THE EFFECT OF FLUX FLATTENING ON THE ECONOMICS OF HEAVY WATER MODERATED REACTORS

Technical Report · Tue Dec 01 04:00:00 EST 1959

OSTI ID:4200598

Henderson, W J; Hurst, D G

The effects of reflector thickness on reactors with nonuniform cores were considered. The changing ratio of fast to slow neutron flux near the boundary is taken into account and an analysis of reactors containing zones with various rod spacings and irradiations is presented. A cost estimate for reactor power output is included. Those considered are large heavy water moderated natural uranium fueled cylindrical reactors. It was found that a high degree of radial power flattening in a cylindrical reactor can be obtained by using two concentric core zones which differ only in irradiation. The burnup loss from flattening is a function of rod type and reactor size, and the cost benefit resulting from flattening depends on the rod type. (J.R.D.)

• Research Organization: Atomic Energy of Canada Ltd. Chalk River Project, Chalk River, Pnt.
• NSA Number: NSA-14-011289
• OSTI ID: 4200598
• Report Number(s): CRRP-872; AECL-949
• Country of Publication: Canada
• Language: English

Related Subjects

BURNUP
CYLINDERS
ECONOMICS
FAST NEUTRONS
FUEL ELEMENTS
HEAVY WATER MODERATOR
LOSSES
NATURAL URANIUM FUEL
NEUTRON FLUX
POWER PLANTS
REACTOR CORE
REACTOR TECHNOLOGY
REFLECTORS
THERMAL NEUTRONS
THICKNESS
ZONES