Publications related to Model predictive control and dynamic operability studies in a stirred tank: rapid temperature cycling for crystallization

Global Fan Speed Control Considering Non-Ideal Temperature Measurements in Enterprise Servers

David Atienza Alonso, Mohamed Mostafa Sabry Aly, Jungsoo Kim

Time lag and quantization in temperature sensors in enterprise servers lead to stability concerns on existing variable fan speed control schemes. Stability challenges become further aggravated when multiple local controllers are running together with the f ...

IEEE/ACM Press2014

Heat Management for Process Intensification of Fast Exothermic Reactions in Microstructured Reactors

Julien Haber

Nowadays, the production in fine chemical and pharmaceutical industry is mostly carried out in large scale batch reactors having typically dimensions of a few meters to satisfy the demand of the market. Even though this technology has been widely used and ...

EPFL2013

Multi-Parametric Toolbox 3.0

Colin Neil Jones

The Multi-Parametric Toolbox is a col- lection of algorithms for modeling, control, analysis, and deployment of constrained optimal controllers developed under Matlab. It features a powerful ge- ometric library that extends the application of the toolbox b ...

2013

Effect of hot spots in microstructured reactors on product distribution during quasi-instantaneous exothermic reactions

Albert Renken, John Richard Thome, Lioubov Kiwi, Thomas Maeder, Navid Borhani, Bo Jiang, Julien Haber

Background. The small characteristic sizes (in the range of 102 - 103 μm) of Microstructured reactors (MSR) lead to very high specific interfacial area which, in turn, increases heat- and mass transfer efficiency. However, for quasi instantaneous exothermi ...

2013

A multiresolution approximation method for fast explicit model predictive control

Colin Neil Jones

A model predictive control law is given by the solution to a parametric optimization problem that can be pre- computed offline and provides an explicit map from state to control input. In this paper, an algorithm is introduced based on wavelet multiresolut ...

Institute of Electrical and Electronics Engineers2011

Thermal-Aware Workload Scheduling for Energy Efficient Data Centers

Nedeljko Vasic

Increasing heat dissipation density is becoming a limiting factor in air-cooled data centers. The main control objective in data center thermal management is to keep the temperature of all the data processing equipment below a certain threshold and at the ...

2010

“Sandwich Reactor” for Heterogeneous Catalytic Processes: N2O Decomposition as a Case Study

Albert Renken, Lioubov Kiwi, Bryan Bromley

A novel “sandwich” microreactor designed as a thin (∼ 300

\mu

m) porous plate of sintered metal fibers (SMF), sandwiched between metallic plates is reported. The SMF surface was coated by Fe-ZSM-5 thin film (< 2

\mu

m) rendering a catalyst highly active ...

2008

Neighboring extremals in optimization and control

Sébastien Gros

Optimization arises naturally when process performance needs improvement. This is often the case in industry because of competition – the product has to be proposed at the lowest possible cost. From the point of view of control, optimization consists in de ...

EPFL2007

Robust Predictive Control Based on Neighboring Extremals

Dominique Bonvin, Sébastien Gros

The performance of a predictive controller is typically poor when the true plant evolution deviates significantly from that predicted by the model. A robust control approach that considers model uncertainty explicitly is then needed. However, it is often d ...

2006

Scale-down approach

This thesis deals with the combined utilisation of a reaction calorimeter, the RC1® commercialised by Mettler Toledo and equipped with a 2 L glass reactor, and the heat transfer dynamics modelling of industrial reactors. By doing so, the temperature evolut ...

EPFL2006

Model predictive control and dynamic operability studies in a stirred tank: rapid temperature cycling for crystallization

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Global Fan Speed Control Considering Non-Ideal Temperature Measurements in Enterprise Servers

Heat Management for Process Intensification of Fast Exothermic Reactions in Microstructured Reactors

Multi-Parametric Toolbox 3.0

Effect of hot spots in microstructured reactors on product distribution during quasi-instantaneous exothermic reactions

A multiresolution approximation method for fast explicit model predictive control

Thermal-Aware Workload Scheduling for Energy Efficient Data Centers

“Sandwich Reactor” for Heterogeneous Catalytic Processes: N2O Decomposition as a Case Study

Neighboring extremals in optimization and control

Robust Predictive Control Based on Neighboring Extremals

Scale-down approach

Multi-Parametric Toolbox 3.0

Scale-down approach

A multiresolution approximation method for fast explicit model predictive control

Global Fan Speed Control Considering Non-Ideal Temperature Measurements in Enterprise Servers

Robust Predictive Control Based on Neighboring Extremals

Effect of hot spots in microstructured reactors on product distribution during quasi-instantaneous exothermic reactions

“Sandwich Reactor” for Heterogeneous Catalytic Processes: N2O Decomposition as a Case Study

Heat Management for Process Intensification of Fast Exothermic Reactions in Microstructured Reactors

Thermal-Aware Workload Scheduling for Energy Efficient Data Centers

Neighboring extremals in optimization and control