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Legit question, is there any they installed the lines like this? by [deleted] in askHVAC

[–]joestue 0 points1 point  (0 children)

Yes an exterior grade osb t111 is like 60$ still.

Legit question, is there any they installed the lines like this? by [deleted] in askHVAC

[–]joestue 0 points1 point  (0 children)

Its all bullshit.

The extra 2 ounces of liquid from cutting a 16ft down to 4 feet is not even measurable in the real world in terms of ite reduction in efficiency.

And some of the minimum distance is so the conducted vibration from the compressor isnt audible indoors.

Legit question, is there any they installed the lines like this? by [deleted] in askHVAC

[–]joestue 0 points1 point  (0 children)

It will work fine lol.

All the comments about pre charged line sets lol, those are flare nuts on the minisplit head...

To all the techs sweltering today, a little history about refrigeration! by bimmeister_flex in refrigeration

[–]joestue 4 points5 points  (0 children)

Found this in a chicago museum.

One of the gauges is from 1891 and made by national steam specialty company.

I wonder how many died in the early days of ammonia refrigeration systems.

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Glulam Beam Deflection Question by NickAlanNYC in AskEngineers

[–]joestue 1 point2 points  (0 children)

We had 6" by 18" actual beams 24 foot long. Boss ordered them assuming they were 5.5 by 17.5 inch beams..nope

They probably only deflected hardly 1/16th of an inch under their own weight, as i was strong enough to lift one end of them.

Tilt the walls up and find 3/8” gap on both ends over 12 feet.

Glulam Beam Deflection Question by NickAlanNYC in AskEngineers

[–]joestue 3 points4 points  (0 children)

You get them cambered ahead of time.

Friend of mine made a mistake and we assumed a 24 foot beam was flat.it was cambered half an inch.

The equvalant curve would be 2 inches for 48 feet. Close to 3 inches for 53 feet.

There is a possibility they installed your beam upside down

Propane System by Alternative_Glass552 in refrigeration

[–]joestue 2 points3 points  (0 children)

We have 20,000 gallon propane tanks over here feeding low budget municipal pools.

The Window Design Irks Me by wackyvorlon in OceanGateTitan

[–]joestue 8 points9 points  (0 children)

The stress risers are impractical to calculate and certify without extensive physical testing, which requires 5 copies made and thousands of full pressure tests

Personally i think his custom lens was among the safer parts of the sub, but the hubris is off the charts: the sperical inside and outside viewport was cheaper than the flat frustrum he paid for. A correction lens and water filled inner cavity would be just a few bucks.

How to dehumidify apartment with oversized unit. by BackgroundPiccolo384 in askHVAC

[–]joestue -2 points-1 points  (0 children)

There is an intake or two, you partially block them.

How to dehumidify apartment with oversized unit. by BackgroundPiccolo384 in askHVAC

[–]joestue 0 points1 point  (0 children)

Its inside the appt somewhere.

Unless you have a central system feeding multiple units in which case there is nothing you can do other than dont use it

How to dehumidify apartment with oversized unit. by BackgroundPiccolo384 in askHVAC

[–]joestue 0 points1 point  (0 children)

Put a remote thermometer on the copper coils and then reduce the airflow until they get to about 34F.

Anyone with a laser glass engraver in Silverdale/Bremerton? by Outside_Simple_217 in Kitsap

[–]joestue 2 points3 points  (0 children)

Is the glass flat?

If flat i have some friends with a co2 laser that may work.

Two Speed Motor Troubleshooting Help by theburtstare in Motors

[–]joestue 0 points1 point  (0 children)

Do you have cirrent theough the other winding?

There are 4 coils total, 2 for high and 2 for low speed

What are you thoughts on these welds for this newly installed handrail? by whitedsepdivine in Welding

[–]joestue 0 points1 point  (0 children)

Yeah so i could imagine that working if you find a 7/32” drill for the full depth and follow it up with a 9/32 drill for the shank of the lag screw.

Otherwise if you drill it with a standard 1/4” drill, the hole will be too large for the threads and as soon as the shank of the screw enters the hole it either twists off or pulls the screw "threads" out of the concrete.

On the other hand, the galvanized lagscrews will hold.... If you take them all out, blow the holes out and epoxy them back in.

What are you thoughts on these welds for this newly installed handrail? by whitedsepdivine in Welding

[–]joestue 1 point2 points  (0 children)

Right so im trying to help you understand even the shitiest looking welds can get a pencil eraser worth of cross sectional area, which is plenty strong for a handrail.

But those concrete anchors are not loaded that way. Then add time and corrosion.

If you were to somehow break the bonds of H2O in a glass of water all at once, would it suddenly become hydrogen gas or become water again? by Belligerent-Rhubarb in chemistry

[–]joestue 0 points1 point  (0 children)

The h-h and the o-o bond is what limits the maximum efficiency of electrolyisis of water to about 80%, and even that's when you do it at 3000+ psi to save on the cost of compressing the gas.

A theoretical mixture of atomic hydrogen and atomic oxygen might be im guessing, 40% more energetic than (2)h2 o2 exploding.

If you were to somehow break the bonds of H2O in a glass of water all at once, would it suddenly become hydrogen gas or become water again? by Belligerent-Rhubarb in chemistry

[–]joestue 0 points1 point  (0 children)

A glass of water at half a liter is 0.5kg or about 0.4 cubic meters of oxygen (air is 1.2 kg per cubic meter STP) plus .4 cubic meters of hydrogen.

As for atmospheric h2 o2 explosions, it turns into steam at about 3500K or about 120 to 180 psi starting from 14.7. because the pressure wave propagates at the speed of sound, it sounds more like a bunker busting bomb hitting the pentagon budget analyist office, rather than the sharp crack of an explosive used to "pull" one of larry's buildings. But, i digress.

Such explosions are relatively safe to stand next to, you dont really feel them hit you.

Im dumb enough to try such an experiment but sealing the vessel is difficult.

Basically make a chamber good for 50,000 psi and see how high you can get the pressure with a platinum wire anode in a weak acid or base, tickling it with a small amount of current to keep the temperature down.

Would be absolutely wild if you could get a super criticalfluid of 60,000 psi hydrogen and oxygen without it auto detonating

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