[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/diy/ - Do It Yourself


View post   

File: 32 KB, 652x309, Water.jpg [View same] [iqdb] [saucenao] [google]
2624051 No.2624051 [Reply] [Original]

First off, I know that the numbers aren't accurate, but getting accurate numbers is too much effort to add nothing to the concept.

So this system where you funnel 100lbs of water down from 10x10in to 1x1in should theoretically raise the water pressure to 100psi. But it doesn't. Why not? I know I'm dumb for asking this but there's no stupid questions. So what's missing to make this not work?

I'm trying to design something to use just the weight of water and gravity to increase water pressure, without electricity or anything, so if there's any ways to do that, please tell me

>> No.2624067

>>2624051
It's only a function of depth and has nothing to do with area. A pipe one inch in diameter 100 feet tall has the same pressure at the bottom as a pipe of any diameter.

Is anything taught in school nowadays other than SJW bullshit?

>> No.2624068

>>2624067
Even if the area of the pipe changes, the psi wouldn't change? Are you sure that's right?

>> No.2624070

>>2624068

go argue with science you mouthbreathing idiot

https://www.engineeringtoolbox.com/hydrostatic-pressure-water-d_1632.html

>> No.2624134

>>2624051
>>2624068
This isn't a /DIY/ question. I went and googled it for you, here's a link that might help you understand:
https://sciencing.com/calculate-psi-7506069.html

Now fuck off.

>> No.2624136

>>2624051
> trying to design something to use just the weight of water and gravity to increase water pressure
If the pressure was 100 psi, you could connect a tube from the bottom outlet and feed it back into the top. Way higher than the top, actually… and then you could put an impeller in the path of that water that runs a dynamo, and you’ve got free electricity forever!
See the problem, Elon?
You’re definitely the first one to think of this scheme. You should give it a name.

>> No.2624140

>>2624136
I'll name the scheme after the shape of the funnel, some sort of pyramid or something like that.

>> No.2624141

>>2624068
simplest way to demonstrate this is to connect a hose to your funnel and hold them at the same level
the water level in both pipe and funnel will be the same

>> No.2624143

>>2624068
>Are you sure that's right?
You sound vaxxinated.

>> No.2624151
File: 7 KB, 460x440, billion hours in paint.png [View same] [iqdb] [saucenao] [google]
2624151

>>2624051
not an expert on burger units but isn't psi pound-force and not pounds?
you're correct that the pressure from the weight from your object would increase by a factor of 100 but hydrostatic pressure is only dependent on the height. just think of it as a one square inch tube that goes from bottom to the top. it has a weight and exerts a force on that one square inch.
but i'm not going to do hydrostatic calculations in burger units, i don't hate myself that much yet

>I'm trying to design something to use just the weight of water and gravity to increase water pressure, without electricity or anything, so if there's any ways to do that, please tell me
here, what do i win? but you're not going to get any flow rate out of this. not sure what you're trying to achieve and depending you're going to violate the first law

>> No.2624158

>>2624151
oh wait i suppose you could drain the upper reservoir once it's in its lowest position, raise the piston with a spring, refill whatever you want pressurised, and fill the reservoir again to repeat the process, but honestly i'd just get a pump

>> No.2624168

>>2624051
Just put a lid on it and attach an air compressor to it. Then you can pressurize it to whatever you like without needing four more years of engineering school.

>> No.2624208

>>2624168
....or just get a pump