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http://dx.doi.org/10.7316/KHNES.2019.30.2.188

Comparative Study between Single-stage and Two-stage Expansion Using LNG Cold Heat  

NOH, SANGGYUN (Department of Chemical & Biomolecular Engineering, Dongyang University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.30, no.2, 2019 , pp. 188-192 More about this Journal
Abstract
Comparative studies between single- and two-stage expansion process using LNG cold heat have been performed for a closed Rankine power generation cycle. PRO/II with PROVISION release 10.0 from Schneider Electric Company was used, and the Peng-Robinson equation of state model with Twu's alpha function was selected for the modeling and optimization of the power generation cycle using LNG cold heat. In two-stage power generation cycle, 6.7% more power was obtained compared to that of single-stage power generation cycle through the optimization works.
Keywords
Cold heat; Liquefied natural gas; Power generation cycle; Computer simulation; Optimization;
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  • Reference
1 S. I. Sandler, "Chemical, Biochemical, and Engineering Thermodynamics", 4th ed., John Wiley & Sons, Inc., USA, 2006, pp. 4-5.
2 J. H. Cho, "Energy Saving Through Process Improvement, $CO_2$ Capture and Unutilized Energy Utilization Technology", A-JIN, Korea, 2018, pp. 165-178.
3 J. H. Cho, J. G. Park, S. T. Kim, "Simulation of Chemical Process Using Pro/II with PROVISION", A-JIN, Korea, 2004, pp. 49-61.
4 Y. D. Peng and D. B. Robinson, "A New Two-Constant Equation of State", Ind. and Eng. Chem. Fund. Vol. 15, No. 1, 1976, pp. 59-64, doi: https://doi.org/10.1021/i160057a011.   DOI
5 G. M. Kontogeorgis and G. K. Folas, "Thermodynamic Models for Industrial Applications", John Wiley & Sons, Inc., USA, 2009, pp. 41-42, doi: https://doi.org/10.1002/9780470747537.
6 C. H. Twu, D. Bluck, J. R. Cunningham, and J. E. Coon, "A Cubic Equation of State with a New Alpha Function and a New Mixing Rule", Fluid Phase Equilib., Vol. 69, 1991, pp. 33-50, doi: https://doi.org/10.1016/0378-3812(91)90024-2.   DOI
7 J. M. Smith, H. C. Van Ness, M. M. Abbott, and M. T. Swihart, "Introduction to Chemical Engineering Thermodynamics", 8th ed., McGraw-Hill Higher Education, USA, 2018, pp. 1-4.