NUCLEAR REACTOR CORE AND METHOD OF OPERATING NUCLEAR REACTOR

Title:

NUCLEAR REACTOR CORE AND METHOD OF OPERATING NUCLEAR REACTOR

Document Type and Number:

Japanese Patent JP2002122687

Kind Code:

A

Abstract:

To provide a nuclear reactor core capable of operating a nuclear plant continuously over for 15 years or more without requiring fuel replacement, capable of shortening maintenance manhours and a term of a periodical inspection in the plant, capable of contributing to remarkable enhancement in plant operation rate and an economical aspect, and effective for prevention of nuclear proliferation.

Plural fuel assemblies 103 constituted to be arranged with fuel rods 100 and water rods 107 square-grating likely are arranged square-grating- likely with a fixed pitch. Respective blades 102a of a cross-shaped control rod 102 are insertion-arranged respectively between clearances faced with four adjacent fuel assemblies 100. A ratio B/S of each blade width B of the control rod 102 to a fuel grating area S which is an area of a square having one pitch of the fuel assemblies 103 as its one side is set to be 0.06 or more.

Inventors:

NAKAMARU MIKIHIDE
HIOKI HIDEAKI
SAITO TAKEHIKO
HIRAIWA KOJI
NARABAYASHI SUNAO
OMIZU SATOSHI
SHIMODA TSUYOSHI
ARAI KENJI
MOROOKA SHINICHI
SUZUKI SEIJIRO

Application Number:

JP2000317168A

Publication Date:

April 26, 2002

Filing Date:

October 17, 2000

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOSHIBA CORP

International Classes:

G21C1/08; G21C3/328; G21C5/00; G21C7/04; G21C7/113; G21C7/14; G21C7/24; G21C7/27; (IPC1-7): G21C7/113; G21C3/328; G21C5/00; G21C7/04; G21C7/14; G21C7/24; G21C7/27

Attorney, Agent or Firm:

Hisano Hatano (1 person outside)

Previous Patent: METHOD AND DEVICE FOR HEATING GAS

Next Patent: BOILING WATER TYPE NUCLEAR POWER PLANT