Hello, A yearly allocation for the LCRC cluster has been requested with the following updated information: Submitter/PI: Yousry Gohar Project Name: EP_SNF_LLFP Division: NE Project title: Energy Production from Spent Nuclear Fuels and Transmutation of Long-Lived Fission Products Associated funding: Office of Fusion/DOE for the fusion system and LDRD funding for the accelerator system Other Systems: The reserv cluster of the nuclear engineering division Science: The objective is to characterize and to develop this innovative energy system, determine its performance and define the required R-and-D based on the obtained results. System studies, neutronics, thermal hydraulics, and chemical engineering analyses will be performed. Argonne computer clusters and the new energy simulators for nuclear systems design and analyses will be utilized for performing these activities. Detailed analyses will be carried out to determine the performance of different nuclear fuel cycles including three-dimensional Monte Carlo neutronics calculations, transmutation analyses, and material flow streams. Project description: US commercial spent nuclear fuel (SNF) inventories continue to increase (currently at 60,000 MT and growing by some 2,000 MT per year). As SNF contains approximately 1% transuranics, a system based on an accelerator or a fusion driver surround by a subcritical blanket could be utilized to generate energy from the SNF (over 50 GWt of power per year for 30 years from the 600 MT of transuranics of the inventory expected by 2015). Since the proposed fusion burner systems is based on existing, proven technology, it is possible to deploy such systems in the near-term, which would provide source of energy and also help in disposing of SNF. A subcritical liquid blanket based on demonstrated technologies is considered, thus eliminating the need for developing or testing solid fuel forms (rods, pellets, or particles) containing transuranics. Further, such a fission system has economic, safety and operational advantages. Finally, the cost of this system overal l should be relatively low compared to other similar options. The first proposed system uses fusion neutrons (14.1 MeV neutrons from Deuterium-Tritium interactions) or spallation neutrons (1 GeV protons beam interacting with lead-bismuth eutectic) to generate energy from the transuranics and transmute the long-lived fission products. The power of the accelerator and fusion driver are in the range of 10 to 50 MW, which is comparable to fusion devices that have operated around the world, such as TFTR in the US and JET in Europe. In comparison, the International Thermonuclear Experimental Reactor (ITER) is designed for more than 500 MWt. The fusion driver would have a Q less than 1.0 (Q is the ratio of the generated fusion power to the input power utilized for operating the D-T plasma). The input power is very small and it is less than 1.6% of the electrical power generated. The second proposed system uses a 25 MW proton beam with proton interacting with lead-bismuth eutectic for spallation reactions. The generated neutrons drive a subcritical assembly for transmuting the transuranics and generation energy. The subcritical blanket is simultaneously capable of utilizing the transuranic elements for energy production and transmuting the long-lived fission products as it takes advantage of the fast neutron spectrum. Such a spectrum has numerous neutronics advantages relative to a thermal neutron spectrum, including its high fission reaction rate per neutron, efficient neutron multiplication and utilization, good neutron economy in the presence of fission products, and lower probabilities for generating higher actinides. The use of a liquid blanket (molten salts or liquid metals) allows for optimizing the power output from the transuranic elements by allowing the transuranic elements to be continuously mixed and their concentration adjusted during operation. In addition, chemistry control during operation can help increase the neutron utilization. In FY11, an approach was determined based the physics analyses. This approach will examined in details during FY12 and the engineering requirements will be included. Such work will require several iterations between the physics and the engineering analyses. Project URL: Current FY Hours Used: undetermined amount New FY Requested allocation: 100000 Q1: 25000 Q2: 25000 Q3: 25000 Q4: 25000 Justification: Thank You, The LCRC Accounts System