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Title: Mathematical modeling and thermal-hydrodynamic analysis of vertical water wall in a SCFB boiler with annular furnace
Author: Zhang, Wei1; Wang, Huan2; Yan, Kai3; Zhou Tuo(周托)4; Wang, Chang'an1; Chen, Kai1; Che, Defu1
Source: APPLIED THERMAL ENGINEERING
Issued Date: 2016-06-05
Volume: 102, Pages:742-748
Keyword: Annular furnace ; Component-pressure method ; Mass flux ; Connection style ; Metal temperature
DOI: 10.1016/j.applthermaleng.2016.03.160
DOC Type: Article
English Abstract: In this study, a mathematical model for a 660 MW SCFB boiler design with annular furnace was deduced and thermal-hydrodynamic analysis was performed to improve the design and operation of water wall. Based on the water wall structure and heat flux distribution of the SCFB boiler, the connection style, pressure drop, mass flux, metal temperature, and phase transition position in water wall were optimally selected and numerically analyzed. The calculation results show that the minimum deviation of mass flux among water wall presents at connection style 1, in which outer-front wall, outer-left (right) wall, inner front wall, and inner-left (right) wall are connected to the same steam-water separator. The gravitational pressure drop decreases while the frictional pressure drop increases with the rise of fluid temperature. Moreover, vertical upward parallel tubes present positive flow response characteristic with low mass flow rate. The subcooled length and superheated length shrink while the saturated length expands with the reduction of partial loads. (C) 2016 Elsevier Ltd. All rights reserved.
WOS Headings: Science & Technology ; Physical Sciences ; Technology
WOS Subject: Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
WOS Subject Extended: Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
WOS Keyword Plus: MWE CFB BOILER ; HYDRAULIC ANALYSIS ; SIMULATION ; FLUX
Indexed Type: SCI
Funder: Strategic Priority Research Program of Chinese Academy of Sciences(XDA07030100) ; Fundamental Research Funds for the Central Universities(xjj2014041)
Language: 英语
WOS ID: WOS:000379270300077
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112497
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Xi An Jiao Tong Univ, Sch Energy & Power Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
2.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian 710055, Peoples R China
3.Shanghai Boiler Works Co Ltd, Shanghai 200245, Peoples R China
4.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China
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