Characteristics of splines for fine distribution control [electronic resource].
- 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:
- 14 pages : digital, PDF file
- Additional Creators:
- General Electric Company
United States. Department of Energy
United States. Department of Energy. Office of Scientific and Technical Information
- The introduction of poison splines as operating aid at the Hanford reactors has resulted in an impressive production increase. This increase is mainly due to the effect on startup control and to better equilibrium flux shaping. In providing sufficient reactivity effect for startup control, however, present splines sometimes increase rather than decrease flattening and distribution control problems when utilized during equilibrium operation. In additional being of constant poison strength along their length, they have limited effectiveness for axial flux control and shaping. It has therefore been proposed that in addition to the present spline, the use of two other types of splines with finer reactivity effects might be advantageous. These splines are as follows: (1) To reduce large rod movements and increase flattening efficiency - a spline with uniform poison distribution along its length but only about 50 per cent of the present spline reactivity strength. (2) To increase axial flux control and shaping -- a spline with poison only on the downstream end, no poison on the upstream end.
- Published through SciTech Connect.
- Type of Report and Period Covered Note:
- Topical; 01/01/1962 - 01/01/1962
- Funding Information:
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