21st Century Locomotive Technology: Quarterly Technical Status Report 22 DOE/AL68284-TSR22

Sodium battery thermal model completed, and validation started

21st Century Locomotive Technology: Quarterly Technical Status Report 21 DOE/AL68284-TSR21

Development of thermal analysis capabilities for a sodium metal halide battery system was initiated

21st Century Locomotive Technology: Quarterly Technical Status Report 24

Completed sodium battery thermal model update from experimental performance; developed approach to evaluate thermal management strategie

21st Century Locomotive Technology: Quarterly Technical Status Report 23 DOE/AL68284-TSR23

sodium battery heat release parameters were determined experimentall

21st Century Locomotive Technology: Quarterly Technical Status Report 28

Thermal testing of a subscale locomotive sodium battery module was initiated.to validate thermal models. The hybrid trip optimizer problem was formulated. As outcomes of this project, GE has proceeded to commercialize trip optimizer technology, and has initiated work on a state-of-the-art battery manufacturing plant for high energy density, sodium-based batteries

21st Century Locomotive Technology: Quarterly Technical Status Report 19 DOE/AL68284-TSR19

Nozzle geomtry, pilot injection and post injection effects were studied

21st century locomotive technology: quarterly technical status report 26

Parasitic losses due to hybrid sodium battery thermal management do not significantly reduce the fuel saving benefits of the hybrid locomotive. Optimal thermal management trajectories were converted into realizable algorithms which were robust and gave excellent performance to limit thermal excusions and maintain fuel savings

21st Century Locomotive Technology: Quarterly Technical Status Report 29

Hybrid trip optimizer analysis tool has been implemented, to determine the optimal driving and hybrid charge-discharge control for a train

21st Century Locomotive Technology: Quarterly Technical Status Report 14 DOE/AL68284-TSR14

Baseline single cylinder engine testing with unit fuel pump system has been completed. This will support subsequent development of high pressure common rail fuel injection. The hybrid battery vendor is preparing an instrumented battery with improved vibration design

21st Century Locomotive Technology: Quarterly Technical Status Report 11 DOE/AL68284-TSR11

The fuel injection hardware on the single cylinder research engine was upgraded and performance trends were quantified. The effects of fuel injection rate shapes were studied. Long-term cycling of subscale battery cell assemblies has identified aging trends. Follow-up vibration testing of an instrumented COTS battery was performed. Optimal trip planning algorithms were implemented and demonstrated in the interactive, real-time simulation environment