Reducing greenhouse gas emissions from electrical power generation is one of the greatest engineering challenges for the 21 st century. Because fossil fuels are expected to continue to play a large role in electrical production until at least 2050, methods for capturing and storing carbon dioxide in cost-effective manner are urgently needed. The Department of Energy currently sponsors large – scale demonstration projects to prove the viability of carbon capture and sequestration (CCS). A major technical challenge in CCS is compressing the carbon dioxide after it is captured. Dresser-Rand (D-R) is developing advanced high-pressure ratio single stage compression technology to reduce the cost of carbon dioxide compression. Dresser-Rand has previously used Titan to simulate carbon dioxide compression technology, and will test first-generation compression technology based on these results in 2015. The current work focuses on the multi-scale modeling of rotating stall in a centrifugal compressor and the advancement of the next generation of CCS compression technology by generating optimized designs of the existing compressor geometry. D-R has demonstrated effective leadership-scale computing on the Titan system through intelligently driven optimizations. The rapid development of new compressor designs is a salient example of the exceptional capabilities provided through the ALCC project, and the incredible scientific and industrial opportunities enabled by the conjunction of high-performance computing and large scale optimization methods.
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