Boiling water type thermal neutron reactor and its operating met

Details Boiling water type thermal neutron reactor and its operating met Boiling water type thermal neutron reactor and its operating met

1994-08-29

1996-05-21

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By coolant flow

376352, 376418, G21C 732

Patent

active

055197396

ABSTRACT:
The reactor shut-down margin and the thermal margin, as well as the output per unit volume of the core is increased. When A is the total cross sectional area of the non-boiling water areas in the channel boxes each surrounding a fuel assembly and non-boiling water areas outside the channel boxes and B is the cross sectional areas of boiling water areas in the channel boxes, the relation of 1>B/(A+B).gtoreq.0.76 is set. A control unit adjusts a rotational speed of a recirculation internal pump which controls the cooling water flow rate per unit area in the core section to 3.0.times.10.sup.3 t/h/m.sup.2 at the beginning of the operation cycle and controls the cooling water flow rate per the unit area in the core cross section to 3.3.times.10.sup.3 t/h/m.sup.2 at the end of an operation cycle.

REFERENCES:
patent: 4293380 (1981-10-01), Robbins
patent: 4851181 (1989-07-01), Takeda et al.
patent: 5388132 (1995-02-01), Aoyama et al.
Mamoru Akiyama, Light Water Reactor, pp. 56-65, (no date).

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