Transient fuel-pin temperature calculations using describing functions. Final report. [PWR; BWR]

Technical Report · Mon Feb 01 00:00:00 EST 1982

OSTI ID:5274824

Guidotti, T E; Peddicord, K L; Nielsen, L H

Temperature dependent properties make the transient thermal analysis of reactor fuel pins nonlinear. Traditionally, finite difference or finite element methods have been used to solve this system. An analytically based method is presented in which the transient temperature profiles are calculated using describing functions to characterize the system nonlinearities. In the past the describing functions approach has been used exclusively in the solution of ordinary differential equation systems. This study appears to be the first application of describing functions in the solution of partial differential equations.

• Research Organization: Oregon State Univ., Corvallis (USA). Dept. of Nuclear Engineering
• OSTI ID: 5274824
• Report Number(s): EPRI-NP-2278; ON: DE82903155; TRN: 82-015990
• Resource Relation: Other Information: Portions of document are illegible
• Country of Publication: United States
• Language: English

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