Journal
APPLIED THERMAL ENGINEERING
Volume 184, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2020.116271
Keywords
Heat transfer; Crystallization fouling; Potable water; Aluminium; Magnesium; Calcium carbonate
Funding
- Leeds University SALSAS consortium
- Leverhulme Trust [ECF-2016-204]
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The study found that the scale formed on surfaces mainly consists of two distinct regions: a smooth and flat layer, and a rough calcium carbonate layer, with copper and aluminum surfaces having a greater scaling tendency. Additionally, the complex effect of flow rate on scale formation was also discussed in the study.
In this work, inorganic fouling of the heat transfer surfaces from potable water has been studied using a once-through flow cell to visualize and follow the deposition processes. The effects of surface material and flow rate on the amount and morphology of deposits have been investigated. The scale which formed on surfaces mainly consists of two distinct regions; smooth and flat layer and a rough calcium carbonate layer. It also revealed that the scaling tendency on copper and aluminium is much greater than on stainless steel. Finally, the complex effect of flow rate on scale formation is also discussed.
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