There's more in the shed!

So this is what is left after loading my collection/settling tank and processing 24.5 gallons of WVO. There was at least 12 more in the shed but then my friend shows up with 12 more cubes of oil! OH SNAP!

Saw Dust/Wood Chip Filtering

So here's a photo with an example of the results of using maple sawdust & wood chips to filter settled biodiesel. Notice that you can see through the filtered flask. Going ahead with filtering this latest 24.5 gallons with saw dust. Results look very promising!

After some thinking and searching for a possible solution to my pump upgrade I stumbled upon the discussion and use of eductors as a way of increasing the mixing efficiency of large volumes of liquid with existing small pumps. The basic concept is that the liquid is pumped through a smaller orifice, thus creating a high pressure stream, which is shot down the center of a surrounding shroud. The back of the shroud is open allowing for the high pressure stream to create a vacuum. The eductor(s) would be submerged in the bio mix nearly reaching the bottom. Some have designs where the place one at the bottom and one at the near the top.

The eductor has the ability of increasing the mixing capabilities to 3-5 times that of the liquid being pumped. So if this is correct my 5gpm pump would be turned into something like 15-25gpm! Looks like fish pet stores sell them.

Jerry Rig II Update

Jerry Rig II processed 24.5 gallons successfully! Only minor issue was a small leak at the water heater element area. I figured if there were any leaks this would be where it would be, due to a mistake on my part on cutting a hole just a touch to big. I built the processor to low and will have to attach a longer drain hose in order to get good drainage of waste by-product. Also will need to get more powerful pump if I want to process 35-40 gallons.

Will also need to install a second water heater element if I want to preheat the oil faster in the processor. I might look at using the turkey frier to preheat like 5 gallons to 200-300 to help jump start and take a load off of the water heater element. Using the turkey frier I can get those temps in like 20 minutes. But I may go to the second water element in order to prepare for methanol recovery using the same processor, might save this for the spring/summer.

Also revisited testing using sawdust/wood shavings and filtering medium and it seems to work really well! I have friend that gave me some maple sawdust/shavings mixture and it worked great. I'm planning on loading up one of my PVC resin towers with this and test on this batch. Letting the methanol evaporate off as much as possible in order to extend the life of the sawdust and to limit the fire hazard as much as possible. Most likely get to that tomorrow and I'll post report and pictures.

IT'S DONE! Jerry Rig II is done and ready for it's maiden voyage today. Here's a video I posted on YouTube with an overview of the new processor.

Spent part of the morning re-working the 3/4" pipe to connect the WVO collection tank to the processor. Looks like I'll be able to reuse 100% of the pipe and parts from the previous system. I will have to get more parts to create a new method to use multiple injection streams into the processor. Instead of just one stream to mix/agitate I'm designing a system using 4 streams/ports. I'll post pictures or schematic later this weekend.

FINALLY! I've got the Jerry Rig II setup just about ready. I know, I know....it's taken me long enough it's been tough with family and work responsibilities but I'm just about there. Here are some pictures to show the progress.

From Jerry Rig Biodiesel Processor Updates

From Jerry Rig Biodiesel Processor Updates

From Jerry Rig Biodiesel Processor Updates

Yet another update

While waiting for the battery on my riding mower to charge, I decided to begin disassembling Jerry Rig I. Let's all take a moment of silence to honor and recognize all the biodiesel Jerry Rig I created...........ok that's enough.



As you can see by these photos that using the 16 gallon drum was VERY simple. I can say without a doubt had I been driving less than 500 miles a week I would have been still using Jerry Rig I to produce my biodiesel. This is a great size to begin with and easy/inexpensive to build. It also didn't require a whole lot of space to setup either. I've offered up the processor to a group of VW TDI owners to adopt. Lets see what happens.

Progress

Since my last post I've made some progress and should have Jerry Rig II up by mid week. I've finally plumbed the bottom for my WVO collection tank and ready to put it in place. For those going with a stand pipe design you can go to Lowe's and have them add threading to pipe in order for there to be enough thread that comes out of the bottom to attach to needed pipe to connect to system.

Finally found some washers to seal up the hole I slightly made a smidge to big for the electric water heater element.

Measure twice, cut once....DOH!

Well, I was delayed in getting Jerry Rig II up and running due to a dumb mistake in measurement. I was in the process of cutting a hole to mount the water heater element and upon inserting the element I realized I cut the hole just a smidge to big. Rather than using the inner diameter of the fitting I used the outer diameter. DOH! Being so busy with work and family I haven't had a chance to find a gasket and washer to try and fix my error. But in the mean time I've processed yet another 30+ gallons with Jerry Rig I.

I also had another minor set back in that both of my resin towers had a malfunction. Due to the weight of the resin and biodiesel in the towers they screens began sagging and came loose on one side thus allowing the resin to flow out. Due to the design I followed there's no easy way of repairing the screens as they are glued in. The design should have included some type of support structure to hold up the screens under load. I'm in the process of redesigning and modifying the design to allow for repairs and access to the screens. Here's a diagram of my idea.