The Science of ComfortTM
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
High performance air systems demand modern design approaches with leading-edge
products and technology in order to optimize comfort and reduce energy consumption. A
comfortable environment is achieved by providing the smallest possible zones of temperature
control, allowing for individual temperature distribution and better air movement. Reduction
in energy is realized by designing a low-pressure HVAC system that allows for maximum
turn-down while maintaining temperatures.
Topics: GRD, Diffusers, Static Pressure, Pressure Drop, Thermal Comfort, HVAC Fundamentals, HVAC, Engineering, Design Engineering
High demands are placed on modern HVAC systems to create optimal indoor environments while minimizing energy usage. Consequently, usage of computer-based analysis tools like computational fluid dynamics (CFD) that aid in the design of these systems is becoming more prevalent. With the recent addendum to ASHRAE 62.1 we expect the demand for CFD analyses to increase even further. The change states that a CFD analysis can be used to estimate the ventilation effectiveness value used to determine the outdoor air requirement instead of tables provided in the standard.
Topics: Mock-Up, Thermal Comfort, HVAC, Engineering, Design Engineering, Engineering Update, CFD
Designing a ventilation system for a swimming pool can be tricky. For occupant comfort, these facilities require 40 to 60% relative humidity to be maintained year round. For swimmers, a humidity range of 50 to 60% is most comfortable. However, humidity levels below 50% can significantly increase energy consumption, while humidity levels above 60% can cause damage due to mold, mildew and condensation.
Topics: GRD, Grilles, Thermal Comfort, HVAC Fundamentals, HVAC, Engineering, Design Engineering, Training, Tech Tip, Handbook, ASHRAE 62, Engineering Update
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