Comparison of cleaning of toothpaste from surfaces and pilot scale pipework
Comparison of cleaning of toothpaste from surfaces and pilot scale pipework
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DOI：
10.1016/j.fbp.2010.08.008
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发表时间：
2010-12-01
影响因子：
4.6
通讯作者：
Fryer, Peter J.
中科院分区：
文献类型：
--
作者：
Cole, Pamela A.;Asteriadou, Konstantia;Fryer, Peter J.
对牙膏的清洗进行了两种长尺的实验研究。在水平流槽中进行了实验室规模的污垢清洗研究。在中试规模上，用温度、电导率和浊度探头对完全污垢管道的清洗进行了研究和监测。从管道中去除分为两个步骤：核心去除，留下薄壁层，然后通过薄膜去除来去除，这花费了大部分清洁时间。在两种刻度下，清洗时间都受清洗液的温度和速度的影响。所研究的管道长度范围为0.3-2米，似乎对清洗时间没有显著影响。清洗时间与(剪切应力)(-1)有很好的相关性。定义了无量纲清洗时间，建立了清洗时间与雷诺数的关系式。(C)2010年化学工程师学会。爱思唯尔出版，版权所有。
Experiments have been conducted to study the cleaning of toothpaste at two length scales. Laboratory scale cleaning studies have been conducted on fouled coupons in a horizontal flow cell. At pilot scale, the cleaning of fully fouled pipes has been studied and monitored by temperature, conductivity and turbidity probes. Removal from the pipe occurs in two steps: core removal, leaving a thin wall layer that is then removed by thin film removal that takes the majority of the cleaning time. At both scales, cleaning time is influenced by temperature and velocity of the cleaning fluid. The pipe length range studied, 0.3-2 m, does not appear to have a significant impact on cleaning time. Cleaning time correlates well with (shear stress)(-1). A dimensionless cleaning time is defined and a correlation between cleaning time and Reynolds number developed. (C) 2010 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.