A REVIEW OF ANS STANDARD 19.3.4, THE DETERMINATION OF THERMAL ENERGY DEPOSITION RATES IN NUCLEAR REACTORS: THE PAST, PRESENT, AND FUTURE

摘要

The Standard ANS 19.3.4 provides guidance for performing calculations to predict thernthermal energy deposition rates in nuclear reactors. It also provides guidance forrndemonstrating the adequacy of the design calculations. In this paper, a review of thernoriginal guidelines contained in the Standard are discussed. The changes made in thern1999 revision, which now make the Standard applicable to CANDU reactors, arernpresented. The changes affected the acceptable approximations used in making energyrndeposition calculations. In addition, in view of the current programmatic activities ofrnaccelerator driven devices, the need and necessary considerations for expanding thernStandard to encompass higher particle energies than found in reactors is discussed. Thernpaper concludes that it would be prudent to expand the Standard to cover such devices.