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Aquashine carwash, a family-run business centered in Wyoming, Ontario is suffering the problems caused by “Weeping water” during winter times. One property of water is that it is one of the few known substances that expand when it freezes. When housed in any form of container, this expansion can generate enough force to break the container. In the case of hoses, the end result is a burst hose that is incapable of doing its duty. This is of great concern in the carwash industry. In self-serve carwashes, hoses extend from the ceiling to wands that customers use to wash their vehicles. These sections of hose are not in a heated environment and are prone to freezing during cold month, causing large amounts of damage and making the bay inoperable. To resolve this, carwashes continuously drain water through the hose when it is cold in a process called weeping. Just, like it is harder to freeze a flowing river, the moving water in the hose is harder to freeze. However, this method of freeze protection has a number of major problems.
Timothy Spikens, a student from University of Waterloo, was intended to design a method that could protect the washing pipes from freezing.
Figure 1 – A fractured pipe showing the damage possible from freezing water
Enhanced knowledge of fluid mechanics and thermodynamics.
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Contact Waterloo Cases in Design Engineering
Steve Lambert
Tel: (519) 888-4728
Email: steve@uwaterloo.ca
The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is co-ordinated within the Office of Indigenous Relations.