SCIENCE&TECHNOLOGYINFORMATION科技资讯2023NO.19能源与环境科技资讯SCIENCE&TECHNOLOGYINFORMATION开式布雷顿移动堆电源热电转换运行特性稳态分析吕知讯(中国原子能科学研究院北京102400)摘要：该文针对开式布雷顿移动堆电源发电系统热力循环过程及其运行特性，开展系统稳态运行特性建模研究，建立系统运行工况稳态计算模型。在此基础上，研究开式布雷顿循环系统输出功率、效率以及系统内空气流量随转子转速、堆芯功率的变化规律，为系统运行控制研究提供基础。研究表明：在典型工况中，低转速下空气流量随转速增加而明显增加，高转速下空气流量随转速变化不明显；低转速下输出功率随转速增加而增加，高转速下输出功率随转速增加而减小。换热器出口温度对反应堆功率的敏感性随转速增加而降低；输出功率和输出功效率都随反应堆功率增加而增加。关键词：移动堆电源开式布雷顿循环系统压气机涡轮机稳态分析中图分类号：TL351.1文献标识码：A文章编号：1672-3791(2023)19-0181-07Steady-StateAnalysisofThermoelectricConversionOperationCharacteristicsofOpenBraytonCycleMobileNuclearReactorLYUZhixun(ChinaInstituteOfAtomicEnergy,Beijing,102400China)Abstract:AimingatthethermalcycleprocessandoperationcharacteristicsofthesmallreactorpowergenerationsystemoftheopenBraytonsystem,thesteadystateoperationcharacteristicsmodelingresearchofthesystemiscar‐riedout,andthesteadystatecalculationmodelofthesystemoperationconditionsisestablished.Onthisbasis,theoutputpowerandefficiencyoftheopenBraytoncyclepowergenerationsystemaswellasthevariationoftheairflowinthesystemwiththerotorspeedandreactorpowerarestudied.Thesestudiescanprovideabasisforthesys‐temoperationcontrolresearch.Theresearchshowsthatintypicalworkingconditions,theairflowrateincreasessignificantlywiththeincreaseofspeedatlowspeed,whiletheairflowratedoesnotchangesignificantlywithspeedathighspeed;Theoutputpowerincreaseswiththeincreaseofspeedatlowspeed,anddecreaseswiththeincreaseofspeedathighspeed.Thesensitivityofheatexchangeroutlettemperaturetoreactorpowerdecreaseswiththein‐creaseofrotatingspeed;Theoutputpowerandefficiencyincreasewiththeincreaseofreactorpower.KeyWords:Mobilenuclearreactorpowersupply;OpenBr...
