DocumentCode :
2543118
Title :
Inverse estimation for the thermal boundary conditions of conjugate heat transfer using decentralized fuzzy inference method
Author :
Luo, Zhaoming ; Chen, Hong ; Wang, Guangjun
Author_Institution :
Sch. of Power Eng., Chongqing Univ., Chongqing, China
fYear :
2012
fDate :
29-31 May 2012
Firstpage :
457
Lastpage :
461
Abstract :
A decentralized fuzzy inference method (DFIM) for estimating the heat flux distribution of a heated cylinder experiencing the conjugate heat transfer is proposed in this study. The deviations between the computed and measured temperature at each measurement points are taken as the input parameters of a set of fuzzy inference units (FIUs), and the corresponding fuzzy inference components of measured information are obtained by the FIUs. According to the importance of the various measured information, the fuzzy inference components then are weighted and synthesized to gain the compensations of the guessed heat flux distribution. Ultimately, the prediction of the heat flux is accomplished. Numerical tests are performed to study the effect of initial guessed heat flux, measurement point numbers and measurement errors on the estimated results. The validity and superiority can be concluded by comparing with the conjugate gradient method (CGM).
Keywords :
conjugate gradient methods; fuzzy reasoning; heat transfer; power engineering computing; shapes (structures); CGM; DFIM; FIU; conjugate gradient method; conjugate heat transfer; decentralized fuzzy inference method; fuzzy inference units; heat flux distribution; heated cylinder; inverse estimation; thermal boundary conditions; Estimation; Heat transfer; Heating; Inverse problems; Measurement errors; Measurement uncertainty; Temperature measurement; fuzzy inference; inverse problem; thermal boundary behavior;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Fuzzy Systems and Knowledge Discovery (FSKD), 2012 9th International Conference on
Conference_Location :
Sichuan
Print_ISBN :
978-1-4673-0025-4
Type :
conf
DOI :
10.1109/FSKD.2012.6233835
Filename :
6233835
Link To Document :
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