...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Heat Transfer >Entropy Generation Analysis of a Chemical Absorption Process Where Carbon Dioxide is Absorbed by Falling Monoethanolamine Solution Film
【24h】

Entropy Generation Analysis of a Chemical Absorption Process Where Carbon Dioxide is Absorbed by Falling Monoethanolamine Solution Film

机译：单乙醇胺溶液降落吸收二氧化碳的化学吸收过程的熵产生分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present paper reports a study about entropy generation analysis for the case of chemical absorption of a gas into laminar falling liquid film. The CO_2 absorption into monoethanolamine (MEA) aqueous solutions has been considered. Temperature and concentration expressions are determined by using Laplace transform and used for the entropy generation calculation. The effects of irreversibilities due to heat transfer, mass transfer, viscous effects, coupling effects between heat and mass transfer, and chemical reaction on the total entropy generation of the considered system are derived. The obtained results show that entropy generation is mainly due to chemical reaction irrever-sibility at the gas-liquid interface. Between this interface and the reaction film thickness (where the reaction take place), entropy generation is due to both chemical reaction and mass transfer irreversibilities. More details concerning the contribution of each kind of irreversibility to entropy generation through the falling film are graphically presented and discussed.
机译：本文报道了一种关于气体化学吸收到层状降落液膜中的情况的熵产生分析的研究。已经考虑到CO_2吸收到单乙醇胺（MEA）水溶液中。通过使用拉普拉斯变换确定温度和浓度表达式，并将其用于熵生成计算。推导了由于传热，传质，粘性效应，传热与传质之间的耦合效应以及化学反应对所考虑的系统的总熵产生的不可逆性的影响。所得结果表明，熵的产生主要是由于气-液界面处的化学反应的不稳定性。在该界面和反应膜厚度（发生反应的位置）之间，熵的产生是由于化学反应和传质不可逆性造成的。图形化地展示和讨论了有关各种不可逆性对通过降膜产生熵的贡献的更多细节。

著录项

  • 来源
    《Journal of Heat Transfer》 |2014年第12期|123001.1-123001.10|共10页
  • 作者

    Imen Chermiti; Nejib Hidouri; Ammar Ben Brahim;

  • 作者单位

    Chemical and Process Engineering Department, Applied Thermodynamics Unit, Engineers National School of Gabes, Gabes University, Omar Ibn El Khattab Street, Gabes 6029, Tunisia;

    Chemical and Process Engineering Department, Applied Thermodynamics Unit, Engineers National School of Gabes, Gabes University, Omar Ibn El Khattab Street, Gabes 6029, Tunisia;

    Chemical and Process Engineering Department, Applied Thermodynamics Unit, Engineers National School of Gabes, Gabes University, Omar Ibn El Khattab Street, Gabes 6029, Tunisia;

  • 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

    entropy generation; chemical reaction; falling film; absorber;

    机译：熵产生化学反应;落膜吸收体;

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