Design study of a district-heating reactor installed in the basement of a building

摘要

A practical energy source which does not release carbon dioxide is needed in order to protect the environment of the earth. One proposed solution is use of a cassette type nuclear reactor for supplying energy for air conditioning, heating, and hot water in an office building. This paper clarifies the essential points for a compact reactor designed to be installed in the basement of a building, and establishes the concept of the nuclear reactor. The essential points are as follows (1)Construction of the system in a factory and transportation to the installation site by trailer. (2) Passive safety characteristics which do not require operation of an external electrical power source. (3) Safety characteristics for seismic activity or fire, for buildings which do not require additional earthquake or fire-resistant design. (4) Long term remote operation of the compact reactor. The concept of the district-heating reactor MR-1G was discussed and analyzed, and it was proven that the MR-1G satisfies the essential points of the conceptual design requirements.