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5-7. Malfunctioning in a uranium oxide compacting machine resulted in the manufacture of a 0.2-in. thick plate-type fuel element with a discontinuity in it. At a particular cross section, this discontinuity is approximated by assuming that the plate is made of two distinct regions. The midsection, 0.1-in. thick has a thermal conductivity of 1 Btu/hr ft °F and a U235 concentration of 102' nuclei/cm'. The remaining outer regions have 0.9 and 0.8 x 1021 respectively. Neglect cladding and find the maximum temperature at that cross section if the thermal neutron flux is 104, h 5000 Btu/hr ft2 °F, and the coolant-moderator temperature is 500°F. %3D

5-7. Malfunctioning in a uranium oxide compacting machine resulted in the manufacture of a 0.2-in. thick plate-type fuel element with a discontinuity in it. At a particular cross section, this discontinuity is approximated by assuming that the plate is made of two distinct regions. The midsection, 0.1-in. thick has a thermal conductivity of 1 Btu/hr ft °F and a U235 concentration of 102' nuclei/cm'. The remaining outer regions have 0.9 and 0.8 x 1021 respectively. Neglect cladding and find the maximum temperature at that cross section if the thermal neutron flux is 104, h 5000 Btu/hr ft2 °F, and the coolant-moderator temperature is 500°F. %3D

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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5-7. Malfunctioning in a uranium oxide compacting machine resulted in the manufacture of a 0.2-in. thick plate-type fuel element with a discontinuity in it. At a particular cross section, this discontinuity is approximated by assuming that the plate is made of two distinct regions. The midsection, 0.1-in. thick has a thermal conductivity of 1 Btu /hr ft °F and a U233 concentration of 102' nuclei/cm'. The remaining outer regions have 0.9 and0.8 x 102' respectively. Neglect cladding and find the maximum temperature at that cross section if the thermal neutron flux is 1014, h 5000 Btu/hr ft2 °F, and the coolant-moderator temperature is 500°F.
Transcribed Image Text:5-7. Malfunctioning in a uranium oxide compacting machine resulted in the manufacture of a 0.2-in. thick plate-type fuel element with a discontinuity in it. At a particular cross section, this discontinuity is approximated by assuming that the plate is made of two distinct regions. The midsection, 0.1-in. thick has a thermal conductivity of 1 Btu /hr ft °F and a U233 concentration of 102' nuclei/cm'. The remaining outer regions have 0.9 and0.8 x 102' respectively. Neglect cladding and find the maximum temperature at that cross section if the thermal neutron flux is 1014, h 5000 Btu/hr ft2 °F, and the coolant-moderator temperature is 500°F.
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