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Product Development; Water-cleaning Device for the Boat Wash, Miniwash
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Naval Systems.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Produktutveckling; Uppsamlingsanordning Med Redning Till Borstbåttvätten Miniwash (Swedish)
Abstract [en]

Antifouling paints are a big enemy to the marine ecosystem.  Many tons of copper,  zinc  and  other  harmful  substances  are  released  into  the  environment each year, in Sweden alone. 

This study concentrates on the mechanical antifouling method, using boat washes instead, which is a more sustainable alternative. It comes with reduced fuel consumption, increased speed, and moreover, no need for grinding and painting the hull each year. 

As long as paint residues remain on hulls, but the boat washes are used instead of new paint, it is desired to collect what is scraped of the hulls. By collecting paint flakes and particles accumulated in organic material, the environmental impact is reduced further.  The scope of this Master’s thesis is to design a collection device for the portable boat wash Miniwash. 

A collection device with a cleaning system was developed using the pump effect from the brushes along with an extra pump to press the contaminated water through a bag filter taking most of the particles. One can expect as much as 70% of   the   harmful   particles   can   be   taken   care   of,   according   to   the   filter manufacturer, based on given conditions and filter bag pore sizes. By always having a  flow of 8  cubic meters per hour through the cleaning system, it  is assumed  that  not  much  of  the  cleaning  water  will  escape,  not  passing  through The bag filter.

Place, publisher, year, edition, pages
2012. , 97 p.
Trita-AVE, ISSN 1651-7660 ; 2012: 40
National Category
Other Mechanical Engineering
URN: urn:nbn:se:kth:diva-102031OAI: diva2:550414
Subject / course
Naval Systems
Available from: 2012-09-10 Created: 2012-09-07 Last updated: 2012-09-10Bibliographically approved

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