Abstract
For modern people almost can’t live without Nuclear energy, we must face some problems which are made by Nuclear power. In the processes of nuclear power plants operation, spent fuel is definitely produced. The storage of the spent fuel is always a big problem. Insufficient of storage space can let power plants stop operate and unsafe storage can create nuclear disaster. Spent fuel dry storage system can do some help on that. We do introduce a system module from USA, but it’s not a system that suit for Taiwan. To design and construct a suitable system for Taiwan, we need to do CFD simulations. INER do these jobs with some helps from FLUENT. FLUENT is a commercial CFD program with strong ability. With the helping of FLUENT, INER get the accurate result of simulations. But some steps of simulations have disadvantages, like the iterations and hard on database renewing for FLUENT. With Visual Basic, we produce a new program, ADSS, to solve above problems. This program contains modulized calculation models for fuel assembly, homogenization model for fuel bundles and power distribution. It can also connect with FLUENT and with windows operation interface. This program can make the simulation processes be more effective. With ADSS’ characteristic, we also check if rod bowing could be a trouble on CFD simulations.