I just cap it all. PHD. (Piled Higher and Deeper)
bp
<part15sbs{at}gmail{dot}com>
On 5/22/2023 10:33 AM, Chuck McCown via AF wrote:
PhD I always get the cases wrong.
Similar to kWh but that one I remember.
*From:* Chuck McCown via AF
*Sent:* Monday, May 22, 2023 10:59 AM
*To:* AnimalFarm Microwave Users Group
*Cc:* ch...@go-mtc.com
*Subject:* Re: [AFMUG] Air vac
I know two venturies in series will increase the air flow, and airflow
is the name of the game. Got get the spoils moving fast.
I have come to learn that suction/vacuum is analogous to voltage and
CFM is like current and CFM X vacuum = a units called airwatts.
That is the energy in the air stream and that is what you want to
maximize. Orifices and restrictions are like resistance and you can
actually use the ohms law ratio to calculate this stuff.
So more PSI into a venturi does not create more airwatts as each
venturi has an optimal pressure and flow. I am studying this exact
issue with some German pHds that wrote a white paper on these things.
I think I have a call with them tomorrow.
*From:* Steve Jones
*Sent:* Monday, May 22, 2023 9:34 AM
*To:* AnimalFarm Microwave Users Group
*Subject:* Re: [AFMUG] Air vac
I use an auger to dig them, vac to clear them. Same thing with the
airspade/airvac combo. I dont do posts less than 48 inches. Whats
really pushing this is the last project was installing 2 inch duct for
the power company, the old primaries were failed concentric, as it
turns out the stuff is dangerous, it faults on its own, jabbing
shovels and post hole diggers at it is a recipe for disaster and water
is its mortal enemy. Im chasing more contracts with that power company
to replace more of that concentric. Im not gonna get the cutting power
of water, but ill have dry spoils to put back in the hole.
I wish I hadnt done all the drugs, id be able to understand the maths
on this, im wondering if I cant split the input and double the lift
with two venturis
On Mon, May 22, 2023 at 9:23 AM <dmmoff...@gmail.com> wrote:
So you dug post holes with a shop vac? Is it sandy where you
are? I feel like I hit about 10,000 rocks per post hole. Many
too big for a vac hose, and many just big enough to clog it.
I might have to try it anyway.
*From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Steve Jones
*Sent:* Sunday, May 21, 2023 6:12 PM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
*Subject:* Re: [AFMUG] Air vac
I'm having better luck with the prototype than a shop vac already,
just trying to improve the lift. Toting a generator isnt really an
option.
I also just have a shop vac hose, if theres moisture the dirt
collects on the sides with a shop vac and loses lift. That's how
I've always dug post holes.
On Sun, May 21, 2023, 3:53 PM Chuck McCown via AF
<af@af.afmug.com> wrote:
I think you would have better luck with a strong shop vac and
a 30 gallon drum. I have seen guys do that and it worked OK.
Air powered vacuum producers work but I don’t know how well.
Sometimes they are called eductors or ejectors.
Take a look at this one:
https://www.globalindustrial.com/p/2-in-line-vac-only-aluminum?infoParam.campaignId=T9F&gclid=CjwKCAjwgqejBhBAEiwAuWHioM68tuz0PVLcvHFy4CRspRtvhy5gEQQryMrUkOoNv4MVeUTRSWTkvxoCrv8QAvD_BwE
<https://www.globalindustrial.com/p/2-in-line-vac-only-aluminum?infoParam.campaignId=T9F&gclid=CjwKCAjwgqejBhBAEiwAuWHioM68tuz0PVLcvHFy4CRspRtvhy5gEQQryMrUkOoNv4MVeUTRSWTkvxoCrv8QAvD_BwE>
Best Regards,
Chuck McCown
McCown Technology Corporation
8401 N Commerce Dr
Lake Point, Utah 84074
801-250-9503 Office
435-830-4306 Cell
www.mccowntech.com <http://www.mccowntech.com>
www.microtrench.pro <http://www.microtrench.pro>
www.terabitnetworks.com <http://www.terabitnetworks.com>
*From:*Steve Jones
*Sent:*Sunday, May 21, 2023 11:56 AM
*To:*AnimalFarm Microwave Users Group
*Subject:*[AFMUG] Air vac
I need advice from you nerds.
I'm a broke joke, so hydrovac isnt in my budget. Besides, I
want dry spoils to put back in the hole.
This revision works for venturi. I have multiple size reducer
but right now I'm just doing 3/4 to to inch. The 3/4 to 1 then
1 to half back to 1.5 for the venturi side seemed to have the
best lift, but the hardware store didnt have everything, so
it's all in 2 inch right now
I'll dump to a 2000lb peanut sack if I can find one, but for
now I'll just use a 30 gallon drum and dump on the mega movers.
This is for use in conjunction with the airspade I did have
some coin to get.
Venturi math gets complicated and I'm full retard so I need to
find he best ways to increase negative pressure and where to
drill the ports.
I also wonder if theres an option to recapture the exhaust
into the airspade.
I need you nerds to go full geek.
If I can get valves correct I'll have the local machinist make
me a couple that are pressure rated.
This is to mimic the airvac I also cant afford.
This proof of concept has the lift to clear potholes and
handholes, but I need to clean it up and get more efficiency.
A side discovery is that this setup is perfect for blowing
straw and seed with glue
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