Final4Practice.06

Final4Practice.06 - PGE 421K Spring 2006 Final Exam Open...

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PGE 421K Spring 2006 Final Exam Open book and open notes. No credit for answers without units or with incorrect or unspecified dimensions. Put all your work on the exam paper. Blank pages are included at the end. 2) The sketch below shows two pores in a membrane, each containing a droplet of the same nonwetting phase. The droplets have the same volume, and the system is static (no fluids are moving). Given that r 1 = 2 r 2 , which of the following is true: 5 pts 1. P c ,1 P c ,2 2. , 2 nw nw PP 3. ,2 cc r 1 r 2 3) Incompressible, multicomponent fluid flows through the control volume below at steady state. The following reaction occurs within the control volume: A + B 3 C + D . 5 pts Given: , which of the following is true 12 1 ˆˆ ;0 ; 0 ; s HH Q W zz  2 1. mm  2. VV 3. nn P w 1 1 ˆ m H Control Volume 2 2 ˆ m H

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4) Work all four parts of this problem. Pumps and compressors are generally designed for a single phase fluid. The German pump manufacturer Bornemann AG has developed a twin-screw pump for mixtures that can move gas, oil and water phases simultaneously. This enables what they call multiphase boosting from the wellhead to a separator. See sketch below. For the purposes of estimating the shaft work required by the pump, you can treat the gas and liquid phases separately. That is, you can compute the work required to compress the gas, the work required to pump the liquid, and add them to get the total shaft work. P = 350 psia separator T = 50 C P = 250 psia wellhead Multiphase pump You are considering using this pump on your surface facilities in a gas condensate field.
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Final4Practice.06 - PGE 421K Spring 2006 Final Exam Open...

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