Interaction between particulate fouling and precipitation fouling: Sticking probability and deposit bond strength
Interaction between particulate fouling and precipitation fouling: Sticking probability and deposit bond strength
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颗粒污垢和沉淀污垢之间的相互作用：粘附概率和沉积物粘合强度
DOI：
10.1016/j.ijheatmasstransfer.2019.118700
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发表时间：
2019-12
影响因子：
5.2
通讯作者：
Park Benjamin
中科院分区：
文献类型：
--
作者：
Wang Yuan;Shen Chao;Tang Zhenbo;Yao Yang;Wang Xinlei;Park Benjamin
粘着概率(P)和镀层粘结强度（ξ）是决定结垢过程的两个最重要的因素，但在现有模型中没有发现pandξ的计算相关性。本研究基于pandξ值研究了颗粒结垢与沉淀结垢之间的相互作用，并考虑了颗粒结垢与沉淀结垢结合在换热管微表面的生长特征。在三个单独的测试中，每一个都在720 h内连续测量三种污染：颗粒污染、沉淀污染和组合污染。为了认识传热表面结垢的生长机理，解决工程问题，本研究提供了一种可靠的pandξ计算方法。结果表明，CaCO3与SiO2颗粒以1:1的质量比（CaCO3:SiO2）混合溶液可提高粘接率。与普通管相比，启动次数为45和10的螺旋脊管不易粘附，且不易被流动剥蚀，降低了粘附概率，提高了沉积键合强度。对于起始数为45的螺旋脊管，与起始数为10的螺旋脊管相比，颗粒更容易粘附在表面，但更不易发生沉淀结垢。结果表明，在起始数为45的螺旋脊管表面，颗粒结垢或沉淀结垢一旦形成，沉积物难以清除。
Sticking probability (P) and deposit bond strength (ξ) are the two most important factors that determine the fouling process, but no calculation correlations were found forPandξin current models. This study investigated the interaction between particulate fouling and precipitation fouling based on the values ofPandξ, taking into account the growth characteristics of the combination of particulate fouling and precipitation fouling on the micro-surface of the heat transfer tube. Three kinds of fouling were measured continuously over 720 h in each of three individual tests: particulate fouling, precipitation fouling, and the combined fouling. In order to recognize the growth mechanism of the combined fouling on the heat transfer surface and to solve the engineering problems, this study provides a reliable method to calculatedPandξ. The results indicated that the solution of CaCO3mixed with the particles of SiO2at the mass ratio of 1:1 (CaCO3:SiO2) improved sticking probability. And the enhanced tubes, the helical ridge tube with start-number of 45 and start-number of 10, compared with the plain tube, would not easily stick, but hardly denude by flow which reduced the sticking probability and increased the deposit bond strength. For the helical ridge tube with start-number of 45, when compared with the helical ridge tube with start-number of 10, the particles were more likely to stick to the surface of, but the precipitation fouling was harder to occur. It was observed that deposits were difficult to remove once they were deposited by the particulate fouling or precipitation fouling on the surface of the helical ridge tube with start-number of 45.
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影响因子：
5.2
作者：
Kim Nae-Hyun;R. Webb
通讯作者：
Kim Nae-Hyun;R. Webb
DOI：
10.1016/j.icheatmasstransfer.2018.12.014
发表时间：
2019-02
影响因子：
7
作者：
Zhiming Xu;Z. Han;Jingtao Wang;Yanfeng Li
通讯作者：
Zhiming Xu;Z. Han;Jingtao Wang;Yanfeng Li
基于冯卡门类比对螺旋肋管中的冷却塔污垢进行建模
DOI：
10.1016/j.ijheatmasstransfer.2010.02.034
发表时间：
2010-06
影响因子：
5.2
作者：
Li, Wei;Li, Guanqiu
通讯作者：
Li, Guanqiu
影响因子：
2.2
作者：
Ning Zhang;Xin Wei;Qirong Yang;Nan-nan Li;Erren Yao
通讯作者：
Ning Zhang;Xin Wei;Qirong Yang;Nan-nan Li;Erren Yao
影响因子：
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作者：
L. Cremaschi;J. Spitler;Ellisa Lim;A. Ramesh
通讯作者：
L. Cremaschi;J. Spitler;Ellisa Lim;A. Ramesh