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OK more still behavior for the group to trouble shoot.
The member with the first correct answer will win a $50 credit on their next purchase a free SD tee shirt, and SD hang over kit.
For the Aussie & European guys, I'll cover the credit and also send over the gifts.
Here is a link to the video: SD Still Question @ Vimeo
Password: stilldragonreview
Ready,,,,,go...
StillDragon North America - Your StillDragon® Distributor for North America
Comments
The heater element controller SSR looks to be using PWM with a 4-5 second cycle period and a duty cycle of maybe 30-40%? So, they elements are going full power for like 2 seconds, then shutting down entirely for the remainder of the 5 second period.
Who built the controller?
If that's my neighbor, I could probably head over to fix it.
It's already fixed
StillDragon North America - Your StillDragon® Distributor for North America
Not the power input.
StillDragon North America - Your StillDragon® Distributor for North America
Gonna give a clue here after a bit more input lol
StillDragon North America - Your StillDragon® Distributor for North America
Keep looking
StillDragon North America - Your StillDragon® Distributor for North America
Wild guess: product collector blocked?
Got me, that was my best guess.
Still hates Hootie and the Blowfish? I mean, can you really blame it?
No sir. But I will say that this behavior did telegraph all the way to the parrot and did surge in conjunction with the plate behavior.
StillDragon North America - Your StillDragon® Distributor for North America
New guess: cooling water pressure oscillating?
Good guess. But look deeper. Not the answer btw.
StillDragon North America - Your StillDragon® Distributor for North America
My last try: oscillation caused by putting the dephlegmator and product cooler "in series".
No sir.
Don't give up.
StillDragon North America - Your StillDragon® Distributor for North America
Here is the kettle in use BTW.
StillDragon North America - Your StillDragon® Distributor for North America
I was thinking it looked like it was superheating and then breaking out into the boil like a stainless or glass pot can sometimes on the stove or microwave. Usually solved by including boiling chips.
StillDragon Australia & New Zealand - Your StillDragon® Distributor for Australia & New Zealand
Sir, I'm afraid you are not eligible for the contest. Good input however.
StillDragon North America - Your StillDragon® Distributor for North America
I don't want a prize i just want to guess and guess.
StillDragon Australia & New Zealand - Your StillDragon® Distributor for Australia & New Zealand
Well keep guessing then. Cuz,,,though it was a good good guess,,,,your guess is wrong in this instance.
Nuther clue: simpler than one would think.
StillDragon North America - Your StillDragon® Distributor for North America
My vacuum still sometimes behaves the same way, bumping, I was thinking the same thing as Punkin.
It's caused by momentary changes in pressure that impact the boiling point. Pressure drops, boils fast, pressure rises, boil stops.
Maybe a small vapor leak? Leak in the vacuum breaker?
So my initial thinking was that once I saw the column behavior, the jacket was leaking into the kettle charge. That was not it. Jacket was pressure tested and no leaks. PRV or otherwise.
StillDragon North America - Your StillDragon® Distributor for North America
But grim is on track kinda sorta....
StillDragon North America - Your StillDragon® Distributor for North America
Surging and back-pressure. Looks like what I see when my condenser huffs. Vapor collapses to liquid causing a vacuum (lots of boiling), vapor rushes into fill the space quickly creating a pressure wave that travels back upstream (boiling stops), vapor collapses creating a vacuum (lots of boiling)...
rinse, repeat...
Same pressure wave concept that causes water hammering in plumbing.
Or not.
I'm more like I am now than I was before.
So in this instance, no huffing. But definitely some surging at the parrot.
StillDragon North America - Your StillDragon® Distributor for North America
Cooling water too cold in the defleg?
I'm more like I am now than I was before.
The Russians! shuh
I'm more like I am now than I was before.
No sir. That would not telegraph through all of the plates simultaneously.
StillDragon North America - Your StillDragon® Distributor for North America
Something is causing pressure fluctuations, and I think is due to the cooling side.
I'm more like I am now than I was before.
someone really wants another shirt
StillDragon Australia & New Zealand - Your StillDragon® Distributor for Australia & New Zealand
Nah, just stuck on the computer today doing reports and invoices. I am easily distracted...
I'm more like I am now than I was before.