基于CEFR的超临界二氧化碳循环系统特性分析  

Parameters optimization of supercritical carbon dioxide Brayton cycle based on CEFR

作　　者：芦树平 刘怡雯 林原胜[2] 柯志武[2] 赵振兴[2] LU Shu-ping;LIU Yi-wen;LIN Yuan-sheng

机构地区：[1]中国国际工程咨询有限公司,北京100048 [2]武汉第二船舶设计研究所,湖北武汉430064

出　　处：《节能》2018年第7期21-26,共6页Energy Conservation

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.

关 键 词：超临界二氧化碳 布雷顿循环 参数优化 

分 类 号：TK13[动力工程及工程热物理—热能工程]