Abstract
Idaho National Laboratory has constructed the microreactor non-nuclear experimental test bed (MAGNET) to reduce uncertainty and risk for microreactor developers, users, and regulators. MAGNET will provide verification and validation data for dynamic models and system scaling allowing demonstration and validation of microreactor systems, components, and auxiliary systems. The system was designed around typical air-Brayton parameters with a hot design temperature of 650°C and a maximum allowable working pressure of 22 bar. The differential temperature through the microreactor test article was assumed to be 290°C. MAGNET is compatible with compressed air, nitrogen, or helium as the cooling fluids. Testing to date comprises a single heat pipe proof of concept test and a prototype helium-to-air heat exchanger test for a commercial developer.