Modelling liquefied-natural-gas processes using highly accurate property models

Florian Dauber and Roland Span

Applied Energy, 2012, vol. 97, issue C, 822-827

Abstract: Accurate simulations are important for efficient design and operation of a process. Therefore, a precise representation of thermophysical properties using an adequate property model is necessary. The GERG-2008 by Kunz and Wagner [1] is the new reference equation of state for natural gases consisting of up to 21 specific compounds. It describes the gas and liquid phase as well as the super-critical region and the vapour–liquid equilibrium. In order to model LNG processes with the highest accuracy available, software available for the new equation is implemented into various common simulation tools. To ensure stable and consistent simulations, the GERG-2008 Property Package has been developed, which meets the CAPE-OPEN standard. The influence of property models on the simulation of the most important processes of the LNG value chain is investigated. Results show the expected advantages in accuracy for simulations using the new property model.

Keywords: GERG-2008; Vapourisation; CAPE-OPEN; Liquefied natural gas; Liquefaction; Transport (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (7)

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DOI: 10.1016/j.apenergy.2011.11.045

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