Definitions

Radiant Asymmetry

The difference between the plane radiant temperature of the two opposite sides of a small plane element. When you stand in front of a campfire or a cold window you are experiencing radiant asymmetry. Shown are the recommended limits for thermal comfort which includes the limits when using radiant walls and ceilings.

Adapted from ANSI/ASHRAE Standard 55 -2004, Thermal Environmental Conditions for Human Occupancy. Copyright 2004, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org). Reprinted by permission from ASHRAE Standard 55-2004. This material may not be copied nor distributed in either paper or digital form without ASHRAE’s permission).

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