...
首页> 外文期刊>Fuel >Prediction of biomass ash fusion behaviour by the use of detailed characterisation methods coupled with thermodynamic analysis
【24h】

Prediction of biomass ash fusion behaviour by the use of detailed characterisation methods coupled with thermodynamic analysis

机译:通过使用详细的表征方法和热力学分析来预测生物质灰的熔融行为

获取原文
获取原文并翻译 | 示例
           

摘要

Ash deposition such as slagging and fouling on boiler tube surfaces is an inevitable, though undesirable consequence of burning solid fuels in boilers. The role of fuel characteristics, in affecting the form and severity of the problem, is significant. In recent years, biomass fuels have gained increasing popularity as an environmentally friendly source of energy in power plants all over the world. This study is based on characterising the fusion behaviour of four biomass fuels (pine wood, peanut shells, sunflower stalk and miscanthus) using ash fusion temperature (AFT) tests, simultaneous thermal analysis (STA) of fuel ashes, calculation of empirical indices and predicting ash melting behaviour with the help of thermodynamic equilibrium calculations. The AFT results failed to show any clear trend between fusion temperature and high alkali content of biomass. STA proved useful in predicting the different changes occurring in the ash. Empirical indices predicted high slagging and fouling hazards for nearly all the biomass samples and this was supported by the possible existence of a melt phase at low temperatures as predicted by thermodynamic calculations.
机译:尽管在锅炉中燃烧固体燃料会带来不希望的后果,但在锅炉管表面上的灰烬沉积(如结渣和结垢)是不可避免的。燃料特性在影响问题的形式和严重性方面的作用很重要。近年来,生物质燃料作为一种在世界各地的发电厂中的环境友好的能源而日益普及。这项研究的基础是使用灰分融合温度(AFT)测试,燃料灰分的同时热分析(STA),经验指标的计算和预测来表征四种生物质燃料(松木,花生壳,葵花茎和桔梗)的融合行为。热力学平衡计算的帮助下,灰分熔融行为。 AFT结果未能显示出熔融温度和高生物质碱含量之间的任何明显趋势。事实证明,STA可用于预测灰分中发生的不同变化。经验指数预测几乎所有生物质样品都有很高的结渣和结垢危险,这是由热力学计算预测的在低温下可能存在熔体相支持的。

著录项

  • 来源
    《Fuel》 |2015年第1期|275-284|共10页
  • 作者单位

    School of Chemical and Process Engineering, University of Leeds, UK;

    School of Chemical and Process Engineering, University of Leeds, UK;

    School of Chemical and Process Engineering, University of Leeds, UK;

    School of Chemical and Process Engineering, University of Leeds, UK;

    School of Chemical and Process Engineering, University of Leeds, UK;

    School of Chemical and Process Engineering, University of Leeds, UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ash deposition; Fusion behaviour; Simultaneous thermal analysis; Thermodynamic equilibrium;

    机译:灰分沉积;融合行为;同时进行热分析;热力学平衡;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号