Maksym Maksymov, Odessa National Polytechnic University, Ukraine.Svitlana Alyokhina, A.Pidgorny Institute of Mechanical Engineering Problems of the National Academy of Sciences of Ukraine; V.N.Karazin Kharkiv National University, Ukraine.Oleksandr Brunetkin, Odessa National Polytechnic University, Ukraine.

• Preface.1. Physical Safety Basis of WWER Nuclear Fuel2. Modern Approaches to the Heat Exchange Modelling in NPP Equipment3. Safety Criteria for WWER-1000 Fuel Assembly when Making a Decision about its Dry Storage4. Effect of Reactor Capacity Cyclic Changes on Energy Accumulation of Irreversible Creep Deformations in Fuel Claddings5. Analysis of WWER 1000 Fuel Cladding Failure6. Thermal Safety Criteria for Dry Storage of Spent Nuclear FuelConclusions.

Maksym Maksymov, Odessa National Polytechnic University, Ukraine.Svitlana Alyokhina, A.Pidgorny Institute of Mechanical Engineering Problems of the National Academy of Sciences of Ukraine; V.N.Karazin Kharkiv National University, Ukraine.Oleksandr Brunetkin, Odessa National Polytechnic University, Ukraine.

• Preface.1. Physical Safety Basis of WWER Nuclear Fuel2. Modern Approaches to the Heat Exchange Modelling in NPP Equipment3. Safety Criteria for WWER-1000 Fuel Assembly when Making a Decision about its Dry Storage4. Effect of Reactor Capacity Cyclic Changes on Energy Accumulation of Irreversible Creep Deformations in Fuel Claddings5. Analysis of WWER 1000 Fuel Cladding Failure6. Thermal Safety Criteria for Dry Storage of Spent Nuclear FuelConclusions.