A mixture of n-hexane vapor and air leaves a solvent recovery unit and flows through a 70 cm diameter duct at a velocity of 3.00 m/s. At a sampling point in the duct the temperature is 40 C, the pressure is 850 mm Hg, and the dew point of the sampled gas is 25 C. The gas is fed to a condenser in which it is cooled at constant pressure, condensing 60% of the hexane in the feed. a) Perform a degree-of-freedom analysis to show that enough information is available to calculate the required condenser outlet temperature (C) and cooling rate (kW). b) Perform the calculations to acquire the required condenser outlet temperature (C) and cooling rate (kW).
A mixture of n-hexane vapor and air leaves a solvent recovery unit and flows through a 70 cm diameter duct at a velocity of 3.00 m/s. At a sampling point in the duct the temperature is 40 C, the pressure is 850 mm Hg, and the dew point of the sampled gas is 25 C. The gas is fed to a condenser in which it is cooled at constant pressure, condensing 60% of the hexane in the feed. a) Perform a degree-of-freedom analysis to show that enough information is available to calculate the required condenser outlet temperature (C) and cooling rate (kW). b) Perform the calculations to acquire the required condenser outlet temperature (C) and cooling rate (kW).
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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A mixture of n-hexane vapor and air leaves a solvent recovery unit and flows through a 70 cm diameter duct at a velocity of 3.00 m/s. At a sampling point in the duct the temperature is 40 C, the pressure is 850 mm Hg, and the dew point of the sampled gas is 25 C. The gas is fed to a condenser in which it is cooled at constant pressure, condensing 60% of the hexane in the feed.
- a) Perform a degree-of-freedom analysis to show that enough information is available to calculate the required condenser outlet temperature (C) and cooling rate (kW).
- b) Perform the calculations to acquire the required condenser outlet temperature (C) and cooling rate (kW).
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