388832 Interval-Analysis-Based Determination of Globally Optimal Total Annualized Cost for Compressor Sequences

Tuesday, November 18, 2014: 10:10 AM
401 - 402 (Hilton Atlanta)
Jeremy A. Conner, Chemical & Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA and Vasilios Manousiouthakis, Chemical & Biomolecular Engineering Department,, University of California Los Angeles, Los Angeles, Los Angeles, CA

In this work, the minimum total annualized cost (TAC) problem is studied for a series of non-isentropic compressors and coolers that brings a gas with constant compressibility factor from a specified initial pressure and temperature to a specified final pressure and the same temperature. For constant heat capacity, constant compressibility factor gases, additional properties of the globally optimal compressor sequence are analytically established. These properties permit development of an interval-analysis-based solution strategy that identifies compressor configurations yielding the globally-minimum TAC for varying network outlet pressures. Several case studies are presented to illustrate the developed theorems and solution strategy.

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