Effects of Temperature Change on Building Static Pressure Measurement

Robin Rader, P.E., CxA, Design Alaska

Do you provide commissioning or testing on tall buildings, or any multi-story building in a cold place? If so you should be aware of how these conditions affect static pressure measurements. The author of an ASHRAE Journal article on the subject leads this session to explain the effects of cold weather (temperature change) on building static pressure measurement when the indoor and outdoor references at two different elevations. If not addressed, this effect has the potential of over a 100% reading error.

Learning Objectives:

  • Why does control of building static pressure matter
  • Calculation of zero setting error with changes in temperature
  • Methods to reduce weather related sensing errors
  • Verification of sensor and sensor reference tubing as part of the commissioning process


Sponsored By

Evergreen Telemetry

Evergreen Telemetry manufactures a brand-new type of instrument, a 5-in-1 meter for balancing, commissioning, and troubleshooting in commercial buildings. The patented Wrist ReporterTM displays real-time results from as many as ten wireless sensors, including air & water pressure/velocity/flow/temperature/humidity. Applications include duct traverse, flow damper setting, ventilation calculations, room-to-room pressure hierarchies, coil performance testing, and wireless datalogging. This high-productivity instrument makes TAB and Cx Faster, Easier, and Safer.
Website: https://evergreentelemetry.com


Nov 04 2020


1:00 pm


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