The core of a high-temperature, gas-cooled nuclear
Chapter 8, Problem 8.51(choose chapter or problem)
The core of a high-temperature, gas-cooled nuclear reac-tor has coolant tubes of 20-mm diameter and 780-mmlength. Helium enters at 600 K and exits at 1000 K whenthe flow rate is 8?10?3kg/s per tube.(a) Determine the uniform tube wall surface tempera-ture for these conditions. b) If the coolant gas is air, determine the required flowrate if the heat removal rate and tube wall surfacetemperature remain the same. What is the outlettemperature of the air?
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