The existing commercial nuclear power plants (PWR and BWR) utilize the oxide fuels, i.e., UO₂. This fuel selection is not questionable, where the safety and economy are the top priority in the nuclear industry. In this work, the potential advantages of microencapsulated fuels to System Integrated Modular Advanced Reactor “SMART” has been explored. The UN and UCO have been considered as the candidate fuel material for the SMART reactor. The detailed design and fuel assembly configurations with different fuel types of the SMART reactor have been investigated for criticality with depletion (burn up), fuel and moderator temperature coefficients, and power peaking factor using OpenMC. The fissile and fertile fuel elements with coated particles are embedded in graphite matrices. The results are presented with a review of attributes and potential benefits. The nitride fuel has an advantage of mechanical stability, enhanced thermal conductivity, and high fuel density compared to dioxide fuel (UO₂). The melting point of standard fuel, UN, and UCO are similar. Thus, they have higher safety margins under NPP's operating conditions. Therefore, nitride (UN) and carbide (UCO) fuel types are more attractive than standard uranium oxides because they are safer and beneficial. The dioxide fuel (UO₂) is considered as the reference and compared with candidate material. The neutronic assessment within SMART core specification examined the effective multiplication factor, thermal flux distribution, axial and radial power distribution, and power peaking factor at the beginning, and end of the fuel cycle.

现有的商业核电厂（PWR和BWR）使用氧化物燃料，即UO ₂。安全性和经济性是核工业的重中之重，这种燃料的选择毫无疑问。在这项工作中，已经探索了微囊化燃料对系统集成模块化先进反应堆“ SMART”的潜在优势。联合国和UCO被认为是SMART反应堆的候选燃料。对于使用SMART反应堆的不同燃料类型的详细设计和燃料组件配置，已通过OpenMC研究了其耗竭（燃尽），燃料和减速剂温度系数以及功率峰值因数的临界性。具有涂层颗粒的易裂变和可燃燃料元件被嵌入石墨基体中。呈现的结果包括对属性和潜在利益的回顾。氮化物燃料具有机械稳定性，增强的导热性，₂）。标准燃料，UN和UCO的熔点相似。因此，它们在NPP的运行条件下具有更高的安全裕度。因此，氮化物（UN）和碳化物（UCO）燃料类型比标准铀氧化物更具吸引力，因为它们更安全，更有益。将二氧化燃料（UO ₂）作为参考，并与候选材料进行比较。SMART堆芯规范中的中子学评估评估了燃料循环开始和结束时的有效倍增系数，热通量分布，轴向和径向功率分布以及功率峰值因子。