildings grow in size, and livestock herds grow in numbers, so too are the concerns for proper ventilation. While natural ventilation is still common—especially in the beef industry—the poultry and swine industries use a lot of tunnel ventilation which uses large fans to generate air...