Numerical investigation of design parameters for optimization of the in-situ ultrasonic fouling removal technique for pipelines.
Numerical investigation of design parameters for optimization of the in-situ ultrasonic fouling removal technique for pipelines.
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DOI：
10.1016/j.ultsonch.2019.03.027
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发表时间：
2019-09
影响因子：
8.4
通讯作者：
H. Lais;P. S. Lowe;T. Gan;L. Wrobel
中科院分区：
文献类型：
--
作者：
H. Lais;P. S. Lowe;T. Gan;L. Wrobel
工程设备中的污垢积累是一个已知的问题，并且作为一种解决方案，功率超声波用于原位污垢去除的应用得到了业界的广泛关注。目前最先进的污垢去除包括使用水力、化学和手动技术。已经进行了大量的研究，以提高对超声波在不同污垢应用中的潜在用途的认识，主要是在反渗透膜和热交换器中。然而，原位超声污垢去除的优化尚未被研究，仍处于起步阶段。本研究使用先前实验验证的数值模型进行参数研究，以优化技术。重点介绍了超声波在大口径管道中的应用。因此，本研究是在6英寸。附表40-碳钢管。研究的参数包括：从单个换能器位置去除长管道中污垢的最佳换能器数量;高温下的性能;不同的流体域;最佳电压;各种输入信号和污垢的增量厚度。根据特定的研究条件，在6 in. 40号碳钢管。
Fouling build-up in engineering assets is a known problem and, as a solution, the application of power ultrasonic for in-situ fouling removal has gained much attention from the industry. Current state-of-the-art fouling removal includes the use of hydraulic, chemical and manual techniques. Much research has been conducted to advance the knowledge on the potential uses of ultrasonics across different fouling applications, primarily in reverse osmosis membranes and heat exchangers. However, the optimization of in-situ ultrasonic fouling removal has not yet been investigated and is still in its infancy. The present study uses a previously experimentally-validated numerical model to conduct a parametric study in order to optimize the technique. Focus was given to the adoption of ultrasonics for large diameter pipes. Therefore, this investigation was conducted on a 6 in. schedule 40-carbon steel pipe. Parameters investigated include: optimum number of transducers to remove fouling in long pipes from a single transducer location; performance at elevated temperature; different fluid domains; optimum voltage; variety of input signals and incremental thickness of fouling. Depending on the particular studied conditions, the possible fouling removal of up to +/−3 m from a single transducer location is demonstrated in a 6 in. schedule 40 carbon steel pipe.