WVO Final Report B.pdf
The main requirement of the project was to implement an easy to use control system for
the processor. First, the control system needed to control the filtering system with the flip of a
switch. This means this one switch would turn on the 12 volt pump, controlling the coolant loop,
and the 24 volt scooter motor, controlling the WVO loop. The control system also needed to
decide when to run the WVO loop which was dependent on the temperature of the coolant
entering the coil of the WVO barrel. Finally the control system needed to shut the system off
when the process was complete.
Along with the control system, the project hardware needed to be brought up to code.
Therefore, all the existing piping needed to be ripped out. The ¾ inch PVC, used for the coolant
loop, that ran from the solar thermal array to the shed was to be replaced by ½ inch PVC. The
flex cable used in the WVO loop that was placed outside of the shed was to replaced with ½ inch
hard copper pipe. Then, the ½ inch PVC and copper piping was to enter through the window of
the shed. Once the piping was inside the shed, flexible pipes could be implemented.
Finally, the system was to be controlled using four batteries wired up to be a 24 volt
First, we ripped out all the existing piping. Then, we connected ½ pvc to the solar thermal
array using two brass fittings and two PVC connectors. Making only 90 degree angles we
connected all the PVC, using primer and glue for all
connections, for the up and down coolant loop on the roof.
We proceeded to feed the PVC through the window at a
90 degree angle, this was only possible with ½ inch
piping, anything larger would not have fit through the
window. Then, we
connected the pushing
coolant loop directly to the
12 volt pump with all ½
inch PVC pipe, no flex
tubing. On the bottom end
of the pump, we connected flex tubing which was placed in the
coolant reservoir. The falling coolant loop was hard piped to near
the 12 volt pump. From there we switched to the coolant flex pipe
which was connected the copper coil inside of the barrel. At the