摘要
通过建立基于中国实验快堆CEFR的超临界二氧化碳布雷顿再压缩循环模型,研究各运行参数对循环效率的影响规律及各参数间的关联机制。经分析,循环最高温度恒定的假设无法反映反应堆参数特性,对布雷顿系统进行针对性优化。研究表明,全程超临界和跨临界循环对分流率和循环温度等运行参数具有不同的需求,布雷顿循环的回热性能直接决定了系统的效率,且循环系统中存在最优运行工质流量,经对比分析给出了系统循环的优化循环方案。
By well modeling a supercritical carbon dioxide Brayton recompression cycle on the basis of sodium-cooled fast reactor CEFR,the effects of cycle parameters on cycle efficiency and the inter-relationship of parameters were studied.The assumption of constant maximum temperature can not reflect the characteristics of the reactor parameters and optimizes the Brayton system.The supercritical and transcritical cycles have different requirements for operating parameters such as split rate and cycle temperature.The heat recovery performance of Brayton cycle directly determines the efficiency of the system.There is an optimal operating fluid flow rate in the system.By comparative analysis,the optimal circulation scheme is given.
出处
《节能》
2018年第7期21-26,共6页
Energy Conservation
关键词
超临界二氧化碳
布雷顿循环
参数优化
supercritical CO2
Brayton recompression cycle
parameters optimization
