竖直圆柱形水箱保温过程热分层现象与机理研究

• 作者: 左志涛 李文 杨征 王亮 盛勇 谭春青 陈海生
• 来源期刊: 中国电机工程学报
• 学科: 工学
• 关键词: 圆柱形 蓄热水箱 保温过程 热分层现象 机理研究
• 年，卷（期）: 2015,（6）
• 所属期刊栏目: 大电网规划与运行
• 页码范围: 1420-1428
• 页数: 9页
• 分类号: TK01+9
• 字数: 6237字
• 语种: 中文
• DOI: 10.13334/j.0258-8013.pcsee.2015.06.017

摘要

ABSTRACT: This work presented a mechanism study on the thermal stratification of vertical cylindrical heat storage tank in insulation process. The development of the temperature and flow fields with the influence of the thermal insulation layer was specially studied. Every wall was considered as the third boundary condition and the flow was laminar. The experimental and numerical methods were both carried on this study. The numerical method was validated by comparing the experimental and numerical results. The results of this work indicate that: the insulation process of the cylindrical tank can be divided into non-steady state and quasi-steady state. In non-steady state, the flow and thermal change in fluid regime is mainly controlled by side wall and top wall, and the temperature in insulation layer increases gradually from inside to outside at first and then rises overall. In quasi-steady state, two regimes which are called stratification regime and thermal fluid regime are formed in the fluid region and the temperature filed in the insulation layer is relatively steady and drops integrally with time. The highest temperature on the outer wall of the thermal insulation layer can be regarded as a sign of the division of the non-steady state and the quasi-steady state.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	李文	中国科学院工程热物理研究所	179	2992	32.0	43.0
2	王亮	中国科学院工程热物理研究所	127	2555	16.0	49.0
3	陈海生	中国科学院工程热物理研究所	97	1031	16.0	30.0
4	谭春青	中国科学院工程热物理研究所	102	1013	15.0	29.0
5	左志涛	中国科学院工程热物理研究所	18	81	6.0	8.0
6	盛勇	中国科学院工程热物理研究所	4	17	2.0	4.0
7	杨征	中国科学院工程热物理研究所	8	49	4.0	7.0