A project team is designing an office building and wants to ensure thermal comfort for...

Increasing air speed can extend the acceptable thermal-comfort range in naturally conditioned spaces by increasing convective and evaporative heat loss from occupants. This can be achieved with ceiling fans, personal fans, operable windows, or other low-energy air-movement strategies. Occupants may remain comfortable at higher indoor temperatures when adequate air movement is available, reducing dependence on mechanical cooling. Radiant heating panels are primarily useful during heating conditions and do not address warm-weather comfort in naturally ventilated spaces. Low-emissivity windows reduce radiant heat transfer and solar-related loads, but they do not provide occupants with the immediate cooling sensation created by moving air. Increasing air speed is therefore the most direct strategy for improving warm-condition thermal comfort while maintaining low-energy operation.