References of "Hennaut, Samuel"
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See detailDynamic simulations of solar combisystems integrating a seasonal sorption storage: Influence of the combisystem configuration
Hennaut, Samuel ULg; Thomas, Sébastien ULg; Davin, Elisabeth ULg et al

in Strojarstvo: Journal for Theory and Application in Mechanical Engineering (2012, December), 54(6), 433-440

This paper focuses on the sizing of solar combisystems with adsorption seasonal storage to target autonomous solar space heating. Two main configurations of the combisystem are simulated, including one or ... [more ▼]

This paper focuses on the sizing of solar combisystems with adsorption seasonal storage to target autonomous solar space heating. Two main configurations of the combisystem are simulated, including one or two tanks. The influence of the seasonal storage on the sizing of the tanks is also discussed. Results show that performances of the system with two tanks are better (2 to 4 % with seasonal storage) but some improvements should be possible for the single tank configuration. The sizing of the sensible storage is nearly independent of the solar collectors area if there is a seasonal storage. The sensible storage size increase with the collectors area without adsorption storage. The analysis is conducted in simulation using the TRNSYS program. [less ▲]

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See detailModelling of solar thermo-chemical system for energy storage in buildings
Skrylnyk, Alexandre; Courbon, Emilie; Frère, Marc et al

in Proceedings of Innostock 2012 - The 12th International Conference on Energy Storage - 16th to 18 th May 2012 (2012, May)

The goal of this paper is the demonstration of the methodological design principles within theoretical modelling of thermal heat storage apparatus and simulation of inter-seasonal heat storage system. The ... [more ▼]

The goal of this paper is the demonstration of the methodological design principles within theoretical modelling of thermal heat storage apparatus and simulation of inter-seasonal heat storage system. The designing procedure starts from the modelling of thermal plant behaviour, based on the simplifications in the basic hypothesis. Afterwards, a more detailed modelling, involving dynamic aspects and additional features of plant components, is presented. The accomplishment of the designing procedure follows by the optimisation of key parameters of the thermal storage plant. [less ▲]

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See detailExperimentation and Simulation of a Small-Scale Adsorption Cooling System in Temperate Climate
Thomas, Sébastien ULg; Hennaut, Samuel ULg; Maas, Stefan et al

in Energy Procedia (2012), 30

This paper focuses on the analysis of the operation of a solar cooling system based upon an adsorption chiller. The air-conditioned building studied is a laboratory located in a temperate climate region ... [more ▼]

This paper focuses on the analysis of the operation of a solar cooling system based upon an adsorption chiller. The air-conditioned building studied is a laboratory located in a temperate climate region (Belgium). The monitoring reveals thermal and electrical coefficient of performance (COP) of the cooling system for different time scale (10s to 1 month). The whole system including solar collectors, adsorption machine, recooling unit and hot storage is simulated. The models are then confronted to the measurements. Measurement period is shared between 2011 and 2012. Enhancements have been achieved during winter 2011 to have a more efficient system operation. The aim of this experimental work is to describe, for both measurement periods, the influence of operating conditions on the energy efficiency (thermal behavior and electrical consumption). On the simulation point of view, the main objective is to find accurate models for all the components. The adsorption chiller model is not yet precise enough to evaluate the performance of solar cooling in other conditions. [less ▲]

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See detailDynamic simulation of residential buildings with seasonal sorption storage of solar energy - parametric analysis
Hennaut, Samuel ULg; Thomas, Sébastien ULg; Davin, Elisabeth ULg et al

in ISES solar world congress 2011 - Proceedings (2011, August 28)

This work focuses on the evaluation of the performances of a solar combisystem coupled to seasonal thermochemical storage using SrBr2/H20 as adsorbent/adsorbate couple. The objective is to determine the ... [more ▼]

This work focuses on the evaluation of the performances of a solar combisystem coupled to seasonal thermochemical storage using SrBr2/H20 as adsorbent/adsorbate couple. The objective is to determine the characteristics required for solar system and storage reactor to reach a 100 % solar fraction for a building with a low heating load. The complete system, including the storage reactor, is simulated, using the dynamic simulation software TRNSYS. The influence of some components and parameters of the system is estimated: weather, collectors and storage reactor parameters. [less ▲]

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See detailPré-dimensionnement par simulations dynamiques d’un réacteur de stockage thermochimique assurant l’autonomie d’un système solaire combiné.
Hennaut, Samuel ULg; Thomas, Sébastien ULg; Andre, Philippe ULg et al

in Congrès Français de Thermique 2011 - Energie Solaire et Thermique - Perpignan - 24-27 Mai 2011 (2011, May 24)

Etude du stockage de l’énergie solaire thermique sous forme thermochimique comme moyen d’assurer l’autonomie thermique d’une habitation basse énergie. La surface de capteurs nécessaire et les ... [more ▼]

Etude du stockage de l’énergie solaire thermique sous forme thermochimique comme moyen d’assurer l’autonomie thermique d’une habitation basse énergie. La surface de capteurs nécessaire et les caractéristiques du stockage sont étudiées par simulation dynamique (TRNSYS), de manière générale et pour des couples adsorbant/adsorbat particuliers (CaCl2/H2O et Charbon actif/Méthanol). Un système solaire combiné avec 14,4 m² de capteurs plans et un stockage thermochimique de 12,35 m³ de CaCl2 permet d’assurer l’autonomie thermique d’une habitation « basse énergie » située en Belgique et une grande part de la production d’eau chaude sanitaire (ECS). [less ▲]

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See detailProcédure simple pour estimer les capacités de stockage de chaleur des systèmes solide/gaz : Application au stockage d’énergie solaire dans les bâtiments
Courbon, Emilie; Skrylnyk, Alexandre; Hennaut, Samuel ULg et al

in Récents Progrès en Génie des Procédés (2011), 101

The development of an autonomous solar heating system for individual houses using inter seasonal thermo-chemical storage assuring all the needs of heat and hot water relies on the appropriate choice of ... [more ▼]

The development of an autonomous solar heating system for individual houses using inter seasonal thermo-chemical storage assuring all the needs of heat and hot water relies on the appropriate choice of the sorbent/vapour pair. The selection of the working pair is of primary importance and the selection procedure rarely takes into account all the parameters of the global system (like solar collectors, heat distribution system, thermal needs of the building). We propose a selection procedure in three successive steps, the first one is only based on thermodynamic data (pressure and temperature conditions), the second one includes heat and mass balances on the storage for a one-year period and the third one simulates the global system including the thermal needs of the building. This procedure highlights several promising working pairs which offer thermal energy densities higher than 300 kWh/m³ of reactor, but also allows the optimization of the storage system parameters: for example a 12 m³ reactor filled with CaCl2 coupled to a 14m² surface area solar collector offers an energy density of nearly 200 kWh/m³ of reactor whereas the activated carbon/methanol pair reaches only 60 kWh/m³ of reactor with a 40m³ volume reactor and 13m² surface area solar collector. [less ▲]

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See detailCombination of experimental and simulated small scale solar air-conditioning system
Thomas, Sébastien ULg; Hennaut, Samuel ULg; Andre, Philippe ULg

in EUROSUN 2010, International conference on solar heating, cooling and buildings, 28 September - 1 October 2010, Graz, Austria (2010, October 01)

It is now clearly assumed that solar assisted air conditioning is able to decrease CO2 production of building operation. One way to evaluate the energy savings potential is the simulation of ... [more ▼]

It is now clearly assumed that solar assisted air conditioning is able to decrease CO2 production of building operation. One way to evaluate the energy savings potential is the simulation of airconditioning systems. On the other hand, it is also crucial to assess system performance by experimentations. The operation of a solar cooling system in its real environment is considered here. The objective is to evaluate if sun radiation in our region (Western Europe – Belgium) in summer 2009 is enough for feeding an adsorption chiller, in other words to find experimentally the solar fraction of a solar air-conditioning system in our region. Residential application suits with equipment available in our laboratory. A combination of experimentation and simulation is used because of the lack of sorption chiller in our laboratory facilities. Hot loops are measured while cold and rejection loops are simulated. Thirty-one days were measured; energy flows analysis on the whole period reveals a theoretical solar fraction of nearly 100% but a real solar fraction of 31%. Issues related to the test implementation are emphasized and explained in this paper. [less ▲]

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