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Model test of the inlet to K-Downcomer [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 1962.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
65 pages : digital, PDF file
Additional Creators:
General Electric Company, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
The existing K-Downcomer has the capacity for the new design flow rate, provided the temperature is limited. As the temperature increases, the entrance elbow commences to show cavitation and its capacity is greatly reduced. This capacity is not sensitive to flow rate, but is very sensitive to barometric pressure and the temperature of the flow. Flow as low, as 85,000 gpm exhibit the choking effect at approximately the same temperature as 20,000 gpm. Removal of the orifice plate and effluent back pressure did not influence this choking restriction. If the temperature is kept below the critical value for choking, rounding of the upstream edges of the orifice holes reduces the water level at entry to the entrance elbow about 6-inches, prototype. This report details model tests performed to evaluate prototype behavior for increased flow rats and to recommend those changes required for satisfactory prototype performance. Specific requirements include capability of the orifice plate, downcomer, entrance elbow, and approach tank to pass the design flow rate at the design temperature. Some margin of safety at these conditions is desirable.
Report Numbers:
E 1.99:hw-wsu--7
hw-wsu--7
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
01/31/1962.
"hw-wsu--7"
"DE94016839"
Tinney, E.R.; Lomax, C.C.
Type of Report and Period Covered Note:
Topical; 01/01/1962 - 01/01/1962
Funding Information:
AC06-76RL01830
View MARC record | catkey: 14371677