| abstract |
High temperature energy can be provided using a containment vessel, a heat retention matrix contained within the containment vessel, a volume of a working fluid contained within the containment vessel and in contact with the heat retention matrix, and, optionally, a reactive compound removal system that removes reactive compounds from the working fluid. The heat retention matrix can optionally include an allotropic form of carbon. The working fluid can optionally include nitrogen gas and one or more noble gases. Related systems, methods, articles of manufacture, and the like are also described. |