Thermal-Hydraulic Study: Arkansas Cooling Reservoir

by Herbert S. Riesbol, (F.ASCE), Chief Hydro.; Bechtel Inc., San Francisco, CA,
James B. Anderson, Engrg. Supervisor; Bechtel Inc., San Francisco, CA,
Fred H. Wend, (A.M.ASCE), Engr.; Bechtel Inc., San Francisco, CA,
Harlan T. Holmes, Asst. Mgr. (Production); Arkansas Power and Light Co., Little Rock, AR,

Serial Information: Journal of the Power Division, 1971, Vol. 97, Issue 1, Pg. 93-113

Document Type: Journal Paper


An 850-Mw nuclear power plant to be built by Arkansas Power and Light Company on the Dardanelle Reservoir on the Arkansas River will utilize reservoir water for condenser cooling. Analysis of expected thermal effects due to the cooling water discharge was required to establish that water quality criteria will be met. A review of reservoir heat balance based on flow patterns developed by jet momentum-entrainment theory is described. A thermal-hydraulic laboratory study using a large distorted scale model with controlled atmospheric conditions was undertaken to corroborate the analytical results. Water temperatures were recorded on a three-dimensional pattern utilizing over 300 thermocouples and an automatic digital recorder. Flow patterns were observed and recorded. Model operation, and analysis and interpretation of data are given. Results of both studies are shown and compared.

Subject Headings: Thermal analysis | Hydro power | Power plants | Water discharge | Water quality | Thermal effects | Cooling (wastewater treatment) | Temperature effects | Arkansas

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