A Small-Volume Apparatus for the Measurement of Phase Equilibria

An apparatus has been designed and constructed for the measurement of vapor-liquid equilibrium properties. The main components of the apparatus consist of an equilibrium cell and a vapor circulation pump. The cell and all of the system valves are housed inside a temperature controlled, insulated alu...

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Detalles Bibliográficos
Autores principales: Outcalt, Stephanie L., Lee, Byung-Chul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 2004
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4856202/
https://www.ncbi.nlm.nih.gov/pubmed/27366631
http://dx.doi.org/10.6028/jres.109.039
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author Outcalt, Stephanie L.
Lee, Byung-Chul
author_facet Outcalt, Stephanie L.
Lee, Byung-Chul
author_sort Outcalt, Stephanie L.
collection PubMed
description An apparatus has been designed and constructed for the measurement of vapor-liquid equilibrium properties. The main components of the apparatus consist of an equilibrium cell and a vapor circulation pump. The cell and all of the system valves are housed inside a temperature controlled, insulated aluminum block. The temperature range of the apparatus is 260 K to 380 K to pressures of 6 MPa. The uncertainty of the temperature measurement is 0.03 K, and the uncertainty in the pressure measurement is 9.8 × 10(−4) MPa. An automated data acquisition system is used to measure temperature and pressure at equilibrium. The apparatus has been performance tested by measuring the vapor pressures of propane, butane, and a standard mixture of propane + butane.
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spelling pubmed-48562022016-06-30 A Small-Volume Apparatus for the Measurement of Phase Equilibria Outcalt, Stephanie L. Lee, Byung-Chul J Res Natl Inst Stand Technol Article An apparatus has been designed and constructed for the measurement of vapor-liquid equilibrium properties. The main components of the apparatus consist of an equilibrium cell and a vapor circulation pump. The cell and all of the system valves are housed inside a temperature controlled, insulated aluminum block. The temperature range of the apparatus is 260 K to 380 K to pressures of 6 MPa. The uncertainty of the temperature measurement is 0.03 K, and the uncertainty in the pressure measurement is 9.8 × 10(−4) MPa. An automated data acquisition system is used to measure temperature and pressure at equilibrium. The apparatus has been performance tested by measuring the vapor pressures of propane, butane, and a standard mixture of propane + butane. [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 2004 2004-12-01 /pmc/articles/PMC4856202/ /pubmed/27366631 http://dx.doi.org/10.6028/jres.109.039 Text en https://creativecommons.org/publicdomain/zero/1.0/ The Journal of Research of the National Institute of Standards and Technology is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.
spellingShingle Article
Outcalt, Stephanie L.
Lee, Byung-Chul
A Small-Volume Apparatus for the Measurement of Phase Equilibria
title A Small-Volume Apparatus for the Measurement of Phase Equilibria
title_full A Small-Volume Apparatus for the Measurement of Phase Equilibria
title_fullStr A Small-Volume Apparatus for the Measurement of Phase Equilibria
title_full_unstemmed A Small-Volume Apparatus for the Measurement of Phase Equilibria
title_short A Small-Volume Apparatus for the Measurement of Phase Equilibria
title_sort small-volume apparatus for the measurement of phase equilibria
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4856202/
https://www.ncbi.nlm.nih.gov/pubmed/27366631
http://dx.doi.org/10.6028/jres.109.039
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