Detection methods of fouling in heat exchangers in the food industry

E Wallhäußer, MA Hussein, T Becker - Food Control, 2012 - Elsevier
Fouling is unwanted deposit on a (heat transfer) surface. In food and dairy industry it is a
major problem because heat transfer to the product is decreased resulting in reduced …

Finite-Time Tracking Control of a Flexible Link Manipulator Based on an Extended State Observer

F **g, C Ma, M **e, F Wang, Y Cao, X Fan - Applied Sciences, 2023 - mdpi.com
In this paper, the finite-time trajectory tracking control problem of a flexible link manipulator
(FLM) system with unknown parameters is investigated in joint space. An adaptive …

A model-based method for visualization, monitoring, and diagnosis of fouling in heat exchangers

E Diaz-Bejarano, F Coletti… - Industrial & Engineering …, 2020 - ACS Publications
A critical review of current methods for monitoring the performance of heat exchangers in the
presence of fouling highlights a number of pitfalls. An improved analysis method and …

On the usage of acoustic properties combined with an artificial neural network–A new approach of determining presence of dairy fouling

E Wallhäußer, WB Hussein, MA Hussein… - Journal of Food …, 2011 - Elsevier
Fouling and cleaning in heat exchangers are severe and costly issues in food processing. In
this study, a new pattern recognition method for detecting fouling on stainless steel is …

[HTML][HTML] Data-driven fuzzy models for nonlinear identification of a complex heat exchanger

H Habbi, M Kidouche, M Zelmat - Applied Mathematical Modelling, 2011 - Elsevier
This paper presents and discusses experimental results on nonlinear model identification
method applied to a real pilot thermal plant. The aim of this work is to develop a moderately …

Development of a Numerical Model for a Compact Intensified Heat-Exchanger/Reactor

M He, Z Li, X Han, M Cabassud, B Dahhou - Processes, 2019 - mdpi.com
A heat-exchanger/reactor (HEX reactor) is a kind of plug-flow chemical reactor which
combines high heat transfer ability and chemical performance. It is a compact reactor …

Bounded positive control for double-pipe heat exchangers

A Zavala-Río, CM Astorga-Zaragoza… - Control Engineering …, 2009 - Elsevier
In this work, an outlet temperature control scheme for double-pipe heat exchangers is
proposed. Compared to previously proposed approaches, the algorithm developed here …

Fault estimation for descriptor linear systems based on the generalised dynamic observer

G Osorio-Gordillo, C Astorga-Zaragoza… - … Journal of Systems …, 2018 - Taylor & Francis
An observer-based method for actuator fault estimation for descriptor systems is presented.
An innovative generalised dynamic observer for descriptor systems is synthesised to …

Determination of cleaning end of dairy protein fouling using an online system combining ultrasonic and classification methods

E Wallhäußer, A Sayed, S Nöbel, MA Hussein… - Food and Bioprocess …, 2014 - Springer
Fouling and cleaning of heat exchangers in food industry are severe and costly issues and
of high importance. In this study, a planar heat exchanger was constructed to produce and …

Sensor fault compensation via software sensors: Application in a heat pump's helical evaporator

RF Escobar, CM Astorga-Zaragoza… - … Research and Design, 2015 - Elsevier
This work presents a sensor fault compensation system, applied to a heat pump's helical
evaporator. The mathematical model of the evaporator is given by algebraic and differential …