Abstract: Proliferation-resistant nuclear reactors are disclosed according to some aspects. In one embodiment the proliferation-resistant nuclear reactor comprises a plurality of spherically-shaped micro-fuel elements (MFEs), each comprising a MFE core having one or more fuel kernels, a buffer external to the fuel kernels, and one or more coatings external to the MFE core providing corrosion resistance, erosion resistance, fission product containment, or a combination thereof. The MFEs are not suspended in a solid material and each MFE is sized such that its delay time is less than its accident time. The nuclear reactor further comprises a reactor core containing at least a portion of the plurality of MEs, wherein the reactor core is configured for cross-flow of a coolant.

Abstract: The present invention is a method and apparatus for matching a secondary steam supply to a main steam supply of a limited enthalpy steam generator when the limited enthalpy steam generator is operating at partial capacity to maintain a primary turbine at full capacity. The limited enthalpy steam generator is connected to the primary turbine with a main steam line. The method and apparatus of the present invention rely upon (a) a secondary steam line connected to the main steam line; wherein (b) the secondary steam is at a secondary steam thermodynamic state substantially matching a main steam thermodynamic state of the main steam as a combined steam; and (c) the combined steam is passed to the primary turbine at full capacity.