Desert Aire, a Milwaukee-based manufacturer of commercial and industrial humidity and climate control systems, has published a new technical resource that explains how carefully defining grow room vapor pressure deficits can produce maximum yields and have favorable impacts on the capital and operational costs of HVAC systems.
“Application Note 28 – Vapor Pressure Deficit and HVAC System Design” is a six-page publication that helps growers, consulting-specifying engineers and mechanical contractors understand the impact of vapor pressure deficit (VPD) on plant growth processes, protecting crops and maximizing yields.
VPD is a metric that indicates the evapotranspiration potential of grow rooms based on current temperatures and humidity levels. The expressed value is the deficit or differential between the pressure exerted by the moisture at a specific room condition and the pressure at the surfaces of plant leaves.
Using explanatory text as well as color figures, charts and tables, Application Note 28 provides readers with a thorough briefing on the control of indoor grow environments through the management of VPD. Understanding the fundamental impact of VPD and temperature on growth and yield is an important starting point for the planning of indoor grow facilities. The publication also outlines how strategically selecting grow room VPD favorably impacts the sizing of environmental control equipment and associated costs. It is the latest in a series of technical resources from Desert Aire intended to inform industry professionals about grow room issues and HVAC equipment strategies.
The publication is available for download as a PDF document at desert-aire.com. To receive a printed copy of the publication, email sales@desert-aire.com.