
Nuclear Reactor
TechnologyAbout
A nuclear reactor is a technological device designed to initiate and control a fission nuclear chain reaction. This process involves the splitting of heavy atomic nuclei, such as uranium-235, to release energy in the form of heat. The heat is then used to produce steam, which drives turbines to generate electricity. Nuclear reactors are crucial for power generation, providing a significant portion of the world's electricity without emitting greenhouse gases during operation. Nuclear reactors consist of key components like fuel rods, moderators, and control rods. Fuel rods contain uranium oxide pellets, while moderators slow down neutrons to sustain the chain reaction. Control rods, made of neutron-absorbing materials, regulate the reaction rate. Reactors come in various designs, including pressurized water reactors (PWRs) and boiling water reactors (BWRs), with ongoing developments in advanced reactor technologies like small modular reactors and Generation IV designs. These advancements aim to enhance safety, efficiency, and cost-effectiveness.