粉煤灰碱活化过程的热流模拟

IF 0.2 Q4 ENGINEERING, MULTIDISCIPLINARY
Mauled Yesenia Echeverri-Aguirre, Juan Sebastián Rudas-Flórez, Jarol Esneider Molina-Mosquera, A. A. Hoyos-Montilla
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引用次数: 0

摘要

水泥生产在加强哥伦比亚等发展中国家的基础设施方面发挥着重要作用。然而,这种材料的生产具有高能源成本,并有助于排放大量的二氧化碳。为了解决这些环境问题,探索可以部分或完全替代传统水泥的替代材料至关重要。碱性活化水泥(AAC)已成为这方面的一个有前途的候选材料。因此,有必要了解碱活化的过程和影响它的变量。本研究提出了一种基于现象学的半物理模型,该模型预测了控制碱性活化的一些变量的性能:活化剂浓度(NaOH)、热流和反应程度。模型结果表明,随着活化剂浓度的增加,反应程度也随之增加。此外,与Freisleben-Hansen模型相比,该模型具有准确的响应。采用平方误差积分判据(ISE)进行比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Heat flow modeling in the alkaline activation process of fly ash
Cement production plays an important role in strengthening the infrastructure of growing countries such as Colombia. However, the production of this material has a high energy cost and contributes to the emission of large amounts of CO2.  To address these environmental concerns, it is essential to explore alternative materials that can partially or completely replace traditional cement. Alkaline activated cement (AAC) has emerged as a promising candidate in this regard. Due to this, it is necessary to understand the process of alkaline activation and the variables that influence it. This research proposes a phenomenological-based semi-physical model, which predicts the performance of some variables that control alkaline activation: activator concentration (NaOH), heat flow, and degree of reaction. The model results show that with the increment of the activator concentration, the degree of reaction also increases. Furthermore, the model has an accurate response compared with the Freisleben-Hansen model. The integral square error criterion (ISE) was used in this comparison.
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