Based on the EBSILON software,the marine 100 kW supercritical carbon dioxide power cycle system is designed.Firstly,the reliability of the research method in this paper is verified by simulating the 10.31 kW supercritical carbon dioxide power generation system of Sandia Laboratory and the 275 MW supercritical carbon dioxide power generation system of MIT.Then,based on the recompression cycle,the 450 kW supercritical carbon dioxide power cycle system design and off-design calculation analysis are carried out.The results show that the output power of the 100 kilowatt supercritical carbon dioxide power cycle system designed in this paper is 479.351 kW,and the thermoelectric conversion efficiency is 26.7％,which meets the design requirements.Under design conditions,the split ratio of system operation ranges 0.200～0.639,and it is considered that the split ratio 0.639 is the point where the S-CO2 power cycle system starts to make positive work externally.Under off-design conditions,the external output power of the system increases with the increase of the system flow and decreases with the increase of the re compressor flow,which also confirms the feasibility of studying the system control operation from the perspective of mass flow.
关键词
超临界二氧化碳/船舶领域/系统设计/变工况运行控制
Key words
supercritical carbon dioxide/ship domain/system design/off-design operation control
维普
万方数据