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Dished Head Thickness Formula

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Dished Head Thickness is the distance through an object, as distinct from width or height. Check FAQs

t hdished = (\frac{p \cdot R c \cdot W}{2 \cdot f j \cdot J}) + c

t_hdished - Dished Head Thickness?p - Internal Pressure in Vessel?R_c - Crown Radius for Jacketed Reaction Vessel?W - Stress Intensification Factor?f_j - Allowable Stress for Jacket Material?J - Joint Efficiency for Shell?c - Corrosion Allowance?

Dished Head Thickness Example

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Here is how the Dished Head Thickness equation looks like with Values.

Here is how the Dished Head Thickness equation looks like with Units.

Here is how the Dished Head Thickness equation looks like.

81.9235 = (\frac{0.52 \cdot 1401 \cdot 20}{2 \cdot 120 \cdot 0.85}) + 10.5

81.9235mm = (\frac{0.52N/mm² \cdot 1401mm \cdot 20}{2 \cdot 120N/mm² \cdot 0.85}) + 10.5mm

81.9235 = (\frac{0.52 \cdot 1401 \cdot 20}{2 \cdot 120 \cdot 0.85}) + 10.5

Tip: Use pencil () icon above to edit Input Values and Units.

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Dished Head Thickness Solution

Follow our step by step solution on how to calculate Dished Head Thickness?

FIRST Step Consider the formula

t hdished = (\frac{p \cdot R c \cdot W}{2 \cdot f j \cdot J}) + c

Next Step Substitute values of Variables

∴

t hdished = (\frac{0.52N/mm² \cdot 1401mm \cdot 20}{2 \cdot 120N/mm² \cdot 0.85}) + 10.5mm

Next Step Prepare to Evaluate

∴

t hdished = (\frac{0.52 \cdot 1401 \cdot 20}{2 \cdot 120 \cdot 0.85}) + 10.5

Next Step Evaluate

∴

t hdished = 0.0819235294117647m

Next Step Convert to Output's Unit

∴

t hdished = 81.9235294117647mm

LAST Step Rounding Answer

∴

t hdished = 81.9235mm

Dished Head Thickness Formula Elements

Variables

Dished Head Thickness

Dished Head Thickness is the distance through an object, as distinct from width or height.

Symbol: t_hdished

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Internal Pressure in Vessel

Internal Pressure in Vessel is a measure of how the internal energy of a system changes when it expands or contracts at constant temperature.

Symbol: p

Measurement: PressureUnit: N/mm²

Note: Value should be greater than 0.

Crown Radius for Jacketed Reaction Vessel

Crown Radius for Jacketed Reaction Vessel is the horizontal distance, as seen in plan view, from the trunk of a tree to the edge of the crown.

Symbol: R_c

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Stress Intensification Factor

Stress Intensification Factor (SIF) is a multiplier factor on nominal stress for typical bends and intersection components so that the effect of geometry and welding.

Symbol: W

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Allowable Stress for Jacket Material

Allowable Stress for Jacket Material at Design Temperature is defined as the material failure stress divided by a factor of safety greater than one.

Symbol: f_j

Measurement: StressUnit: N/mm²

Note: Value should be greater than 0.

Joint Efficiency for Shell

Joint Efficiency for Shell refers to the effectiveness of the joint between two adjacent sections of a cylindrical shell, such as in a pressure vessel or a storage tank.

Symbol: J

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Corrosion Allowance

Corrosion allowance is defined as an extra thickness normally added to carbon and low alloy steel to mitigate the CO2 corrosion rate.

Symbol: c

Measurement: LengthUnit: mm

Note: Value can be positive or negative.

Credits

Creator Image

Created by Heet Vora

Thadomal Shahani Engineering College (Tsec), Mumbai

Heet Vora has created this Formula and 200+ more formulas!

Verifier Image

Verified by Prerana Bakli

University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA

Prerana Bakli has verified this Formula and 1600+ more formulas!

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How to Evaluate Dished Head Thickness?

Dished Head Thickness evaluator uses Dished Head Thickness = ((Internal Pressure in Vessel*Crown Radius for Jacketed Reaction Vessel*Stress Intensification Factor)/(2*Allowable Stress for Jacket Material*Joint Efficiency for Shell))+Corrosion Allowance to evaluate the Dished Head Thickness, Dished Head Thickness Thickness formula is defined as the distance from the external part to the internal part of a dished head. Dished Head Thickness is denoted by t_hdished symbol.

How to evaluate Dished Head Thickness using this online evaluator? To use this online evaluator for Dished Head Thickness, enter Internal Pressure in Vessel (p), Crown Radius for Jacketed Reaction Vessel (R_c), Stress Intensification Factor (W), Allowable Stress for Jacket Material (f_j), Joint Efficiency for Shell (J) & Corrosion Allowance (c) and hit the calculate button.

FAQs on Dished Head Thickness

What is the formula to find Dished Head Thickness?

The formula of Dished Head Thickness is expressed as Dished Head Thickness = ((Internal Pressure in Vessel*Crown Radius for Jacketed Reaction Vessel*Stress Intensification Factor)/(2*Allowable Stress for Jacket Material*Joint Efficiency for Shell))+Corrosion Allowance. Here is an example- 81923.53 = ((520000*1.401*20)/(2*120000000*0.85))+0.0105.

How to calculate Dished Head Thickness?

With Internal Pressure in Vessel (p), Crown Radius for Jacketed Reaction Vessel (R_c), Stress Intensification Factor (W), Allowable Stress for Jacket Material (f_j), Joint Efficiency for Shell (J) & Corrosion Allowance (c) we can find Dished Head Thickness using the formula - Dished Head Thickness = ((Internal Pressure in Vessel*Crown Radius for Jacketed Reaction Vessel*Stress Intensification Factor)/(2*Allowable Stress for Jacket Material*Joint Efficiency for Shell))+Corrosion Allowance.

Can the Dished Head Thickness be negative?

No, the Dished Head Thickness, measured in Length cannot be negative.

Which unit is used to measure Dished Head Thickness?

Dished Head Thickness is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Dished Head Thickness can be measured.

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