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Organosilicon and Titanium Oxide Coatings for Mitigation of CaCO_3 Depositions

机译:减少CaCO_3沉积的有机硅和二氧化钛涂层

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摘要

Fouling reduces the thermal efficiency of heat transfer units, and it causes economic losses and has a marked effect on CO_2 releases and thus on climate change. In order to improve the energy efficiency, deposition formation (precipitation and crystallization) onto the heat transfer surfaces is going to be mitigated. A way to achieve this goal is the development of new surface materials with controlled chemical composition and morphology. In this study, formation mechanism of CaCO_3 depositions was investigated on modified (-CH_3 and -COOH) organosilicon (SiOC), and anatase and rutile TiO_2 surfaces. The results were compared to those of stainless steel surfaces. Based on the molecular modeling results, anatase and-COOH functionalized SiOC coatings are promising materials for mitigation of fouling caused by CaCO_3.
机译:结垢会降低传热单元的热效率,并造成经济损失,并对CO_2的释放并因此对气候变化产生显着影响。为了提高能量效率,将减少在传热表面上的沉积形成(沉淀和结晶)。实现此目标的一种方法是开发具有可控化学成分和形态的新型表面材料。在这项研究中,研究了在改性的(-CH_3和-COOH)有机硅(SiOC)以及锐钛矿和金红石TiO_2表面上CaCO_3沉积的形成机理。将结果与不锈钢表面的结果进行比较。基于分子建模结果,锐钛矿和-COOH功能化的SiOC涂层是减轻CaCO_3引起的结垢的有前途的材料。

著录项

  • 来源
    《Heat Transfer Engineering》 |2015年第8期|721-730|共10页
  • 作者

    EINI PUHAKKA; ELODIE LECOQ;

  • 作者单位

    VTT Technical Research Centre of Finland, Espoo, Finland VTT Technical Research Centre of Finland, PO Box 1000, FI-02044 VTT, Finland;

    Department Science and Analyse of Materials, Centre de Recherche Public-Gabriel Lippmann, Belvaux, Luxembourg;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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