A hybrid dynamic condenser model for transient analysis and model-based controller design
In this paper, a hybrid modeling approach is proposed to describe the dynamic behavior of the two phase flow condensers used in air-conditioning and refrigeration systems. The model is formulated based on fundamental energy and mass balance governing equations, and thermodynamic principles, while so...
Saved in:
Main Authors: | , , , |
---|---|
Other Authors: | |
Format: | Conference or Workshop Item |
Language: | English |
Published: |
2013
|
Online Access: | https://hdl.handle.net/10356/98953 http://hdl.handle.net/10220/12868 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-98953 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-989532020-03-07T13:24:49Z A hybrid dynamic condenser model for transient analysis and model-based controller design Ding, Xudong Duan, Peiyong Cai, Wenjian Yan, Jia School of Electrical and Electronic Engineering IEEE Conference on Industrial Electronics and Applications (7th : 2012 : Singapore) In this paper, a hybrid modeling approach is proposed to describe the dynamic behavior of the two phase flow condensers used in air-conditioning and refrigeration systems. The model is formulated based on fundamental energy and mass balance governing equations, and thermodynamic principles, while some constants and less important variables that change very little during normal operation, such as cross-sectional areas, mean void fraction, the derivative of the saturation enthalpy with respect to pressure, etc., are lumped into several unknown parameters. These parameters are then obtained by experimental data using least squares identification method. The proposed modeling method takes advantages of both physical and empirical modeling approaches, can accurately predict the transient behaviors in real-time and significantly reduce the computational burden. Other merits of the proposed approach are that the order of the model is very low and all the state variables can be easily measured. These advantages make it easy to be applied to model based control system design. The model validation studies on an experimental system show that the model predicts the system dynamic well. 2013-08-02T03:58:22Z 2019-12-06T20:01:27Z 2013-08-02T03:58:22Z 2019-12-06T20:01:27Z 2012 2012 Conference Paper Ding, X., Duan, P., Cai, W., & Yan, J. (2012). A hybrid dynamic condenser model for transient analysis and model-based controller design. 2012 7th IEEE Conference on Industrial Electronics and Applications (ICIEA), 1124 - 1129. https://hdl.handle.net/10356/98953 http://hdl.handle.net/10220/12868 10.1109/ICIEA.2012.6360892 en |
institution |
Nanyang Technological University |
building |
NTU Library |
country |
Singapore |
collection |
DR-NTU |
language |
English |
description |
In this paper, a hybrid modeling approach is proposed to describe the dynamic behavior of the two phase flow condensers used in air-conditioning and refrigeration systems. The model is formulated based on fundamental energy and mass balance governing equations, and thermodynamic principles, while some constants and less important variables that change very little during normal operation, such as cross-sectional areas, mean void fraction, the derivative of the saturation enthalpy with respect to pressure, etc., are lumped into several unknown parameters. These parameters are then obtained by experimental data using least squares identification method. The proposed modeling method takes advantages of both physical and empirical modeling approaches, can accurately predict the transient behaviors in real-time and significantly reduce the computational burden. Other merits of the proposed approach are that the order of the model is very low and all the state variables can be easily measured. These advantages make it easy to be applied to model based control system design. The model validation studies on an experimental system show that the model predicts the system dynamic well. |
author2 |
School of Electrical and Electronic Engineering |
author_facet |
School of Electrical and Electronic Engineering Ding, Xudong Duan, Peiyong Cai, Wenjian Yan, Jia |
format |
Conference or Workshop Item |
author |
Ding, Xudong Duan, Peiyong Cai, Wenjian Yan, Jia |
spellingShingle |
Ding, Xudong Duan, Peiyong Cai, Wenjian Yan, Jia A hybrid dynamic condenser model for transient analysis and model-based controller design |
author_sort |
Ding, Xudong |
title |
A hybrid dynamic condenser model for transient analysis and model-based controller design |
title_short |
A hybrid dynamic condenser model for transient analysis and model-based controller design |
title_full |
A hybrid dynamic condenser model for transient analysis and model-based controller design |
title_fullStr |
A hybrid dynamic condenser model for transient analysis and model-based controller design |
title_full_unstemmed |
A hybrid dynamic condenser model for transient analysis and model-based controller design |
title_sort |
hybrid dynamic condenser model for transient analysis and model-based controller design |
publishDate |
2013 |
url |
https://hdl.handle.net/10356/98953 http://hdl.handle.net/10220/12868 |
_version_ |
1681043185189519360 |