topic: lumped integral Differential, formulation
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- This Problem Is For Course Lumped Integral Differential Topic Lumped Integral Differential Formulation Very Importa 1 (55.71 KiB) Viewed 14 times
- This Problem Is For Course Lumped Integral Differential Topic Lumped Integral Differential Formulation Very Importa 2 (84.7 KiB) Viewed 14 times
- This Problem Is For Course Lumped Integral Differential Topic Lumped Integral Differential Formulation Very Importa 3 (55.95 KiB) Viewed 14 times
not repeat wrong answer
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PROBLEMS |Coolant Steel cladding Scanned with CamScanner Uranium rod FIG. 2-54
2-11. The core of a Pool reactor is made of cylinderical fuel elements, each composed of uranium rod of radius Rand a stainless steel chadding of negligible thickness (Fig 2-54). The reactor has the uniform temperature Tos initially; than internal energy is assumed to be generted in the uranium rods as Ü" /u" öz)-(Y/R)² line. The where to is the internal energy generation at the center Temperature of The coolant is held constant at T. The heat Transfer cofficient is large. Formulate The Problem *attention to be formulated to under method. Lumped Formulation Scanned with CamScanner
W EXAMPLE. attention 2-10 A Flat Plate of Thinkness 2L having the uniform intial temperature to is Plunged suddenly into a both at constant temperature Too (253) the heat transfer coefficient ish. The density heat capacity, and thermal canductivity of the plate are fe and k, respectively. Formulate the problem. tabe Formlated to under method. *Lumped Formulated # 2-1. Aflat Plate of Thickness 21 having uniform in iTial Temperature To is plunged suddenly into a bath at constant temperature To. Formulate The Problem. T 3 с 2L- Solution, Assume: The conductive hear Transfer of ambient negligible 1) LumPed LumPed Input-out Put+genzace he 3 >h K h Scanned with CamScanner Initial temperature
LumPed attention 0- - 2q = dE →-2hA(T-TP) = 2 SALCOT → T-T00₂ - 3LC ST dt Ezmetz fvct ₂8 (2AL) CT h 6 & mz BLC T 't at [ [² mit -mot I- Too = exp(-h_t) To-To Tos T-T& SLE JT FT To .mt. 2- - → Scanned with CamScanner