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See detailPure and Pseudo-pure Fluid Thermophysical Property Evaluation and the Open-Source Thermophysical Property Library CoolProp
Bell, Ian ULg; Wronski, Jorrit; Quoilin, Sylvain ULg et al

in Industrial & Engineering Chemistry Research (2014), 53

Article Pure and Pseudo-pure Fluid Thermophysical Property Evaluation and the Open-Source Thermophysical Property Library CoolProp ACS ActiveView PDFHi-Res Print, Annotate, Reference QuickView PDF [2027 ... [more ▼]

Article Pure and Pseudo-pure Fluid Thermophysical Property Evaluation and the Open-Source Thermophysical Property Library CoolProp ACS ActiveView PDFHi-Res Print, Annotate, Reference QuickView PDF [2027 KB] PDF w/ Links[457 KB] Full Text HTML Abstract Supporting Info -> Figures Reference QuickView Add to ACS ChemWorx Ian H. Bell *†, Jorrit Wronski *‡, Sylvain Quoilin *†, and Vincent Lemort *† † Energy Systems Research Unit, University of Liège, Liège, Belgium ‡ Department of Mechanical Engineering, Technical University of Denmark, Kongens Lyngby, Denmark Ind. Eng. Chem. Res., 2014, 53 (6), pp 2498–2508 DOI: 10.1021/ie4033999 Publication Date (Web): January 13, 2014 Copyright © 2014 American Chemical Society OpenURL UNIV DE LIEGE *E-mail: ian.bell@ulg.ac.be., *E-mail: jowr@mek.dtu.dk., *E-mail: squoilin@ulg.ac.be., *E-mail: vincent.lemort@ulg.ac.be. ACS AuthorChoice Abstract Over the last few decades, researchers have developed a number of empirical and theoretical models for the correlation and prediction of the thermophysical properties of pure fluids and mixtures treated as pseudo-pure fluids. In this paper, a survey of all the state-of-the-art formulations of thermophysical properties is presented. The most-accurate thermodynamic properties are obtained from multiparameter Helmholtz-energy-explicit-type formulations. For the transport properties, a wider range of methods has been employed, including the extended corresponding states method. All of the thermophysical property correlations described here have been implemented into CoolProp, an open-source thermophysical property library. This library is written in C++, with wrappers available for the majority of programming languages and platforms of technical interest. As of publication, 110 pure and pseudo-pure fluids are included in the library, as well as properties of 40 incompressible fluids and humid air. The source code for the CoolProp library is included as an electronic annex. [less ▲]

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See detailA novel aromatic-aliphatic copolyester of poly(ethylene-co-diethylene-terephthalate)-co-poly(L-lactic acid): Synthesis and characterization
Li, Jun; Jiang, Zhi-Qiang; Zhou, Jian et al

in Industrial & Engineering Chemistry Research (2010), 49(20), 9803-9810

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See detailSimulations of Structures in Packed Columns and Validation by X-ray Tomography
Caulkin, R.; Jia, X.; Xu, C. et al

in Industrial & Engineering Chemistry Research (2009), 48(1), 202-213

Packing simulations of generic, nonspherical pellets were performed and compared with experimental data sets obtained using X-ray Computerized tomography (CT). Two modified versions of what was previously ... [more ▼]

Packing simulations of generic, nonspherical pellets were performed and compared with experimental data sets obtained using X-ray Computerized tomography (CT). Two modified versions of what was previously a purely geometrical, digitally based packing algorithm were implemented. Both are aimed at incorporating the effects of particle interaction forces, one utilizing the distinct element method (DigiDEM) and the other an intermediate solution (collision-guided packing or DigiCGP). This article summarizes the models and the simulations performed using these two modified versions of DigiPac and, for model validation purposes, compares the predicted results with the corresponding X-ray tomographic scans of packed columns, in terms of bulk density, local packing density profiles, and pellet orientation distributions. For packed beds of relatively large and identical pellets, the simulation results indicate that particle-particle and particle-wall interactions cannot be ignored if realistic packing structures are to be obtained by simulation and even a simplistic treatment of these interactions can produce significantly more realistic packing structure than none at all. [less ▲]

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See detailNew Insights into Pervaporation Mass Transport under Increasing Downstream Pressure Conditions: Critical Role of Inert Gas Entrance.
Vallières, Cécile; Favre, Eric; Roizard, Denis et al

in Industrial & Engineering Chemistry Research (2001), 40

The influence of the total downstream pressure on the pervaporation flux of a pure compound through a dense polymer membrane has been the subject to controversial debates recently. Experimental arguments ... [more ▼]

The influence of the total downstream pressure on the pervaporation flux of a pure compound through a dense polymer membrane has been the subject to controversial debates recently. Experimental arguments in favor of either the solution−diffusion model or the newly proposed pore-flow model are alternatively reported on different systems. To critically reexamine this debate, an experimental study under controlled downstream conditions has been performed for pure methanol and pure 2-propanol pervaporation through a poly(dimethylsiloxane) film, the latter having been previously reported to follow pore-flow model predictions. It is shown that a rational analysis of the effects of the downstream pressure on the results can be achieved according to the classical solution−diffusion model, provided that the influence of air leaks in the installation is properly taken into account. Based on this observation, the implications of an inert gas contribution, generally speaking, on pervaporation operation are discussed. [less ▲]

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