Numerical modelling of a straw-fired grate boiler

被引：105
|
作者：
Kær, SK [1 ]
机构：
[1] Univ Aalborg, Inst Energy Technol, DK-9220 Aalborg O, Denmark
来源：
FUEL | 2004年 / 83卷 / 09期
关键词：
grate-fired boilers; biomass; computational fluid dynamics; mixing problems;
D O I：
10.1016/j.fuel.2003.12.003
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The paper presents a computational fluid dynamics (CFD) analysis of a 33 MW straw-fired grate boiler. Combustion on the grate plays a key-role in the analysis of these boilers and in this work a stand-alone code was used to provide inlet conditions for the CFD analysis. Model predictions were compared with available gas temperature and species concentration measurements showing good agreement. Combustion of biomass in grate-based boilers is often associated with high emission levels and relatively high amounts of unburnt carbon in the fly ash. Based on the CFD analysis, it is suggested that poor mixing in the furnace is a key issue leading to these problems. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1183 / 1190
页数：8
相关论文
共 50 条
  • [21] Numerical modelling of the co-firing of pulverised coal and straw in a 300 MWe tangentially fired boiler
    Gubba, S. R.
    Ingham, D. B.
    Larsen, K. J.
    Ma, L.
    Pourkashanian, M.
    Tan, H. Z.
    Williams, A.
    Zhou, H.
    FUEL PROCESSING TECHNOLOGY, 2012, 104 : 181 - 188
  • [22] A numerical investigation of NOx concentration at the outlet of a coal-fired chain grate boiler
    Guo, Xinwei
    Fan, Junjie
    Bai, Hao
    Zhang, Zhongxiao
    Bi, Degui
    Dong, Jiancong
    Zhang, Jian
    Zhu, Zhixiang
    Zhang, Jian
    Yu, Juan
    ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, 2024, 46 (01) : 1448 - 1457
  • [23] Characterizing and modeling of an 88 MW grate-fired boiler burning wheat straw: Experience and lessons
    Yin, Chungen
    Rosendahl, Lasse
    Clausen, Sonnik
    Hvid, Soren L.
    ENERGY, 2012, 41 (01) : 473 - 482
  • [24] The transportation and transformation of alkali metals in straw-fired CFB boilers
    Qin, Jianguang
    Yu, Chunjiang
    Li, Shuangjiang
    Ma, Xiaoqin
    Wang, Qinhui
    Fang, Mengxiang
    Luo, Zhongyang
    Taiyangneng Xuebao/Acta Energiae Solaris Sinica, 2009, 30 (05): : 667 - 672
  • [25] COMPREHENSIVE ANALYSIS OF A STRAW-FIRED POWER PLANT IN THE PROVINCE OF VOJVODINA
    Urosevic, Dragan M.
    Gvozdenac-Urosevic, Branka D.
    THERMAL SCIENCE, 2012, 16 : S97 - S106
  • [26] Air manifolds for straw-fired batch boilers - Experimental and numerical methods for improvement of selected operation parameters
    Szubel, Mateusz
    Filipowicz, Mariusz
    Matras, Beata
    Podlasek, Szymon
    ENERGY, 2018, 162 : 1003 - 1015
  • [27] Modelling of a Batch-Fired Straw Boiler for Control of the Combustion Chamber Temperature
    Kreft, Wojciech
    2017 22ND INTERNATIONAL CONFERENCE ON METHODS AND MODELS IN AUTOMATION AND ROBOTICS (MMAR), 2017, : 494 - 497
  • [28] Biomass fired grate boiler for small industrial heating system
    Wiriyaumpaiwong, Songchai
    Jamradloedluk, Jindaporn
    PROCEEDINGS OF ISES SOLAR WORLD CONGRESS 2007: SOLAR ENERGY AND HUMAN SETTLEMENT, VOLS I-V, 2007, : 2422 - 2425
  • [29] Numerical simulation of SNCR (selective non-catalytic reduction) process in coal fired grate boiler
    Modlinski, Norbert
    ENERGY, 2015, 92 : 67 - 76
  • [30] Modelling and experiments of straw combustion in a grate furnace
    van der Lans, RP
    Pedersen, LT
    Jensen, A
    Glarborg, P
    Dam-Johansen, K
    BIOMASS & BIOENERGY, 2000, 19 (03): : 199 - 208
12345