复叠式超临界二氧化碳布雷顿循环系统■分析
|
摘要
通过建立超临界二氧化碳(S-CO_2)布雷顿复叠式循环系统,首先分析在不同高温汽轮机入口温度和系统循环压比下压缩机的最佳分流系数,再讨论汽轮机分流系数对各部件■损系数的影响。研究表明:汽轮机分流系数的变化对系统的效率影响较大,在研究复叠式循环最佳工况时,研究汽轮机分流系数必不可少,且复叠式循环放热、吸热和回热过程■损系数相对很大,仍是系统优化的重点。
Throughing the establishment of supercritical carbon dioxide(S-CO_2) cascaded partial flow Brayton cycle, the optimal splitting coefficient of the compressor under different high temperature turbine inlet temperature and system circulating pressure ratio is analyzed. Then the influence of turbine splitting coefficient on the exergy damage coefficient of each component is discussed. Research shows that: the change of the steam turbine shunt coefficient has great influence on the efficiency of the system, so the compressible shunt coefficients is of great importance to the whole system research in the study of the optimal working conditions of cascaded partial flow cycle, for cascaded partial flow Brayton cycle, the exergy losses coefficient of exothermic process, endothermic process and reheating process are still greatest, which is still the focus of system optimization.
Throughing the establishment of supercritical carbon dioxide(S-CO_2) cascaded partial flow Brayton cycle, the optimal splitting coefficient of the compressor under different high temperature turbine inlet temperature and system circulating pressure ratio is analyzed. Then the influence of turbine splitting coefficient on the exergy damage coefficient of each component is discussed. Research shows that: the change of the steam turbine shunt coefficient has great influence on the efficiency of the system, so the compressible shunt coefficients is of great importance to the whole system research in the study of the optimal working conditions of cascaded partial flow cycle, for cascaded partial flow Brayton cycle, the exergy losses coefficient of exothermic process, endothermic process and reheating process are still greatest, which is still the focus of system optimization.
引文
[1] Shu G,Shi L,Tian H,et al. An Improved CO2-based Transcritical Rankine Cycle (CTRC) used for engine waste heat recovery[J]. Applied Energy,2016,176:171-182.
[2] Li M J,Zhu H H,Guo J Q,et al. The Development Technology and Applications of Supercritical CO2,Power Cycle in Nuclear Energy,Solar Energy and Other Energy Industries[J]. Applied Thermal Engineering,2017,126:255-275.
[3] 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):1489-1494.
[4] 杨胜仲,郭子祯,陈昌本,等. 超临界CO2热发电系统研究现况分析[A]. 第十届全国超临界流体技术学术及应用研讨会暨第三届海峡两岸超临界流体技术研讨会论文集[C],2015.638-647.
[5] Gkountas A A,Stamatelos A M,Kalfas A I. Recuperators Investigation for High Temperature Supercritical Carbon Dioxide Power Generation Cycles[J]. Applied Thermal Engineering,2017,125.
[6] L. Coco-Enríquez,J. Muňoz-Antón,J.M. Martínez-Val. New Text Comparison Between CO2 and Other Supercritical Working Fluids (Ethane,Xe,CH4 and N2) in Line-Focusing Solar Power Plants with Supercritical Brayton Power Cycles[J]. International Journal of Hydrogen Energy,2017,42(28):17611-17631.
[7] Wright S A,Pickard P S,Fuller R,et al. Supercritical CO2 Brayton Cycle Power Generation Development Program and Initial Test Results[C]. ASME 2009 Power Conference, 2009,(4):573-583.
[8] Wright S A, Convoy T M, Parma E J, et al. Summary of the Sandia Supercritical CO2 Development Program[R]. SAND2011-3375C 470193, SCO2 Power Cycle Symposium:Boulder, Colorado, 2011.
[9] 廖吉香,刘兴业,郑群,张海. 超临界CO2发电循环特性分析[J]. 热能动力工程,2016,31(5):40-46.
[10] 黄潇立,王俊峰,臧金光. 超临界二氧化碳布雷顿循环热力学特性研究[J]. 核动力工程,2016,37(3):34-38.
[11] Zhang X R,Yamaguchi H,Fujima K,et al. Theoretical Analysis of a Thermodynamic Cycle for Power and Heat Production Using Supercritical Carbon Dioxide[J]. Energy,2007,32(4):591-599.
[12] Sarkar J. Second Law Analysis of Supercritical CO2,Recompression Brayton Cycle[J]. Energy,2009,34(9):1172-1178.
[13] Sarkar J,Bhattacharyya S. Optimization of Recompression S-CO2 Power Cycle with Reheating[J]. Energy Conversion & Management,2009,50(8):1939-1945.
[14] 张一帆,王生鹏,刘文娟,等. 超临界二氧化碳再压缩再热火力发电系统关键参数的研究[J]. 动力工程学报,2016,36(10):827-833,852.
[15] 郭嘉琪,王坤,朱含慧,等. 超临界CO2及其混合工质布雷顿循环热力学分析[J]. 工程热物理学报,2017,38(4):695-702.
[16] 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),2015,54(5):608-613.
[17] 黄潇立,王俊峰,臧金光. 超临界二氧化碳布雷顿循环热力学特性研究[J]. 核动力工程,2016,37(3):34-38.
[2] Li M J,Zhu H H,Guo J Q,et al. The Development Technology and Applications of Supercritical CO2,Power Cycle in Nuclear Energy,Solar Energy and Other Energy Industries[J]. Applied Thermal Engineering,2017,126:255-275.
[3] 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):1489-1494.
[4] 杨胜仲,郭子祯,陈昌本,等. 超临界CO2热发电系统研究现况分析[A]. 第十届全国超临界流体技术学术及应用研讨会暨第三届海峡两岸超临界流体技术研讨会论文集[C],2015.638-647.
[5] Gkountas A A,Stamatelos A M,Kalfas A I. Recuperators Investigation for High Temperature Supercritical Carbon Dioxide Power Generation Cycles[J]. Applied Thermal Engineering,2017,125.
[6] L. Coco-Enríquez,J. Muňoz-Antón,J.M. Martínez-Val. New Text Comparison Between CO2 and Other Supercritical Working Fluids (Ethane,Xe,CH4 and N2) in Line-Focusing Solar Power Plants with Supercritical Brayton Power Cycles[J]. International Journal of Hydrogen Energy,2017,42(28):17611-17631.
[7] Wright S A,Pickard P S,Fuller R,et al. Supercritical CO2 Brayton Cycle Power Generation Development Program and Initial Test Results[C]. ASME 2009 Power Conference, 2009,(4):573-583.
[8] Wright S A, Convoy T M, Parma E J, et al. Summary of the Sandia Supercritical CO2 Development Program[R]. SAND2011-3375C 470193, SCO2 Power Cycle Symposium:Boulder, Colorado, 2011.
[9] 廖吉香,刘兴业,郑群,张海. 超临界CO2发电循环特性分析[J]. 热能动力工程,2016,31(5):40-46.
[10] 黄潇立,王俊峰,臧金光. 超临界二氧化碳布雷顿循环热力学特性研究[J]. 核动力工程,2016,37(3):34-38.
[11] Zhang X R,Yamaguchi H,Fujima K,et al. Theoretical Analysis of a Thermodynamic Cycle for Power and Heat Production Using Supercritical Carbon Dioxide[J]. Energy,2007,32(4):591-599.
[12] Sarkar J. Second Law Analysis of Supercritical CO2,Recompression Brayton Cycle[J]. Energy,2009,34(9):1172-1178.
[13] Sarkar J,Bhattacharyya S. Optimization of Recompression S-CO2 Power Cycle with Reheating[J]. Energy Conversion & Management,2009,50(8):1939-1945.
[14] 张一帆,王生鹏,刘文娟,等. 超临界二氧化碳再压缩再热火力发电系统关键参数的研究[J]. 动力工程学报,2016,36(10):827-833,852.
[15] 郭嘉琪,王坤,朱含慧,等. 超临界CO2及其混合工质布雷顿循环热力学分析[J]. 工程热物理学报,2017,38(4):695-702.
[16] 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),2015,54(5):608-613.
[17] 黄潇立,王俊峰,臧金光. 超临界二氧化碳布雷顿循环热力学特性研究[J]. 核动力工程,2016,37(3):34-38.