Calculating Pressure Vessel Thickness with Given Data

In summary, the problem is to find the thickness of a Pressure Vessel given the operating pressure, temperature, material type and grade, and the outside diameter/radius. The equations used in attempting to solve this problem include the ASME Code SEC.VIII, DIV.2, ARTICLE.2 formula, but it only takes into account the inside diameter. Suggestions were made to use the outside diameter and subtract the thickness to calculate the inside diameter, or to guess a thickness and go through the code calculations to check for compatibility.
  • #1
naggar218
1
0

Homework Statement


Problem: find the thickness of a Pressure Vessel.
Given: Operating Pressure, Operating Temperature, Material type and Grade, and OUTSIDE Diameter/Radius


Homework Equations


q1. how to calculate Design Pressure/Temp. from Operating Pressure/Temp.?
q2. how to calculate INSIDE Radius using OUTSIDE Radius (note that thickness is needed)?


The Attempt at a Solution


I tried to obtain the thickness of that pressure vessel using (ASME Code SEC.VIII, DIV.2, ARTICLE.2)'s formula, but it only takes INSIDE Diameter, so how can i obtain Inside Diameter to get the thickness.
Or is there any other way that doesn't require INSIDE Diameter to get the thickness.
 
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  • #2


You could use the OD in the equation and then subtract t to get the ID. Then just check to see if the calculated ID can withstand the pressure.
 
  • #3


Why don't you guess a thickness which then provides an inside diameter. Go through the code calculations with the guessed thickness and see if you come up with the same ratings.

If it's greater than 5 cubic feet there should be paperwork/records on it somewhere.
 

Related to Calculating Pressure Vessel Thickness with Given Data

1. What is a pressure vessel?

A pressure vessel is a container designed to hold gases or liquids at a pressure significantly different from the ambient pressure. It is typically made of metal and is used in a variety of industries, such as oil and gas, chemical, and pharmaceutical.

2. Why is it important to calculate the pressure vessel thickness?

Calculating the pressure vessel thickness is crucial for ensuring the structural integrity and safety of the vessel. It helps determine the minimum required thickness to withstand the internal pressure and prevents potential failures or accidents.

3. What data is needed to calculate the pressure vessel thickness?

The data needed to calculate the pressure vessel thickness includes the design pressure, design temperature, material properties, and vessel dimensions such as diameter, length, and wall thickness. Other factors such as corrosion allowance and weld joint efficiency may also need to be considered.

4. How is the pressure vessel thickness calculated?

The pressure vessel thickness can be calculated using various methods, such as the ASME Boiler and Pressure Vessel Code or the Pressure Vessel Handbook. These methods take into account the vessel's design pressure, material properties, and dimensions to determine the required thickness. Computer-aided design software can also be used for more accurate calculations.

5. Are there any safety codes or regulations that should be followed when calculating pressure vessel thickness?

Yes, there are safety codes and regulations, such as the ASME Boiler and Pressure Vessel Code, that provide guidelines and standards for designing, fabricating, and inspecting pressure vessels. It is important to follow these codes to ensure the pressure vessel's safety and compliance with industry standards.

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