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Identification of heat exchanger qad model BDT 921 based on hammerstein-wiener model

Mulyana, Tatang and Mohd Than, Mohd Nor and Mustapha, Noor Adzmira (2011) Identification of heat exchanger qad model BDT 921 based on hammerstein-wiener model. In: International Seminar on the Application of Science and Mathematics 2011, 1 - 3 November 2011, Putra World Trade Centre, Kuala Lumpur.

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Abstract

Heat exchanger is widely used in the process industries and in others area that it is a p lant that is used to change the temperature distribution of two fluids, particularly in process industries. A heat exchanger which it is called Heat Exchanger QAD Model BDT 921 is real system that it is installed in the Control Laboratory in University Tun Hussein Onn Malaysia (UTHM) and there is a shell and tube type heat exchanger where identification of this system is not yet determined, so the background for this paper to purpose to develop a system identification that used to ensure the capability and performance of the heat exchanger based on real data. Ha mmersteinwiener model as a method in order to get the mathematic modelling of dynamic system where the process of the identification is requires select model structure, choice of criterion to fit, parameter estimation and model validation. The estimation algorith m is using linear least s quare method and model validation use means square error method. The simu lation output will be compared with actual data to estimation and validate by using m-file MATLAB program. Th is simu lation get to process 1000 data collected which it is got of the graph experiment resulted where half of data for parameter estimation and half another of data for model validation. Model simu lated to analyses to determine of the plant performance such as loss function (LF), final prediction error (FPE), mean square error (MSE) and percentages of model f it (%MF). The best model is chosen based on fitting which it has value approximate to 100%. In this paper, a new system identification algorith m is developed to purpose to determine perfor mance of the shell and tube heat exchanger could be further analysed and improved. The technique developed in this paper could also be generally and applicable for develop ment and validation of other heat exchanger system models.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Hammerstein-wiener model; heat exchanger; m-file MATLA B program; linear least square; means square error; loss function; final prediction error, percentages of model fit
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ255-265 Heat engines
Divisions: Faculty of Electrical and Electronic Engineering > Department of Robotic and Mechatronic Engineering
Depositing User: M.Iqbal Zainal A
Date Deposited: 20 Feb 2012 04:36
Last Modified: 20 Feb 2012 04:36
URI: http://eprints.uthm.edu.my/id/eprint/2367
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