HEAT GENERATION Heat TransferHEAT GENERATIONHeat generation and power output in a reactor are related. Reactorpower is related to the mass flow rate of the coolant and thetemperature difference across the reactor core.EO 2.1 DESCRIBE the power generation process in a nuclearreactor core and the factors that affect the powergeneration.EO 2.2 DESCRIBE the relationship between temperature, flow,and power during operation of a nuclear reactor.EO 2.3 DEFINE the following terms:a. Nuclear enthalpy rise hot channel factorb. Average linear power densityc. Nuclear heat flux hot channel factord. Heat generation rate of a coree. Volumetric thermal source strengthEO 2.4 CALCULATE the average linear power density for anaverage reactor core fuel rod.EO 2.5 DESCRIBE a typical reactor core axial and radial fluxprofile.EO 2.6 DESCRIBE a typical reactor core fuel rod axial andradial temperature profile.HeatGenerationThe heat generation rate in a nuclear core is directly proportional to the fission rate of the fueland the thermal neutron flux present. On a straight thermodynamic basis, this same heatgeneration is also related to the fluid temperature difference across the core and the mass flowrate of the fluid passing through the core. Thus, the size of the reactor core is dependent uponand limited by how much liquid can be passed through the core to remove the generated thermalenergy. Many other factors affect the amount of heat generated within a reactor core, but itslimiting generation rate is based upon how much energy can safely be carried away by thecoolant.HT-02 Page 44 Rev. 0
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
