Performance Prediction of the Centrifugal Compressor Based on a Limited Number of Sample Data

Joint Authors

Jiang, Hongsheng
Dong, Sujun
Liu, Zheng
He, Yue
Ai, Fengming

Source

Mathematical Problems in Engineering

Issue

Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2019-10-20

Country of Publication

Egypt

No. of Pages

13

Main Subjects

Civil Engineering

Abstract EN

Centrifugal compressor is widely used in various engineering domains, and predicting the performance of a centrifugal compressor is an essential task for its conceptual design, optimization, and system simulation.

For years, researchers seek to implement this mission through various kinds of methods, including interpolation, curve fitting, neural network, and other statistics-based algorithms.

However, these methods usually need a large amount of data, and obtaining data may cost considerable computing or experimental resources.

This paper focuses on constructing the performance maps of pressure ratio and isentropic efficiency using a limited number of sample data while maintaining accuracy.

Firstly, sample data are generated from simulation using Vista CCD.

Then, corrected flow rate and corrected rotational speed are used as independent variables, and the regression expressions with physical meaning of pressure ratio and isentropic efficiency are derived and simplified through thermodynamic analysis and loss analysis of centrifugal compressor, resulting in two loss-analysis-based models.

Meanwhile, kriging models based on a second-order polynomial and neural network models are built.

Results show that, when predicting inside data boundary, the loss-analysis-based model and the kriging model produce higher accuracy prediction even in a small data set, and the predicting result is stable, while the neural network model provides better results only in a more extensive data set with more speed lines.

For the prediction outside the data boundary, the loss-analysis-based model can provide relatively accurate results.

Besides, it takes less time to train and utilize a loss-analysis-based model than other models.

American Psychological Association (APA)

Jiang, Hongsheng& Dong, Sujun& Liu, Zheng& He, Yue& Ai, Fengming. 2019. Performance Prediction of the Centrifugal Compressor Based on a Limited Number of Sample Data. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1196295

Modern Language Association (MLA)

Jiang, Hongsheng…[et al.]. Performance Prediction of the Centrifugal Compressor Based on a Limited Number of Sample Data. Mathematical Problems in Engineering No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1196295

American Medical Association (AMA)

Jiang, Hongsheng& Dong, Sujun& Liu, Zheng& He, Yue& Ai, Fengming. Performance Prediction of the Centrifugal Compressor Based on a Limited Number of Sample Data. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1196295

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1196295