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The permeability of a clean, dry core plug is to be determined. The core is cylindrical with a diameter of 35 mm and a length of 33 mm. The core was installed in a gas permeameter as shown in the diagram below and air was flowed through it at an average rate of 120 cm³ in 2 minutes 42 seconds, measured at atmospheric pressure. The pressure differential across the sample was kept constant at 17 cm of mercury. The upstream pressure (at the inlet of the core) was 159 cm of mercury. The gas viscosity at the test temperature was 0.01808 cp. The barometric pressure was 76 cm of mercury.

The permeability of a clean, dry core plug is to be determined. The core is cylindrical with a diameter of 35 mm and a length of 33 mm. The core was installed in a gas permeameter as shown in the diagram below and air was flowed through it at an average rate of 120 cm³ in 2 minutes 42 seconds, measured at atmospheric pressure. The pressure differential across the sample was kept constant at 17 cm of mercury. The upstream pressure (at the inlet of the core) was 159 cm of mercury. The gas viscosity at the test temperature was 0.01808 cp. The barometric pressure was 76 cm of mercury.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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i. What is the upstream pressure in atm and the value of the outlet pressure in atm?

ii. Calculate the permeability of core sample at the test conditions 

iii. Evaluate the cross-sectional area of the core sample in cm2

The permeability of a clean, dry core plug is to be determined. The core is cylindrical with a diameter of 35 mm and a length of 33 mm. The core was installed in a gas permeameter as shown in the diagram below and air was flowed through it at an average rate of 120 cm³ in 2 minutes 42 seconds, measured at atmospheric pressure. The pressure differential across the sample was kept constant at 17 cm of mercury. The upstream pressure (at the inlet of the core) was 159 cm of mercury. The gas viscosity at the test temperature was 0.01808 cp. The barometric pressure was 76 cm of mercury.
Transcribed Image Text:The permeability of a clean, dry core plug is to be determined. The core is cylindrical with a diameter of 35 mm and a length of 33 mm. The core was installed in a gas permeameter as shown in the diagram below and air was flowed through it at an average rate of 120 cm³ in 2 minutes 42 seconds, measured at atmospheric pressure. The pressure differential across the sample was kept constant at 17 cm of mercury. The upstream pressure (at the inlet of the core) was 159 cm of mercury. The gas viscosity at the test temperature was 0.01808 cp. The barometric pressure was 76 cm of mercury.
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