The Science of ComfortTM
A variable air volume (VAV) diffuser is essentially a ceiling diffuser with a built-in VAV damper and thermostat. Despite its simplicity, this device comes with many benefits and is an effective way to create small-zone comfort for building occupants.
Topics: GRD, Diffusers, Thermal Comfort, HVAC Fundamentals, HVAC, Engineering, Design Engineering
Displacement ventilation provides low velocity air at around 65°F that relies on buoyancy forces to drive the air motion. Supply air spreads across the floor until encountering thermal plumes from heat sources that naturally drive the clean, conditioned air up through the breathing zone. Heat and particulate are carried up to high-level return or exhaust grilles instead of getting recycled through the space. The result is high ventilation effectiveness and improved thermal comfort delivered in an energy efficient manner.
Topics: Displacement, Thermal Comfort, HVAC Fundamentals, HVAC, Engineering, Design Engineering, Tech Tip
The future of commercial office design faces a number of challenges, including a shift away from densely occupied open office concepts and a heightened concern for occupant health. North America continues to adopt newer energy codes that task design firms to further reduce energy consumption. In addition, indoor air quality (IAQ) has arguably become a principal element of building design.
Although several air distribution systems can be designed to succeed at both of these elements, underfloor air distribution (UFAD) offers significant flexibility and IAQ improvements over traditional air distribution approaches. While the interior zone design has changed little over the years, the perimeter offering has evolved significantly.
Topics: Underfloor, Thermal Comfort, HVAC Fundamentals, HVAC, Design Engineering, Tech Tip
Published in August 2020 ASHRAE Journal, written by Ryan Idema and Jesse Hendershot
Price Industries is incredibly proud to have partnered with Michigan Air Products, one of the leading manufacturer’s representatives for commercial and industrial HVAC solutions, on this sizeable and impressive project.
Topics: Displacement, Thermal Comfort, HVAC, Engineering, Design Engineering, ASHRAE 62, Engineering Update
In a building’s life cycle, the interior infrastructure may undergo multiple renovations or tenant improvements (TI). A TI project will typically involve adding, moving, or removing walls, furniture,
occupants, electrical wiring, and even the HVAC air distribution system in some instances. TI projects for the air distribution system can cost up to $30/ft2, which brings forth the challenge of ensuring flexibility in the HVAC design to minimize future TI or renovation costs.
Topics: Beams, System Efficiency, Thermal Comfort, HVAC, Engineering, Design Engineering
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