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Questions tagged [pressure-vessel]

Containers that are designed specifically to retain internal pressure or a vacuum

1 vote
1 answer
37 views

Circumferential stress in a toroidal shell

Consider the following formula for circumferential stress (σ2) in a toroidal shell (taken from Roark's Formulae for Stress and Strain): It seems that it has been derived by using simple force balance ...
Johnsmith's user avatar
0 votes
2 answers
59 views

Is It Possible To Calculate The Internal Pressure Which A Sealed Glass Vessel Can Support, By Creating A Relative Vacuum Outside The Vessel?

Questions are bold with context surrounding them. I am not an engineer. Well, I'm a computer scientist but I don't do this. I do, however, brew kombucha and am looking to scale up. I have a new ...
Matthew Jendrasiak's user avatar
0 votes
1 answer
138 views

Rectangular pressure vessel

I'm trying to find a theory reference for stress and deformation analysis of a closed rectangular pressure vessels with constant thickness subjected to pressure loads. By now, my test case would be ...
Enrico's user avatar
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0 votes
1 answer
274 views

Pros and Cons of Carbon Fibre High Pressure Tank

What are the advantages and disadvantages of using carbon fibre for pressure vessel construction? Carbon fibre has a very high tensile strength and is very light-weight. According to this calculator ...
Yassin's user avatar
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0 votes
0 answers
19 views

How do I calculate the stress distribution (von Mises stress) on the top cap of a vacuum vessel cylinder subjected to 77 kPa, h=600 mm and dia=200mm

I have designed a vacuum vessel 600 mm deep and 200 mm in diameter with a thickness of 2mm from SS 316 and simulated pressure distribution using FEA. I want to theoretically validate the findings and ...
Raouf's user avatar
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0 votes
0 answers
22 views

Cuboid pressured container - will the pressure reach the shear pressure of the material?

I'm having a go at designing a water electrolyser for producing hydrogen. I would like to store the hydrogen with minimal compression effort. Up until the past week I have been thinking about using a ...
Boolean's user avatar
  • 131
2 votes
0 answers
56 views

What are the claimed advantages of using Carbon fiber for a pressure hull? [closed]

Much of the news around the Titan incident has focused on all the reasons that carbon fiber was a bad choice for the hull, but I've yet to see any discussion as to why it was chosen at all. Was it ...
BCS's user avatar
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0 votes
1 answer
89 views

Thin wall pressure vessels: local stresses in bends

How can I calculate the stresses in corners where different geometries meet? This image is a quick example of the positions i am referring to. Additional information In class we studied the membrane ...
RocketScience's user avatar
1 vote
1 answer
993 views

In a thin-walled cylinder, what exactly is Hoop Stress vs Radial Stress?

If I have a thin-walled and not very stiff cylinder, such as a rubber-band, and I put it between two pins and pull it apart radially, is the force required considered the hoop force or radial force? ...
Colton Campbell's user avatar
-1 votes
1 answer
43 views

Why is there a MIN and MAX marking on a car coolant bottle?

This question was initially posted in physics stack exchange, then the mechanics stack exchange but I think it's more appropriate for engineering section instead. I've always thought the minimum and ...
Aden's user avatar
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0 votes
1 answer
46 views

If a piston has a larger upper surface area than lower surface area experience a force downwards even if that piston is ventilated?

Here I have a system where there is 18 bar of Nitrogen in a valve with a piston. The pressurized nitrogen is below the piston, above the piston, and also in the ventilation bore in the piston. ...
Konstruktion Powertech's user avatar
0 votes
1 answer
31 views

What is the best way to go about finding properties of stress like working stress and yield strength when the material is unknown?

Our group has been working to design a combustion chamber of a relatively small hybrid engine with a chamber pressure of 30 bars. We are currently faced with the problem that we cannot easily access ...
Baldwin Chen's user avatar
0 votes
2 answers
71 views

How to 'normalise' the effect of temperature on pressure to determine an accurate leak rate

I want to determine the leak rate of a container. I pumped it with air and measured the temperature and pressure within the container. What I observed is that, due to fluctuations of temperature in ...
Pipistrelle's user avatar
0 votes
0 answers
25 views

Are you able to compute the bending moment exerted on the inner edges of parallelepiped box under inner pressure?

Suppose you have a parallelepiped box of dimensions $a\times b\times L$ with $L\gg (a+b)$, filled with simple distilled water exerting a uniform and constant inner pressure $p$ as reported in figure. ...
Fabio Fuiano's user avatar
0 votes
0 answers
499 views

How to calculate the logarithmic mean temperature difference of a jacketed vessel?

I'm a bit confused on how to calculate the $ \Delta T_{LM}$ of a jacketed isothermal CSTR. Because the formula for the logarithmic mean temperature difference is: $$ \Delta T_{LM} = \frac{\Delta T_{...
HWIK's user avatar
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