Thermal performance of annular-coated and sphere-pac LWR fuel rod designs

Conference · Tue Jan 01 04:00:00 EST 1980

OSTI ID:6881846

Guenther, R J; Hsieh, K A; Barner, J O; Freshley, M D

Two FCI-resistant UO/sub 2/ fuel rod designs are being compared to a reference design in irradiation tests in the Halden Boiling Water Reactor (HBWR) as part of the DOE-sponsored Fuel Performance Improvement Program (FPIP). The primary fuel design (annular-coated-pressurized) incorporates annular pellets, a graphite coating on the inner surface of the Zircaloy cladding, and pressurized helium fill gas. Also being investigated is an 87% smear density sphere-pac design with pressurized helium fill gas. The solid pellet (reference) and annular-coated designs described had helium fill gas at approx. 100 kPa and the sphere-pac rods were pressurized at approx. 455 kPa.

• Research Organization: Battelle Pacific Northwest Labs., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6881846
• Report Number(s): PNL-SA-8747; CONF-801107-63
• Country of Publication: United States
• Language: English

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