- Author
-
Yamada, T.
- Title
- Algorithms for Calculating Radiative Heat Exchange Between the Surfaces of an Enclosure, the Smoke Layers, and a Fire. CFR Video Seminar.
- Coporate
- Fire Research Institute, Tokyo, Japan
- Report
-
Video,
July 20, 1990,
- Keywords
-
algorithms
|
heat transfer
|
enclosures
|
smoke layers
- Abstract
- A method of calculating the radiative heat exchange in and between rooms in a multi-room fire environment will be presented. The method can be implemented by a group of algorithms and associated computer subroutines which has been developed. This is named RADA (RADiative Heat Transfer Solver). For any room of a multi-room facility, RADS uses the net radiation transfer method to calculate the radiative heat exchange betwen user-specified elemental surfaces of the enclosure (wall segments, and opinings), the upper- and lower-layer smoke layers, and the radiating fire source. Parallelopiped rooms and gray body enclosure surface elements are assumed. The smoke layers are treated as gray absorbing media and the fire is trated as a radiating point source. Rules to account for room-to-room radiation exchanges through open vents are proposed. RADS has been developed as a modular software package which is suitable for use in any two-layer zone-type multi-room fire model computer code.