Off-Gas and Air Cleaning Systems for Accident Conditions in Nuclear Power Plants

Air cleaning systems are subjected to major challenges under accident conditions and the potential large source terms require the highest environmental protection from atmospheric release. The objective of this report is to consider the principles involved and to survey existing systems and equipment for the mitigation of the consequences of abnormal plant operations, including severe accidents beyond the design basis. Some experiences under abnormal conditions and international trends in the development of accident air cleaning are also included.