Reactor and fuel assembly design for improved fuel utilization i

Induced nuclear reactions: processes – systems – and elements – With control of reactor – Spectral shift

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

376212, 376329, G21C 700

Patent

active

042933803

ABSTRACT:
An improved reactor and fuel assembly design is disclosed wherein a liquid moderated thermal reactor is initially run with all or a portion of its fuel assemblies in an undermoderated boiling water mode to take advantage of increased conversion ratio at lower H/fuel ratios, and after a suitable period of operation, the neutron spectrum for all or a portion of the undermoderated boiling assemblies is shifted to lower energies to increase reactivity by converting a number of fuel assemblies to a nearer optimum moderated pressurized or non-boiling mode. The increased reactivity allows for continued operation of the modified assembly. The improved reactor and fuel assembly design results in improved fuel utilization and neutron economy and reduced control requirements for the reactor. The design may be augmented by reducing the number of fuel rods comprising the assembly after a suitable period of operation, as disclosed in the applicants copending application filed Nov. 1, 1977, Ser. No. 847,524.

REFERENCES:
patent: 3070531 (1962-12-01), Huet
patent: 3081246 (1963-03-01), Edlund
patent: 3105036 (1963-09-01), Puechl
patent: 3142624 (1964-07-01), Edlund
patent: 3180799 (1965-04-01), Blake
patent: 3801443 (1974-04-01), Yasukawa
patent: 3928128 (1975-12-01), Kollmar

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Reactor and fuel assembly design for improved fuel utilization i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reactor and fuel assembly design for improved fuel utilization i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reactor and fuel assembly design for improved fuel utilization i will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1205211

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.