Joule-thomson process in the liquefaction of helium
نویسندگان
چکیده
منابع مشابه
Joule-Thomson Process in the Liquefaction of Helium
Many different devices and cycle arrangements can be used in part.ially cooling gas for helium liquefaction . With the exception of the Simon freeexpansion type liquefier , howeverwhich is suitable only for small-yield, batch productionall uch arrangements have a final stage at the lowest temperatures, in which a so-called Joule-Thomson proces takes place. This process may be considered to incl...
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In the present work, we have examined the ability of some different equations of state in predicting the Joule-Thomson coefficient, ?J-T, of different fluids. For dense fluids, for which density is greater than the Boyle density, ?B, two appropriate equations of state, namely the linear isotherm regularity, LIR, and the dense system equation of state, DSEOS, have been examined. The results show...
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Wepresent a revised formof the energy balance for the coupled thermodynamics of liquid water flowing in porousmedia and give examples of situations where a commonly used formulation based on transport of enthalpy leads to erroneous results. Assuming negligible contribution from kinetic energy as well as sources and sinks such as energy from radioactive decay, total energy conservation is reduce...
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In this work, we have calculated the Joule-Thomson inversion curve of two important associating fluids, namely water and methanol, from the SAFT equation of state. Comparisons with the available experimental data, for water and methanol indicate that this molecular based equation of state gives good prediction of the low temperature branch; but, unfortunately, due to lack of isenthalpic dat...
متن کاملcomparison of the equations of state from joule-thomson coefficient
in the present work, we have examined the ability of some different equations of state in predicting the joule-thomson coefficient, ?j-t, of different fluids. for dense fluids, for which density is greater than the boyle density, ?b, two appropriate equations of state, namely the linear isotherm regularity, lir, and the dense system equation of state, dseos, have been examined. the results show...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards
سال: 1958
ISSN: 0091-0635
DOI: 10.6028/jres.060.020