1987/02/01 by L. Y. Cooper, Leonard Y. Cooper, D. W. Stroup +1
Engineering · #Fire Detection and Safety Systems #Fire dynamics and safety research #Fire effects on concrete materials
paper · doi:10.1115/1.3248040
crossref issued 1987/02/01 · crossref published 1987/02/01 · crossref published-online 1987/02/01 · crossref published-print 1987/02/01 · openalex publication_date 1987/02/01 · crossref created 2009/10/21 · crossref deposited 2019/10/03 · openalex created_date 2025/10/10 · crossref indexed 2026/07/30 · openalex updated_date 2026/07/30
A procedure is developed to calculate the thermal response of unconfined nonburning ceilings above growing fires. The procedure uses an algorithm for conduction into the ceiling material. It takes account of heat transfer due to radiation from the combustion zone to the ceiling surface, and due to reradiation from the ceiling to the floor and furnishings. Finally, the procedure uses a previously developed algorithm for convective heat transfer to the ceiling from the fire-plume-driven ceiling jet. The procedure is used to predict radial-dependent surface temperature histories of typical ceiling materials under a variety of different realistic levels of hazardous fire energy generation rates and combustion zone-ceiling separation distances. The results give an indication of the influence of convective heat transfer on peak ceiling thermal response, losses from fire plume gases, and radial variations and peak values of ceiling-to-floor irradiation during enclosure fires.