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Horizontal Pressure Vessel[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: Horizontal Pressure Vessel
- From: MSSROLLO(--nospam--at)aol.com
- Date: Mon, 5 Oct 1998 08:46:27 EDT
I am checking an existing horizontal pressure vessel for a Client and have been using finite elements to model the tank. I was looking for a information concerning any existing code that would give a formal method of calculating the stresses/forces etc. The Client wants to increase the pressure to 10 psig whereas the original design was for 6" of water as pressure and 2" of water as vacuum. I am getting a high compressive force in one direction at the junction of the head to the shell. I beleive this is due to the incompatible "growth" of the 2 areas. The high force is only for about 8" around the shell to head joint then rapidly drops to half the force. This is my first time doing a horizontal tank and would like some insight from anyone familiar with horizontal tanks. The tank is made of 316 Stainless and is 10' in diameter. The length of the shell is 16.5' and the heads appear to be a 10' radius approximately. The tank wall is 3/16" thick in all areas. The specific gravity is 1.0 and the operating temp is 300 degrees F. The tank is supported on 2 saddles that are about 2.5' from the end. of the shell itself. The Client realizes that 3/16" material is typically a minimum allowed thickness and is beleiving this tank can take the 10 psig. In general, does this sound correct for the geometry described above? Thanks Ron Martin, PE.
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