Accession Number : AD0664724

Title :   WIND AND INTERACTION EFFECTS ON FREE-BURNING FIRES.

Descriptive Note : Technical rept.,

Corporate Author : OKLAHOMA UNIV RESEARCH INST NORMAN

Personal Author(s) : Huffman,K. G. ; Welker,J. R. ; Sliepcevich,C. M.

Report Date : DEC 1967

Pagination or Media Count : 69

Abstract : A systematic investigation of the effect of merging on buoyant diffusion flames from burning pools of liquids was made. It was found that the burning rate, and consequently the flame volume and radiation flux to the surroundings, was greatly increased when the burner spacing was such that the flames began to merge into one fire column. When the burner spacing was decreased so that the flames were fully merged, the burning rate tended to drop again. A correlation was developed which would allow the burning rate of interacting or merging, multiple, liquid-fueled fires to be predicted. As the sizes of the multiple fire sources were increased, the increase in burning rate per unit area for merging fires became less as shown by the burning rate per unit area data for hexane and cyclohexane. As the sizes of the individual fires of the multiple array were increased the fires became more opaque to their own radiation; therefore, the radiation from adjacent fires to the fuel surface had less influence.

Descriptors :   (*BURNING RATE, LIQUIDS), (*FIRES, *WIND), INTERACTIONS, FLAMES, FUELS, DIFFUSION, BUOYANCY, HEAT TRANSFER, THERMAL RADIATION, WIND TUNNEL MODELS, CYCLOHEXANES, ALKANES

Subject Categories : Safety Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE