Dilution Analysis for Undirectional Diffusers

by E. Eric. Adams, (A.M.ASCE), Lect., Principal Research Engr.; Dept. of Civ. Engrg., Mass. Inst. of Tech., Cambridge, Mass., 02139,

Serial Information: Journal of the Hydraulics Division, 1982, Vol. 108, Issue 3, Pg. 327-342

Document Type: Journal Paper


The paper discusses the mixing mechanics of submerged, multi-port diffusers used to discharge heated water from steam-electric power plants into shallow receiving waters. An analysis for co-flowing diffusers is presented. The analysis is compared with similar fluid flow situations and predicted dilutions are compared with available laboratory measurements. The behavior of a co-flowing diffuser is then contrasted with that of a tee diffuser. A semi-empirical theory is derived for the tee diffuser and is compared with available measurements.

Subject Headings: Diffusion (fluid) | Hydro power | Dilution | Power plants | Fluid flow | Flow measurement | Water discharge measurement | Submerging

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