Measurement of thermal stratification in large single-cell buildings.

This paper describes measured temperature profiles and thermal stratification in eight aircraft hangar buildings during the heating season. Presented also is the predicted impact of thermal stratification on heating energy requirements. The hangar buildings included two main ceiling heights (9.35 and 17.1 m (31 and 56 ft)), two ceiling types (fiat and Quonset), two types of heating systems (vertical discharge forced warm air and downdraft convective unit heaters), and various types of large external doors.