References of "Sartor, Kevin"
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See detailSimulation and optimization of a CHP biomass plant and district heating network
Sartor, Kevin ULg; Quoilin, Sylvain ULg; Dewallef, Pierre ULg

in Applied Energy (2014), 130

Biomass Combined Heat and Power (CHP) plants connected to district heating (DH) networks are recognized nowadays as a very good opportunity to increase the share of renewable sources into energy systems ... [more ▼]

Biomass Combined Heat and Power (CHP) plants connected to district heating (DH) networks are recognized nowadays as a very good opportunity to increase the share of renewable sources into energy systems. However, as CHP plants are not optimized for electricity production, their operation is profitable only if a sufficient heat demand is available throughout the year. Most of the time, pre-feasibility studies are based on peak power demand and business plans only assume monthly or yearly consumption data. This approach usually turns out to overestimate the number of operating hours or oversize the plant capacity. This contribution presents a methodology intended to be simple and effective that provides accurate estimations of economical, environmental and energetic performances of CHP plants connected to district heating networks. A quasi-steady state simulation model of a CHP plant combined with a simulation model of the district heating network installed on the Campus of the University in Liège (Belgium) is used as an application framework to demonstrate the effectiveness of the selected approach. Based on the developed model and actual consumption data, several scenarios for energy savings are considered and ranked. The potential energy savings and resulting energy costs are estimated enabling more general conclusions to be drawn on the opportunity of using district heating networks in urban districts for Western Europe countries. [less ▲]

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See detailPrediction of SOx and NOx Emissions from a Medium Size Biomass Boiler Biomass and Bioenergy
Sartor, Kevin ULg; Restivo, Yannick ULg; Ngendakumana, Philippe ULg et al

in Biomass and Bioenergy (2014), 65

While small and medium size biomass combined heat and power (CHP) plants (i.e., up to 5 MW of electrical rated power) represent an attractive option to exploit locally available biomass resources at low ... [more ▼]

While small and medium size biomass combined heat and power (CHP) plants (i.e., up to 5 MW of electrical rated power) represent an attractive option to exploit locally available biomass resources at low cost, the corresponding investment per unit of rated power significantly rises when the installed power decreases. In these cases, secondary pollutant emissions control measures are most of the time not economically viable and primary emissions control must be used alone to avoid the formation of undesired compounds such as $NO_x$ and $SO_x$. Primary control measures require the careful optimization of fuel quality and combustion process. For plant operators, being able to accommodate biomass quality changes in order to minimize the fuel cost can be of great importance in order to guarantee the profitability of the plant. This contribution is dedicated to the development of a zero-dimensional (input-output) combustion simulation model able to predict the pollutants emissions resulting from complete and incomplete combustion with respect to varying combustion operation (ambient temperature, humidity, fumes recirculation,..). This tool is intended to be integrated in a global simulation model of the CHP plant and the attached district heating network installed on the University campus in Liège. Doing so, the plant operation can be optimized with respect to economic as well as environmental and energetic aspects (3E approach) thus ensuring the sustainability of the approach. [less ▲]

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See detailImproved District Heating Network Operation by the Integration of High Temperature Heat Pumps
Sartor, Kevin ULg; Lemort, Vincent ULg; Dewallef, Pierre ULg

in Digital proceedings of the 8th Conference on Sustainable Development of Energy, Water and Environment Systems - SDEWES (2013, September 23)

Biomass Combined Heat and Power (CHP) plants connected to district heating networks are a very good opportunity to increase the share of renewable sources into energy systems. Frequently, important ... [more ▼]

Biomass Combined Heat and Power (CHP) plants connected to district heating networks are a very good opportunity to increase the share of renewable sources into energy systems. Frequently, important consumers are connected to ensure a stable base demand of heat throughout the year but they often have higher requirements in terms of temperature (i.e., steam) which involves high level of temperatures in the district heating network during the whole year and high levels of heat losses in the network. This contribution presents the possibility to decrease the level of temperature at which the district heating network operates and to use high temperature heat pumps connected locally at the consumption point to produce steam when needed. An investigation of the global design and integration through thermodynamic simulation models is realized for the University of Liège district heating network. This study is intended to determine the heat pump coefficient of performance and, therefore, to assess the balance between the savings in terms of heat losses and the additional heat pump electricity consumption. [less ▲]

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See detailSimulation and optimization of a CHP biomass plant and district heating network
Sartor, Kevin ULg; Quoilin, Sylvain ULg; Dewallef, Pierre ULg

Conference (2013, July)

Biomass Combined Heat and Power (CHP) plants connected to district heating (DH) networks are recognized nowadays as a very good opportunity to increase the share of renewable sources into energy systems ... [more ▼]

Biomass Combined Heat and Power (CHP) plants connected to district heating (DH) networks are recognized nowadays as a very good opportunity to increase the share of renewable sources into energy systems. However, as CHP plants are not optimized for electricity production, their operation is profitable only if a sufficient heat demand is available throughout the year. Most of the time, pre-feasibility studies are based on peak power demand and business plans only assume monthly or yearly consumption data. This approach usually turns out to overestimate the number of operating hours or oversize the plant capacity. This contribution presents a methodology intended to be simple and effective that provides accurate estimations of economical, environmental and energetic performances of CHP plants connected to district heating networks. A quasi-steady state simulation model of a CHP plant combined with a simulation model of the district heating network installed on the Campus of the University in Liège (Belgium) is used as an application framework to demonstrate the effectiveness of the selected approach. Based on the developed model and actual consumption data, several scenarios for energy savings are considered and ranked. The potential energy savings and resulting energy costs are estimated enabling more general conclusions to be drawn on the opportunity of using district heating networks in urban districts for Western Europe countries. [less ▲]

Detailed reference viewed: 96 (12 ULg)
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See detailOptimization of the operating conditions of an existing biomass CHP plant with respect to pollutants levels
Sartor, Kevin ULg; Restivo, Yannick ULg; Ngendakumana, Philippe ULg et al

in Proceedings of 21st Biomass Conference and Exhibition (2013, June 03)

While small and medium size biomass combined heat and power plants (i.e., up to 5 MW of electrical rated power) represent an attractive option to exploit locally available biomass resources at low cost ... [more ▼]

While small and medium size biomass combined heat and power plants (i.e., up to 5 MW of electrical rated power) represent an attractive option to exploit locally available biomass resources at low cost, the corresponding investment per unit of rated power significantly rises when the installed power decreases. In these cases, secondary pollutant emissions control measures are most of the time not economically viable and primary emissions control must be used alone to avoid the formation of undesired compounds such as $NO_x$ and $SO_x$. Primary control measures require the careful optimization of fuel quality and combustion process. For plant operators, being able to accommodate biomass quality changes in order to minimize the fuel cost can be of great importance in order to guarantee the profitability of the plant. This contribution is dedicated to the development of zero-dimensional (input-output) combustion simulation model able to predict the pollutants emissions resulting from complete and incomplete combustion with respect to varying combustion operation (ambient temperature, humidity, fumes recirculation,..). This tool is intended to be integrated in global simulation model of the CHP plant and the attached district heating network installed on the University campus in Liège. Doing so, the plant operation can be optimized with respect to economic as well as environmental and energetic aspects (3E approach) thus ensuring the sustainability of the approach. [less ▲]

Detailed reference viewed: 53 (30 ULg)
See detailForcer l'avenir, alliances innovantes pour le développement durable - Écologie industrielle
Sartor, Kevin ULg; Huysmans, Hélène ULg; Corman, Marjorie

Conference given outside the academic context (2012)

En préparation au sommet Rio + 20, les étudiants du master en sciences de gestion à finalité en Management des entreprises sociales de l'Université de Liège organisent un colloque le 27 avril sur le thème ... [more ▼]

En préparation au sommet Rio + 20, les étudiants du master en sciences de gestion à finalité en Management des entreprises sociales de l'Université de Liège organisent un colloque le 27 avril sur le thème des alliances innovantes pour le développement durable. Quatre pistes seront évoquées, soit: - Alliance producteurs- consommateurs - Ecologie industrielle - Emplois verts et inclusion sociale - Organisations et dispositifs supports Les ministres de l'Economie, Jean-Claude Marcourt, et du Développement Durable, Jean-Marc Nollet seront présents. [less ▲]

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See detailThe use of liquid biofuels in heating systems: a review
Makaire, Danielle ULg; Sartor, Kevin ULg; Ngendakumana, Philippe ULg

Conference (2011, August)

European Union has set the 2020 strategy to increase the share of renewable energy use to 20% by 2020. Currently, most attention is focussed on the use of alternative fuels from biomass for energy ... [more ▼]

European Union has set the 2020 strategy to increase the share of renewable energy use to 20% by 2020. Currently, most attention is focussed on the use of alternative fuels from biomass for energy purposes. These alternative fuels are called bioliquids. This paper reviews the current experimental works that have been performed on the combustion of vegetable oil, biodiesel and bioethanol in various heating combustion units. This review focuses on the feasibility of bioliquids use in heating systems as well as their “environmental friendly” potential. [less ▲]

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See detailStudy of the feasibility of burning neat jatropha oil into a vaporizing burner for household applications
Makaire, Danielle; Fontaine, Jean-Marie; Sartor, Kevin ULg et al

in Biomass & Bioenergy (2011)

Charcoal is one of the major energy sources for household applications in urban areas of developing countries. It is often made from natural forest and accelerates forest depletion. The aim of this work ... [more ▼]

Charcoal is one of the major energy sources for household applications in urban areas of developing countries. It is often made from natural forest and accelerates forest depletion. The aim of this work was to evaluate the use of jatropha oil for combustion in vaporizing burners. This paper presents laboratory tests on a burner whose nominal output is 7.5kW. The burner had to be modified because of the high viscosity of jatropha oil and for cold start, as the oil flash point is much higher than fuel oil flash point. Pollutants emissions and thermal performances are analyzed for three firing rates. The burner meets EN1 standards at high firing rate. Unburned emissions are higher for middle and low firing rates. [less ▲]

Detailed reference viewed: 41 (22 ULg)
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See detailNatural Gas as an Alternative Fuel for Spark Ignition Engines
Sartor, Kevin ULg; Ngendakumana, Philippe ULg

Scientific conference (2010, May)

Detailed reference viewed: 47 (11 ULg)