基于CEFR的超临界二氧化碳循环系统特性分析
|
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.
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.
引文
[1]张振兴,武林林.应用于钠冷快堆的超临界二氧化碳布雷顿循环系统[J].硅谷,2014,(10):192-193.
[2]黄彦平,王俊峰.超临界二氧化碳在核反应堆系统中的应用[J].核动力工程,2012,33(3):21-26.
[3]梁墩煌,张尧立,郭奇勋,等.核反应堆系统中以超临界二氧化碳为工质的热力循环过程的建模与分析[J].厦门大学学报(自然科学版),2015,(5):609-613.
[4]张剑城.高温气冷堆气体透平循环分析及堆芯动态仿真研究[D].上海:上海交通大学,2009.
[5]高峰,孙嵘,刘水根.二氧化碳发电前沿技术发展简述[J].海军工程大学学报(综合版),2015,12(4):92-96.
[6]段承杰,杨小勇,王捷.超临界二氧化碳布雷顿循环的参数优化[J].原子能科学技术,2011,45(12):1490-1494.
[7]段承杰,王捷,杨小勇,等.CO2与He动力循环比较[J].核动力工程,2010,31(6):64-69.
[2]黄彦平,王俊峰.超临界二氧化碳在核反应堆系统中的应用[J].核动力工程,2012,33(3):21-26.
[3]梁墩煌,张尧立,郭奇勋,等.核反应堆系统中以超临界二氧化碳为工质的热力循环过程的建模与分析[J].厦门大学学报(自然科学版),2015,(5):609-613.
[4]张剑城.高温气冷堆气体透平循环分析及堆芯动态仿真研究[D].上海:上海交通大学,2009.
[5]高峰,孙嵘,刘水根.二氧化碳发电前沿技术发展简述[J].海军工程大学学报(综合版),2015,12(4):92-96.
[6]段承杰,杨小勇,王捷.超临界二氧化碳布雷顿循环的参数优化[J].原子能科学技术,2011,45(12):1490-1494.
[7]段承杰,王捷,杨小勇,等.CO2与He动力循环比较[J].核动力工程,2010,31(6):64-69.