Customization and validation of a commercial process simulator for dynamic simulation of Helium liquefier

被引：39

作者：

Dutta, Rohan ^{[1
]}

Ghosh, Parthasarathi ^{[1
]}

Chowdhury, Kanchan ^{[1
]}

机构：

[1] Indian Inst Technol IIT Kharagpur, Cryogen Engn Ctr, Kharagpur 721302, W Bengal, India

来源：

ENERGY | 2011年 / 36卷 / 05期

关键词：

Dynamic modeling and simulation; Aspen Hysys (R); Parameter estimation; Helium liquefier;

D O I：

10.1016/j.energy.2011.03.009

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Dynamic simulation of helium plants using Aspen Hysys (R), V7.0 has been validated using cool-down temperature data from two existing helium plants under operation. Fluid properties of helium using 32-term MBWR EOS are found to be numerically unstable and Hepak (R) data has been fed as a table. Metal properties in Aspen Hysys (R) do not have temperature dependence and NIST data has been attached. Expansion engine and turbine characteristic equations also have been successfully incorporated into the process simulator. Unknown plant parameters have been estimated using Least Square Deviation method. The simulation results match closely with the real plant data after these customization and parameter estimations. A real time factor between 8 and 14 has been achieved. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：3204 / 3214

页数：11

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