METHOD TO ATTENUATE ENERGY FLOW ACTION, NAMELY LIGHT, HEAT AND CONVECTIVE GAS FLOW ACTION, ON OBJECT TO BE PROTECTED Russian patent published in 2006 - IPC A62C2/00 

FIELD: fire-protective means, particularly adapted to increase fire-resistance rating of load-bearing and enclosing building structures, engineering service units, combustible gas and liquid reservoirs and pipelines with fittings up to predetermined fire-resistance rating value.

SUBSTANCE: method involves forming composite fire-protective member, which covers object to be protected, wherein optimal composition and structure of the member is determined by simulation of heat and mass transfer processes in the fire-protective member and the object with taking into consideration of heating and thermal decomposition influence on thermal and physical characteristics of material, moisture transfer and heat efficiency of moisture evaporation/condensation in the system in fire-protective member-object system, as well as radiant and convective heat exchange through layers of system including fire-protective member and the object. Universal energy conservation equation or nonsteady-state heat conduction equation are used to perform calculations at each layer.

EFFECT: possibility to provide optimal thickness, mass and costs of fire-protective member due to taking into consideration of different physical effects, which provide elimination of radiant-convective heat flow from fire flame to object surface, increased time of fire penetration in the object and improved operational reliability.

3 cl, 1 dwg