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A Pressurized Water Reactor fuel rod is 1 2 f t long and 0 . 3 7 4 inches in diameter ( outer ) on
A Pressurized Water Reactor fuel rod is long and inches in diameter outer on a inch square pitch. The fuel pellet diameter is inches. The fuel rod gap is constant with a width of inches. The system pressure is psia and can be assumed to be constant. The coolant at the inlet is at with an injection mass flow rate of The average linear heat rate is The peak to average power ratio is given as for a sine power shape. Assume no extrapolation distance, a constant gap heat transfer coefficient of and a constant convective heat transfer coefficient of Also assume constant fluid properties given as:
The fuel thermal conductivity is constant at and the cladding thermal conductivity is BTUhrftF
Calculate and plot the axial distributions for the coolant, outer cladding, inner cladding, pellet surface, and pellet centerline temperatures. points
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