Dramm White Paper - Momentum Based Fans for Optimal Air Flow


Horizontal Air Flow has been in use in greenhouses and indoor growing facilities consistently for over 50 years. In the early stages, air speed was the goal. Unfortunately, speed is difficult to keep consistent and hard to maintain.

The true goal of any air distribution system in the greenhouse should be to homogenize the air and its constituents: temperature, humidity, CO2, and even pesticide fogs. Plants transpire more evenly and efficiently when the microclimate around the plant is removed. This paper will discuss the use of momentum-based fan systems to achieve better homogenization and better plant growth.



Dramm White Paper - Momentum Based Fans for Optimal Air Flow


Horizontal Air Flow has been in use in greenhouses and indoor growing facilities consistently for over 50 years. In the early stages, air speed was the goal. Unfortunately, speed is difficult to keep consistent and hard to maintain.

The true goal of any air distribution system in the greenhouse should be to homogenize the air and its constituents: temperature, humidity, CO2, and even pesticide fogs. Plants transpire more evenly and efficiently when the microclimate around the plant is removed. This paper will discuss the use of momentum-based fan systems to achieve better homogenization and better plant growth.