NUCLEAR HEATING - MORE ENVIRONMENTALLY FAVOURABLE THAN COAL FIRING.

In 1974 ASEA-ATOM started to work on the development of a nuclear district heating plant. The SECURE nuclear heat reactor was presented in 1976. Such a heating plant consists of three main parts: a reactor submerged in a large pool enclosed by a concrete vessel, a surrounding reactor building and a building for the auxiliary systems. The reactor is refuelled every year or every other year. Its design features include: low pressure (0. 7 MPa), low temperature (120 degree C) of cooling water, and inherent safety function. A description of the reactor and it operation is given.