Vessel Wall Thickness for Channel Type Jacket Calculator

Vessel Thickness Formula:

\[ t_{vessel} = d \times \sqrt{\frac{0.167 \times p_j}{f_j}} + c \]

Design Length of Channel Section:

Design Jacket Pressure:

N/mm²

Allowable Stress for Jacket Material:

N/mm²

Corrosion Allowance:

Vessel Thickness: mm

1. What is Vessel Wall Thickness Calculator for Channel Type Jacket?

Definition: This calculator determines the required wall thickness for a channel type jacket pressure vessel based on design parameters.

Purpose: It helps engineers ensure pressure vessels have adequate wall thickness to withstand internal pressures while considering material properties and corrosion factors.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ t_{vessel} = d \times \sqrt{\frac{0.167 \times p_j}{f_j}} + c \]

Where:

\( t_{vessel} \) — Vessel wall thickness (mm)
\( d \) — Design length of channel section (mm)
\( p_j \) — Design jacket pressure (N/mm²)
\( f_j \) — Allowable stress for jacket material (N/mm²)
\( c \) — Corrosion allowance (mm)

Explanation: The formula calculates the minimum required thickness considering pressure loading, material strength, and adds a corrosion allowance for long-term durability.

3. Importance of Vessel Wall Thickness Calculation

Details: Proper thickness calculation ensures structural integrity, safety compliance, and prevents catastrophic failures in pressure vessels.

4. Using the Calculator

Tips: Enter all parameters with appropriate units. The ±5% indicates typical manufacturing tolerances. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical corrosion allowance?
A: Corrosion allowance typically ranges from 1-3mm depending on the environment and expected service life.

Q2: How is allowable stress determined?
A: Allowable stress is based on material properties at design temperature, with safety factors applied according to relevant codes (ASME, EN, etc.).

Q3: What does the 0.167 factor represent?
A: This is an empirical factor derived from pressure vessel design standards that accounts for geometric and loading conditions.

Q4: When would I need to increase wall thickness beyond calculation?
A: Additional thickness may be needed for seismic loads, unusual service conditions, or when specified by particular design codes.

Q5: How does channel section length affect thickness?
A: Longer channel sections typically require greater wall thickness to maintain structural integrity under pressure.