摘要
以带回热的简单超临界二氧化碳(S-CO_2)布雷顿循环为研究对象,详细阐述了循环效率的分析计算方法和过程,讨论了透平入口温度和压力、压缩机入口温度和压比、透平和压缩机效率、回热器效率、压损等因素对循环效率的影响。进一步对于再压缩循环的分析表明,再压缩循环可解决"夹点"问题,从而显著提高循环效率。
Taking the simple supercritical carbon dioxide （S-CO2） Brayton cycle with recuperation as an object of study, the analysis method and process were presented for the cycle efficiency, while the effects of following factors on the cycle efficiency were analyzed, such as the inlet temperature and pressure of turbine, inlet temperature and pressure ratio of compressor, efficiency of turbine and compressor, effectiveness of regenerator, and the pressure loss, etc. A further study on recompression S-CO2 Brayton cycle shows that this cycle is able to solve the problem of pinch point and, as a result, it significantly improves the cycle efficiency.
出处
《发电设备》
2017年第5期305-309,共5页
Power Equipment
关键词
超临界二氧化碳
布雷顿循环
效率
supercritical carbon dioxide
Brayton cycle
efficiency
