Analysis of a 10 MW recompression supercritical carbon dioxide cycle for tropical climatic conditions
作者： Sharath Sathish , Pramod Kumar , Abdul Nassar
DOI: 10.1016/J.APPLTHERMALENG.2020.116499
关键词: Heat exchanger 、 Nuclear engineering 、 Centrifugal compressor 、 Environmental science 、 Overall pressure ratio 、 Turbomachinery 、 Supercritical carbon dioxide 、 Gas compressor 、 Supercritical fluid 、 Turbine
摘要: Abstract Recompression supercritical CO2 (sCO2) power cycles offer higher efficiencies over other sCO2 cycle configurations. This paper addresses the design of a 10 MW recompression suitable for tropical climates with compressor inlet temperature 45 °C and maximum turbine 565 °C to facilitate use conventional steel alloys. A space analysis is carried out by incorporating individual component performance under various operating conditions. The proposed uses single two-stage axial two single-stage centrifugal compressors. results are presented on an efficiency-net-specific work diagram showing Pareto optimal curves range fractions. optimum parameters, pressure ratio, fraction found be 2.0 0.25, respectively, yielding point efficiency 35%. brings forth effect turbomachinery heat exchangers sized off-design performance. applied develop strategies optimally at part load
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