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Thermomechanical simulation puts an autoclave under pressure
Autoclave Maxitech resorted to numerical simulation to validate its calculations and make sure that its new autoclave, subjected to harsh mechanical and thermal stresses, was correctly designed. Read the story!
Numerically simulating the thermomechanical behaviour of an autoclave in order to verify its correct operation and find any possible design defects: this was the mission entrusted to Cetim by Autoclave Maxitech, an engineering company specialising in test benches, compression systems (liquid and gas) and autoclaves for niche markets.
This very special autoclave must hold a constant temperature of approximately 300°C despite a higher source temperature (800°C) and a low pressure (35 bars), with the requirement that the temperature must not drop below 250°C so as to prevent condensation.
The simulation carried out by Cetim validated Autoclave Maxitech’s calculations, especially with regard to the circulation velocity and flow rate of the heat transfer fluid. On the other hand, the Cetim experts found significant mechanical stresses on the bottom cover of the furnace, due to the induced thermal gradients. The proposed solution was simple and efficient: protecting this cover with an off-the-shelf insulating plate made of refractory elements with organic and inorganic binders.
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