Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20715
Title: Calculating method for the conduction z-transfer functions of multilayer walls based on system identification
Authors: Chen, YM
Zhou, J
Wang, SW 
Keywords: FDR method
Heat conduction
Multilayer wall
System identification
Z-transfer-function
Issue Date: 2004
Publisher: 湖南大学出版社
Source: 湖南大学学报. 自然科学版 (Journal of Hunan University. Naturnal science), 2004, v. 31, no. 5, p. 82-87 How to cite?
Journal: 湖南大学学报. 自然科学版 (Journal of Hunan University. Naturnal science) 
Abstract: Frequency domain regression (FDR) method was developed to calculate z-transfer functions of multilayer walls. This method is based on the theoretical frequency characteristics of transient heat conduction through a multiplayer wall to estimate a simple polynomial s-transfer function. The simple polynomial s-transfer function is equivalent to the hyperbolic s-transfer function of the wall in terms of frequency characteristics. First, the frequency characteristics of transient heat conduction of the wall were calculated within the frequency range concerned. Then, a set of linear equations was solved to yield a simple polynomial s-transfer function for internal, cross and external heat conduction. Finally, z-transfer functions were obtained by applying z-transforms on the time-domain response of the polynomial z-transfer function. The comparisons and validations show that this method is simple, efficient, fast and accurate.
URI: http://hdl.handle.net/10397/20715
ISSN: 1000-2472
EISSN: 1674-2974
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