Table of Contents
The initial design is as follows:
This design implements a filtration system which consists of a sand filter coupled with a bag filter. A stainless steel tube remains open on the top so that the bulb can be recessed into it, and the whole tube is enclosed in a wooden box to prevent any UV light leakage. The device makes use of a "safety switch" so that the water valve cannot be opened if the bulb is not first switched on. The magnetic ballast and starter of the previous design were replaced by one single ballast with starter included.
The bill of materials was developed alongside the product design, and the total cost for one tube was determined to be approximately $126. This can be found below:
System DiagramsSystem Layout_1 (dwg 0)
Detailed DrawingsThe following drawings include critical dimensions for any modified parts.
Wooden frame parts
Electrical DiagramsThe following wiring diagrams_1 are schematic representations of the two possible power setups. One is the baseline AC setup which will draw power from the grid. The second is a solar panel and battery setup to run the UV bulb.
At a design review on February 16, 2007, the design was discussed and reviewed by the design team, Dr. Jim Taylor, Dr. Brian Thorn, and Dr. Andres Carrano. The following list of issues was developed, and their subsequent resolutions are listed below: