The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2011
Filed:
Apr. 09, 2007
Qing LI, Shnaghai, CN;
Thomas A. Plocher, Hugo, MN (US);
Qing Li, Shnaghai, CN;
Thomas A. Plocher, Hugo, MN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A method and computer-readable medium for modeling smoke propagation in a structure are presented, along with applications of the method. A model is provided of a multiplicity of compartments within the structure, and the presence of a fire within a compartment is determined. The energy and smoke released by the fire is estimated, and smoke flows out of the compartment are determined. Each compartment having a smoke source is analyzed, individually, for the propagation of smoke. Each compartment is assumed to have a homogenous upper smoke layer and a lower cool air layer. The analysis includes a mass and energy balance to determine the change in characteristics of the upper smoke layer, where a known pressure for the lower cool air layer is used for the balance. For multiple smoke sources into a compartment, the contributions to the mass and energy balance of each smoke source are considered additive.