A Theoretical Conceptual Design Framework for a Next-Generation Small Modular Nuclear Reactor

Small modular reactors, or SMRs, are quickly becoming a popular option for the future of nuclear energy. They offer safer, more flexible, and more affordable alternatives to the large traditional reactors we're used to. This project lays out a theoretical design framework for a next-generation SMR that connects the basics of nuclear physics with practical reactor engineering. The framework looks at how important parts like core shape, fuel type and enrichment, neutron moderation, and heat flow affect how the reactor works, how safe it is, and how well it performs. We use computational modeling to simulate reactor behavior under different steady and changing conditions, focusing on keeping neutron use efficient and temperatures stable while relying on passive safety built right into the design. The study also checks out fuel use strategies that aim to cut down waste and extend reactor life, helping with sustainability goals. A big focus is on modular construction methods that make it easier to build and scale reactors while lowering costs, making nuclear power more accessible for a variety of uses like including remote or small-grid areas. By combining physics with practical design ideas, this research sets a strong base for more detailed simulations, testing, and future prototype development. Beyond the basics, this work also explores how advanced materials could improve fuel performance and reactor longevity. It looks into integrating passive cooling systems that don't rely on external power sources, enhancing safety even further. There's attention on how these reactors could work with renewable energy sources, providing a stable base load when solar or wind are intermittent. Plus, the design considers how SMRs might fit into different regulatory environments and public acceptance challenges, aiming to support smoother paths toward real-world deployment. Ultimately, the goal is to help push forward compact, reliable, and environmentally friendly nuclear power systems that can meet the world's growing energy needs and support a cleaner, more sustainable future for everyone.