Thermal Fluid Dynamic Characteristics and Wall Temperature Distribution of a 300MW Supercritical CO2 Boiler

被引：0

作者：

Zhang Y. ^{[1
]}

Wang A. ^{[2
]}

Bai W. ^{[1
]}

Yang Y. ^{[1
]}

Li H. ^{[1
]}

Yao M. ^{[1
]}

Wang Y. ^{[1
]}

机构：

[1] Xi'an Thermal Power Research Institute Co. Ltd., Xi'an, 710054, Shaanxi Province

[2] Guodian Taizhou Power Generation Co., Ltd, Taizhou, 225321, Jiangsu Province

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Boiler; Brayton cycle; Supercritical CO[!sub]2[!/sub; Thermal fluid dynamic; Wall temperature distribution;

D O I：

10.13334/j.0258-8013.pcsee.172589Z

中图分类号：

学科分类号：

摘要：

One of notable features of supercritical CO2 Brayton cycle is that it needs recover a large amount of exhausted heat for achieving higher cycle efficiency, which makes the inlet temperature of primary heat exchanger (boiler) much higher than that of the conventional steam Rankine cycle. Compared with the supercritical steam boiler, the supercritical CO2 boiler owns remarkable features:higher inlet temperature, higher proportion of the reheat quantity, working far from the large specific heat region. Hence, it is necessary to study the thermal fluid dynamic characteristics and wall temperature distribution of supercritical CO2 boiler in depth. Using a 300MW, 600℃ once reheat supercritical CO2 boiler as an illustration, the thermal fluid dynamic characteristics were analyzed in detail in the present paper, according to the numerical simulation and hydrodynamic calculation. Then, the distributions of mass flow rate, working fluid temperature and gas wall temperature were obtained. © 2019 Chin. Soc. for Elec. Eng.

引用

页码：1700 / 1706

页数：6

共 19 条

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