Air cooling for Finnish plant
New cooling towers will help to ensure safety at Finland’s Loviisa nuclear power plant even if the seawater normally used to cool the plant were to be unavailable.
Unlike fossil fuelled plants, nuclear reactors also require cooling when shut down to remove heat generated by radioactive decay. For this reason, nuclear plants are also equipped with emergency core cooling systems to ensure that cooling functions are not lost even if there is a major problem with the primary cooling system. Loviisa already has back-up systems to cope in the even ot a loss of seawater, but Fortum says that the new air cooling towers will reinforce the plant’s safety still further.
Air cooling towers were identified as a development target in safety assessments carried out by Finnish nuclear regulator STUK as part of the European Union program of stress tests in response to the Fukushima Daiichi accident in Japan, although Fortum says it has been studying and developing the new seawater-independent cooling system for several years. The towers will be supplied by GEA EGI Contracting Engineering of Hungary, and the project will form part of Loviisa’s annual investment program. The work will be carried out during 2014.
Source: World Nuclear News