ColdWallReaktoren
ColdWallReaktoren, also known as Cold Wall Reactors, are a type of nuclear reactor design that separates the primary coolant system from the secondary coolant system. This design feature is intended to enhance safety by reducing the risk of radioactive contamination in the event of a coolant leak. In a ColdWallReaktor, the primary coolant, which directly interacts with the nuclear fuel, is kept separate from the secondary coolant, which is used to generate steam for electricity production. This separation is achieved through a barrier, or "cold wall," which prevents direct contact between the two coolant systems. The primary coolant is typically a liquid metal, such as sodium or lead, while the secondary coolant is usually water. The cold wall is designed to withstand high temperatures and pressures, and it is typically made of a material that is resistant to corrosion and radiation damage. ColdWallReaktoren are used in various applications, including research, power generation, and propulsion. They are particularly attractive for space applications due to their high efficiency and low weight. However, they also face challenges such as the need for advanced materials and the potential for increased complexity in design and operation.