2017 | AFC ACCOMPLISHMENTS 120 RIA events have been performed at low temperatures and pressures.The extent of metal-water reaction for several tests is shown in Figure 3 for tests performed inTREAT and SPERT for several test conditions.The SPERT data defines the extent of metal-water reaction as the percent of the mass of the cladding encompassing the active fuel length.The general trends of metal-water reaction vs. energy deposition provide useful information as to the contribution of chemical energy to the system during these transient events. In addition to compiling existing experimental data, a new collabora- tive project with the University of Wisconsin-Madison (UW) has been initiated to predict FCI pressure pulse generation using an FCI predictive tool developed at UW several decades ago.These efforts are focused on using the historical experimental results as benchmark data for predictive capabilities while compiling historical data into a usable form.Work is planned to expand this benchmarking effort and related expertise while beginning to apply these analysis techniques to modernTREAT experi- ment designs.This effort has already gained the attention of international transient testing researchers to provide a gateway to broader developing collaboration in this area. Figure. 3. Metal-water reaction extent results for experiments performed in SPERT and TREAT with UO2 fuels in Zircaloy-2 cladding. Metal-water reaction extent is defined as the total percent-cladding consumed by chemical reaction in the experiment. The SPERT reports specify the total cladding as that next to the active fuel zone.