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首页> 外文期刊>International Journal of Heat and Mass Transfer >Scale inhibition performance of sodium carboxymethyl cellulose on heat transfer surface at various temperatures: Experiments and molecular dynamics simulation
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Scale inhibition performance of sodium carboxymethyl cellulose on heat transfer surface at various temperatures: Experiments and molecular dynamics simulation

机译：羧甲基纤维素钠在不同温度下在传热表面的阻垢性能：实验和分子动力学模拟

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Sodium carboxymethyl cellulose (SCMC) is one of the most promising scale inhibitors. In this study, the performance of SCMC in inhibiting the deposition of calcium carbonate on heat transfer surface at the temperatures ranging from 293 to 343 K was investigated by experiments, and the interaction between SCMC and calcite in the solution was explored by molecular dynamics simulation. The experimental results showed that the fouling resistance substantially decreases by adding the SCMC. The scale inhibition efficiency increases with the solution temperature, and the highest scale inhibition efficiency at 99.8% at 343 K. The simulated results showed that with the increase of the solution temperature, both the binding energy between SCMC and calcite plane and the probability of SCMC binding with calcium ions increase, which can effectively prevent the growth of calcium carbonate fouling on the heat transfer surface. Therefore, our computational results agree with the anti-scaling experimental phenomena. (C) 2019 Elsevier Ltd. All rights reserved.
机译：羧甲基纤维素钠（SCMC）是最有希望的阻垢剂之一。通过实验研究了SCMC在293-343 K的温度下抑制碳酸钙在传热表面上的沉积的性能，并通过分子动力学模拟研究了SCMC与方解石之间的相互作用。实验结果表明，通过添加SCMC，耐污性显着降低。阻垢效率随溶液温度的增加而增加，在343 K时阻垢效率最高，为99.8％。模拟结果表明，随着溶液温度的升高，SCMC与方解石面的结合能以及SCMC的概率均增大。与钙离子的结合增加，可有效防止碳酸钙在传热表面结垢的增长。因此，我们的计算结果与防垢实验现象相吻合。 （C）2019 Elsevier Ltd.保留所有权利。

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