Performance Improvement Options for the Supercritical Carbon Dioxide Brayton Cycle.

Technical Information Center Oak Ridge Tennessee

关键词: Brayton cycle;    Carbon dioxide;    Performance;    Capitalized costs;    Configuration;   

RP-ID  :  DE2008935094

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The supercritical carbon dioxide (S-CO(sub 2)) Brayton cycle is under development at Argonne National Laboratory as an advanced power conversion technology for Sodium-Cooled Fast Reactors (SFRs) as well as other Generation IV advanced reactors as an alternative to the traditional Rankine steam cycle. For SFRs, the S-CO(sub 2) Brayton cycle eliminates the need to consider sodium-water reactions in the licensing and safety evaluation, reduces the capital cost of the SFR plant, and increases the SFR plant efficiency. Even though the S-CO(sub 2) cycle has been under development for some time and optimal sets of operating parameters have been determined, those earlier development and optimization studies have largely been directed at applications to other systems such as gas-cooled reactors which have higher operating temperatures than SFRs. In addition, little analysis has been carried out to investigate cycle configurations deviating from the selected 'recompression' S-CO(sub 2) cycle configuration. In this work, several possible ways to improve S-CO(sub 2) cycle performance for SFR applications have been identified and analyzed.