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Wilmar's ethanol tank during engineering inspection
Home  Projects  >  TT01 Ethanol Tank Vacuum Check

Sarina Bioethanol | 2022

TT01 Ethanol Tank Vacuum Check

Client: Wilmar

Mechanical inspection and certification provided by ADM
Inspection & certification
Mechanical engineering client support provided by ADM
On-site client support
ADM's mechanical engineering services including finite element analysis (FEA)
Advanced FEA
Tank representing the range of tanks and storage that ADM Engineering specialises in
Tanks & storage

Project summary

ADM created an exact model of Wilmar’s ethanol tank to determine if it could withstand a slight vacuum. After conducting on-site laser scanning and Ultrasonic Thickness Testing (UTT), ADM converted the vessel to a 3D mesh, then converted the mesh into a surface and analysed the surface model using Inventor Nastran. The analysis findings confirmed that the tank would retain its structural integrity.

Project details

In 2022, Wilmar asked ADM to check if their 520m3 ethanol tank at Proserpine Mill could withstand a slight vacuum without remediation or modification.

How ADM approached the project

To accurately assess how the tank would manage pressure from a vacuum, ADM completed a laser scan of the existing tank. This scan involved UTT measurements and a 3D scan point cloud to realise the exact shape and dimensions of the tank. The point cloud data were first converted to a mesh in Autodesk for review.

After reviewing and repairing the data-based mesh, this file was converted to a surface and transferred to Inventor Nastran. Our engineers were then able to commence Nonlinear FEA analysis on the model, review stress and buckling, and ensure that the tank met the required standards and regulations for certification.

The results

Using the evidence-founded model of the tank, ADM demonstrated the effects of a vacuum on the tank by showing that it can withstand the required vacuum pressure without future remediation or modification. The techniques used to review this tank can be applied to other complicated vessels, structures, mechanical plant, and tanks.

Ethanol tank 3D point cloud converted to mesh in Autodesk
Ethanol tank mesh repair in Autodesk, surface conversion in Inventor Nastran, and Nonlinear FEA anlaysis

ADM uses advanced 3D scanning and modelling techniques to review, modify, and recertify complex structures to meet required standards.

If you have a complex mechanical engineering problem that needs solving, we’d like to help you.