NDLI: An Optimization Method for Centrifugal Compressor Design Using the Surrogate Management Framework

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Ha, Kyoung Ku Kang, Shin Hyoung
Copyright Year	2011
Abstract	A variety of centrifugal compressors are used in various fields of industry these days. The design requirements are more complicated, and it is difficult to determine the optimal design point of a centrifugal compressor. The aim of this study was to propose an efficient optimization method for centrifugal compressors considering the impeller, the vaneless diffuser, and the overhung type volute. The optimization was performed using the surrogate management framework (SMF). The design parameters were the impeller exit radius, the exit blade angle, and the flow coefficient. Sample points in the design space were selected according to the Design of Experiments (DoE) theory. The CFD simulations were executed on the impeller and the diffuser at every sampled point. The volutes were described using a one-dimensional but reliable theory to reduce the simulation time. An approximation model based on the Kriging method was constructed using this dataset. Then, an optimal design point that minimized the objective function was determined in a substitute design space using the pattern search method because of its efficiency and rigorous convergence. The optimization process, underlying methods, and results are described in this paper.
Sponsorship	Fluids Engineering Division
Starting Page	679
Ending Page	684
Page Count	6
File Format	PDF
ISBN	9780791844403
DOI	10.1115/AJK2011-22036
Volume Number	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
Conference Proceedings	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
Language	English
Publisher Date	2011-07-24
Publisher Place	Hamamatsu, Japan
Access Restriction	Subscribed
Subject Keyword	Design Vaneless diffusers Approximation Simulation Blades Computational fluid dynamics Experimental design Impellers Compressors Diffusers Flow (dynamics) Optimization
Content Type	Text
Resource Type	Article

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