Adaptive PLS inferential soft sensor for continuous online estimation of NOx emission in industrial water-tube boiler

Hasnen, S.H. and Zabiri, H. and Prakash, K.K. and Mat, T.T. (2019) Adaptive PLS inferential soft sensor for continuous online estimation of NOx emission in industrial water-tube boiler. In: UNSPECIFIED.

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Abstract

In common industrial application, the use of a linear and static PLS soft sensor for online prediction and monitoring of industrial boiler is often preferred due to its simple and intuitive framework. However, process dynamics and time-variant factors can negatively affect the accuracy and reliability of PLS soft sensor over its long-term application in process industries. In this paper, development of adaptive soft sensor based on dynamic PLS method has been applied to an industrial water-tube boiler for continuous online prediction of Nitric Oxides emission. In the case study, it is found that the adaptive PLS soft sensor which includes lagged measurements of NOx emission in the model input can significantly improve the prediction accuracy and reliability by 72.7 relative to the performance of linear and static PLS soft sensor when tested on online dataset containing gradual and abrupt changes in the process operating conditions. © Published under licence by IOP Publishing Ltd.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Impact Factor: cited By 1
Uncontrolled Keywords: Boilers; Forecasting; Nitric oxide; Nitrogen oxides, Adaptive soft-sensor; Continuous on-line estimations; Industrial boilers; Industrial water; Online prediction; Operating condition; Prediction accuracy; Process dynamics, Industrial emissions
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 27 Aug 2021 08:25
Last Modified: 27 Aug 2021 08:25
URI: http://scholars.utp.edu.my/id/eprint/24827

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