An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
This report contains a description of an ongoing study of gravity currents for conditions which match those we expect to find in unwanted fires in buildings. A review is made of the pertinent literature and a description is given of the flow regimes which
Two unique walk-on deck construction systems were exposed to the standard NFPA 251 time-temperature fire exposure for periods up to two hours in order to evaluate their fire performance. A large scale steel structure was used in the test program to
This report discusses the application of specific fire safety features and their impact on visitor safety. It is the product of a unique effort in intergovernmental cooperation. The report demonstrates the direct benefits of the National Bureau of
Kinetic constants of the self-heating reaction were determined for plywood, a retardant treated plywood, and eight samples of polyurethane foam represnting possibly two different kinds of foam materials. Under the assumption that self-heating follows a
A furnishing arrangement representitative of those in U.S. Park Service lodging facilities was evaluated for its open burn (free burn) characteristics. The arrangement consisted of a double bed with a wood headboard and one wood night table. The proximity
Application of a nonazeotropic mixture to a refrigeration machine offers a new degree of freedom in controlling machine performance by control of circulating mixture composition. Presenting possible thermodynamic cycles of such a machine operating with
The recent surge of interest in nonazeotropic refrigerant mixtures has generated a need for correlation and prediction of liquid phase information for mixture. We show that the ideal mixture assumption (the linear weighting of pure liquid properties) can
The relationship between cyclic refrigerant migration and cyclic loss for a residential, split-system air conditioner has been investigated. The cyclic refrigerant migration was measured at different points in the operating cycle by simultaneously shutting
K C. Smyth, J. H. Miller, R. C. Dorfman, William G. Mallard, R J. Santoro
Detailed species concentration profiles have been measured using optical and mass spectrometric methods in an atmospheric pressure methane/air diffusion flame burning on a Wolfhard-Parker slot burner. Relative concentrations have been determined for OH by