Application of lean manufacturing principles to improve a conceptual 238Pu supply process

Autor: Tomcy Thomas, Rapinder Sawhney, Steven R. Sherman
Rok vydání: 2018
Předmět:
Zdroj: Journal of Manufacturing Systems. 46:1-12
ISSN: 0278-6125
DOI: 10.1016/j.jmsy.2017.10.007
Popis: The mission of the United States (U.S.) Department of Energy’s Pu-238 Supply Project is to rebuild capability to produce 238Pu at the kilogram scale in the U.S. This radioisotope is used by the National Aeronautics and Space Administration (NASA) to power deep space probes, and the supply is dwindling. It was last produced in the U.S. in 1988. A conceptual design of a 238Pu supply process is described that uses existing processes and facilities at Oak Ridge National Laboratory’s Radiochemical Engineering Development Center. The rate-limiting section of the conceptual process was analyzed using discrete-event system simulation to determine expected production rates, bottlenecks, and the effects of time delays on the production rate. Process alternatives were generated based on Lean Manufacturing principles, and those were examined and compared to the original process using simulation to identify better operating strategies.
Databáze: OpenAIRE