Michael descamps

Atomic Energy and Alternative Energies Commission | CEA

In this paper, we present a novel research software, called PEGASE, suitable for the design, validation and deployment of advanced control strategies for complex multi-domain energy systems. PEGASE especially features a highly efficient co-simulation engine, together with integrated solutions for defining both rule-based control strategies and Mode...

This study focuses on operational control strategies for a multi-energy District Heating Network (DHN). Two control strategies are investigated and compared: (i) a reactive Rule-Based Control (RBC) and (ii) a Model-Predictive Control (MPC). For the purpose of the study a small scale district heating network is modelled using Modelica. The productio...

Management of increasingly complex, multi-vector, district energy systems, operated by separate stakeholders, including prosumers, is a vital challenge to overcome in a fragmented energy landscape. The complex value chain involved forms a cognitive virtual network with the shared objective to reduce energy consumption, greenhouse gas emissions and...

This work contributes to the development of a multi-vector flexibility management platform, combining electric, heat and gas optimization at district level. The multi-vector flexibility management platform will be validated both experimentally and by simulation, on a set of demonstration scenarios. Each scenario refers to an eco-district topology w...

Workshop organized by INDIGO project as a collaborative activity among EU funded projects in the area of District Heating and Cooling. The objective of the workshop was twofold: (1) to create a cluster of European funded projects working in the area of District Energy Systems; and (2) to create a networking opportunity in which to share experiences...

A hand-held formaldehyde (HCHO) gas detector has been developed. This fluorescence-based system uses a standard microscope glass slide both as a transducer and a sensor. The detection of gaseous formaldehyde is performed using the well-known Sawicki reaction with Fluoral-P, a reagent present in the nanoporous thin film which allows a selective reac...

A hand-held formaldehyde (HCHO) gas detector has been developed. This fluorescence-based system uses a standard microscope glass slide both as a transducer and a sensor. The selective detection of gaseous formaldehyde is performed using the well-known Hantzsch reaction with Fluoral-P, which is chosen as a reagent. The sensor consists of a nanoporou...

We have investigated the atomisation of a thick liquid film by high speed co-flowing gas jet. The study is focused on the mechanisms controlling the drop spatial distribution downstream injec-tion. These results are needed for properly initializing two-fluid euler-euler [1] or lagrangian [2] simulations. Measurements of the drop characteristics (co...

This study deals with the influence of bubbles on a vertical air–water pipe flow, for gas-lift applications. The effect of changing the bubble size is of particular interest as it has been shown to affect the pressure drop over the pipe. Local measurements on the bubbles characteristics in the wall region were performed, using standard techniques,...

Laboratory experiments have been performed on the flow of oil, water and air through a vertical pipe in order to study the gas-lift technique for oil–water flows. Special attention was paid to the phase inversion phenomenon, by which the continuous phase switches to the dispersed phase and vice versa. By using different types of gas injectors the i...

An experimental study has been made of the interactions between air bubbles and an oil-water mixture flowing through a vertical tube. Particular attention was paid to the influence on the critical concentration of oil where phase inversion occurs and on the pressure drop increase during phase inversion. It was found that gas injection does not sign...

An experimental study has been made of the influence of gas injection on the phase inversion between oil and water flowing through a vertical tube. Particular attention was paid to the influence on the critical concentration of oil and water where phase inversion occurs and on the pressure drop increase over the tube during phase inversion. By usin...

Westerly wind bursts and Madden and Julian Oscillations have been sugessted to play an important role in the onset of ENSO through a rectification of the low-frequency coupled variability. We assess that the scale interaction between high-frequency wind variability and ENSO does not reduce to these specific atmospheric events. Indeed, we demonstrat...