Sep 26, 2005 #1 MJJones Mechanical Sep 26, 2005 9 0 0 US Given an oil-filled cavity that is heated, how can I find the oil pressure after thermal expansion? I have CTE and original/ending volumes, just don't remember hwo to calculate pressure on the seal....trying to calculate whether seal with break.
Given an oil-filled cavity that is heated, how can I find the oil pressure after thermal expansion? I have CTE and original/ending volumes, just don't remember hwo to calculate pressure on the seal....trying to calculate whether seal with break.
Sep 26, 2005 #2 TD2K Chemical Jan 11, 2002 2,629 0 0 US If the cavity is fixed volume, the pressure rise is in the order of 50 to 75 psi per deg F for an oil. Upvote 0 Downvote
If the cavity is fixed volume, the pressure rise is in the order of 50 to 75 psi per deg F for an oil.
Sep 28, 2005 #3 Alph Petroleum Dec 2, 2003 26 0 0 NO Change in Volume / Original Volume = Change in Pressure / Bulk Modulus Dp = (Dv/V)*K = K* (Af -At)*DT Af = Fluid Thermal Expansion Co-efficient At = Tubing Thermal Expansion Co-efficient K = Fluid Bulk Modulus Upvote 0 Downvote
Change in Volume / Original Volume = Change in Pressure / Bulk Modulus Dp = (Dv/V)*K = K* (Af -At)*DT Af = Fluid Thermal Expansion Co-efficient At = Tubing Thermal Expansion Co-efficient K = Fluid Bulk Modulus
Sep 28, 2005 #4 vzeos Mechanical Mar 26, 2005 325 0 0 US Take a look at thread124-133483. Upvote 0 Downvote
Sep 28, 2005 Thread starter #5 MJJones Mechanical Sep 26, 2005 9 0 0 US AMAZING, gentlemen. Thanks for your help. Upvote 0 Downvote
Sep 29, 2005 #6 MortenA Petroleum Aug 20, 2001 2,995 0 0 DK Theres also a FAQ at: http://www.eng-tips.com/faqs.cfm?fid=224 Best regards Morten Upvote 0 Downvote