摘要
基于复合制冷循环间接空冷(简称复间冷)系统的结构形式和传热过程,针对复间冷系统制冷循环,建立换热过程计算模型,并进行汽轮机排汽耦合制冷循环的动态模拟正交实验.结果表明:制冷循环运行约500s后,排汽温度趋于稳态工况,随着排汽热负荷的增加、环境气温的升高以及迎面风速的减小,排汽温度升高,实验结果与600 MW机组的模拟计算结果一致.
Based on the structure pattern and heat-transfer process of an indirect air-cooling system with compound refrigeration cycle （CRC-IAC）, a calculation model was established for the heat-transfer process, and an orthogonal experiment was subsequently carried out on a dynamic simulation of refrigeration cycle coupled with exhaust steam. Results show that the exhaust temperture tends to be stable after the refrigeration cycle runs about 500 s, which increases with the rise of exhaust heat load and ambient air temperature, and with the reduction of face velocity. The experimental data are consistent with the simulation results of a 600 MW unit.
出处
《动力工程学报》
CAS
CSCD
北大核心
2017年第1期73-78,共6页
Journal of Chinese Society of Power Engineering
基金
国家自然科学基金资助项目(51376042)
吉林市科技创新发展计划资助项目(20156403)
东北电力大学博士科研启动基金资助项目(BSJXM-201415)
关键词
复间冷系统
制冷循环
排汽温度
正交实验
动态模拟实验
CRC-IAC system
refrigeration cycle
exhaust temperature
orthogonal design
dynamic simu-lation experiment
