Browsing Institutt for energi og prosessteknikk by Author "Georges, Laurent"
Now showing items 41-60 of 89
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Evaluation of Simplified Space-Heating Hydronic Distribution for Norwegian Passive Houses
Georges, Laurent; Alonso, Maria Justo; Woods, Ruth; Wen, Kang; Håheim, Fredrik; Liu, Peng; Berge, Magnar; Thalfeldt, Martin (ZEB Project report;, Research report, 2017)This technical report combines research results from the Norwegian Research Center on Zero Emission Buildings (ZEB) and a competence project about simplified hydronic distribution funded by Husbanken. In the Norwegian ... -
Experimental test of a black-box economic model predictive control for residential space heating
Knudsen, Michael; Georges, Laurent; Skeie, Kristian; Petersen, Steffen (Peer reviewed; Journal article, 2021)Previous studies have identified significant demand response (DR) potentials in using economic model predictive control (E-MPC) of space heating to exploit the inherent thermal mass in residential buildings for short-term ... -
Grey-box modeling of the building thermal dynamics for MPC applications: The case of residential space-heating
Xingji, Yu (Doctoral theses at NTNU;2022:324, Doctoral thesis, 2022)The transition from a conventional energy system to a decarbonized energy system requires an increasing penetration of intermittent renewable energy sources, which brings more fluctuations to the electricity grid. Therefore, ... -
Heat pump systems adapted to highly-insulated office buildings - Comparison between simulations and field measurement
Skjerve, Per Martin (Master thesis, 2016)The temperature in the atmosphere is rising as a cause of human influence, and it was found that the building sector in 2012 emitted 18.4 % of the greenhouse gas (GHG) emissions on the planet (Pachauri et al., 2014). A ... -
Heating power at room and building levels in passive houses and low-energy buildings
Rinholm, Jonas Myrberg (Master thesis, 2015)This master thesis investigates the Norwegian standard for calculating necessary power demand, NS-EN 12831:2003- Varmesystemer i bygninger - Metode for beregning av dimensjonerende effektbehov. In that context, it is also ... -
The implementation of multiple linear regression for swimming pool facilities: Case study at Jøa, Norway
Smedegård, Ole Øiene; Jonsson, Thomas; Aas, Bjørn; Stene, Jørn; Georges, Laurent; Carlucci, Salvatore (Peer reviewed; Journal article, 2021)This paper presents a statistical model for predicting the time-averaged total power consumption of an indoor swimming facility. The model can be a powerful tool for continuous supervision of the facility’s energy performance ... -
Indirect Evaporative- and Desiccant Wheel Cooling for Norwegian Office
Øgreid, Andreas Undheim (Master thesis, 2022)Globale kjølebehov er i stadig økning og handlinger må derfor gjøres for å sørge for at driftingen av VVS-systemer blir mer klimavennlige og så energieffektive som mulig. Tradisjonelle kjølemaskiner inneholder kjølemidler ... -
Indoor air quality in natural-ventilated bedrooms in renovated Norwegian houses
Heide, Vegard; Skyttern, Silje; Georges, Laurent (Peer reviewed; Journal article, 2021)The objective of this work is to investigate the indoor environment in bedrooms ventilated by window opening during night-time. How window opening behaviour affects indoor air quality (IAQ), and how window opening behaviour ... -
Influence of space heating distribution systems on the energy flexibility of Norwegian residential buildings
Nickl, Christoph; Clauß, John; Georges, Laurent (Chapter, 2020)This work evaluates the influence of the heating distribution system on the energy flexibility of highly insulated single-family residential buildings. The behavior of three different systems (air heating, radiator heating, ... -
Influence of the space-heating distribution system on the energy flexibility of Norwegian residential buildings
Nickl, Christoph Heinz (Master thesis, 2018)Demand side flexibility gained more and more research interest over the last years, as the generation of renewable power grows and challenges economical operation of power plants as well as grid stability. Several studies ... -
Influence of thermal zoning and electric radiator control on the energy flexibility potential of Norwegian detached houses
Johnsen, Thea; Taksdal, Katrine; Clauß, John; Yu, Xingji; Georges, Laurent (Journal article; Peer reviewed, 2019)Energy flexibility of buildings can be used to reduce energy use and costs, peak power, CO2eq- emissions or to increase self-consumption of on-site electricity generation. Thermal mass activation proved to have a large ... -
Innovasjonsrapport 2020. Forskningssenteret for nullutslippsområder i smarte byer (FME ZEN)
Bergsdal, Håvard; Sørensen, Åse Lekang; Cervenka, Zdena; Holm, Øystein; Thomsen, Judith; Sartori, Igor; Lindberg, Karen Byskov; Stokke, Raymond Andreas; De Boer, Luitzen; Hamdan, Hasan; Holmen, Elsebeth; Wiik, Marianne Rose Kjendseth; Backe, Stian; Kauko, Hanne; Georges, Laurent; Walnum, Harald Taxt; Lien, Synne Krekling; Skaar, Christofer; Wolfgang, Ove; Brattebø, Helge; Lausselet, Carine; Resch, Eirik; Sandberg, Nina Holck; Pinel, Dimitri; Thorvaldsen, Kasper Emil; Alonso, Maria Justo; Askeland, Magnus; Petersen, Sobah Abbas; Favero, Matteo; Carlucci, Salvatore; Liu, Peng (ZEN Report;, Research report, 2020)Forord. Forskning og innovasjon er grunnpilaren i vår visjon om å utvikle bærekraftige områder med null klimagassutslipp. Innovasjonskomiteen skal bistå senterledelsen i dette arbeidet gjennom å etablere gode innovasjonsprosesser ... -
Inverse Model Identification of the Thermal Dynamics of a Norwegian Zero Emission House
Vogler-Finck, Pierre; Clauß, John; Georges, Laurent; Sartori, Igor; Wisniewski, Rafael (Chapter, 2019)Dynamical model identification is an essential element in the implementation of a model predictive controller. In this work, a control-oriented first order model was identified in a dedicated experiment on a super-insulated ... -
Investigation of the Model Structure for Low-Order Grey-Box Modelling of Residential Buildings
Yu, Xingji; Georges, Laurent; Knudsen, Michael; Sartori, Igor; Imsland, Lars Struen (Chapter, 2019)Model Predictive Control (MPC) is a key technology to activate the building energy flexibility. A reliable control-based model should be developed for each specific building. The structure of grey-box models is usually ... -
Investigations of Different Control Strategies for Heat Pump Systems in a Residential nZEB in the Nordic Climate
Clauss, John; Sartori, Igor; Alonso, Maria Justo; Thalfeldt, Martin; Georges, Laurent (Chapter, 2017)The paper investigates different control strategies for a ground source heat pump of a Norwegian residential zero emission building, with detailed dynamic simulations (here using IDA ICE). These rule-based controls aim at ... -
Is a net life cycle balance for energy and materials achievable for a zero emission single-family building in Norway?
Kristjansdottir, Torhildur Fjola; Houlihan Wiberg, Aoife Anne Marie; Andresen, Inger; Georges, Laurent; Heeren, Niko; Good, Clara; Brattebø, Helge (Journal article; Peer reviewed, 2018)In this study, the objective is to redesign a previous concept for a single-family Zero greenhouse gas Emission Building (ZEB). The concept is redesigned based on comparing greenhouse gas (GHG) emission loads and compensation ... -
Measured load profiles and heat use for “low energy buildings” with heat supply from district heating
Ulseth, Rolf; Lindberg, Karen Byskov; Georges, Laurent; Alonso, Maria Justo; Utne, Åmund (Journal article; Peer reviewed, 2017)In the development towards nearly zero energy buildings (nZEB) the load profiles for the heat demand and the heat use of the buildings are expected to be changed considerably compared to the situation today. This change ... -
Model complexity of heat pump systems to investigate the building energy flexibility and guidelines for model implementation
Clauß, John; Georges, Laurent (Journal article; Peer reviewed, 2019)Building performance simulation (BPS) is a powerful tool for engineers working in building design and heating, ventilation and air-conditioning. Many case studies using BPS investigate the potential of demand response (DR) ... -
Modelica Emulator for MPC Applications in Buildings
Gundersen, Martine Walvik (Master thesis, 2021)Bygninger bidrar til verdens energibruk og utslipp av klimagasser. En foreslått løsning for å redusere energibruken i eksisterende bygninger er å implementere avanserte kontrollstrategier. Et forslag er modell prediktiv ... -
Modeling of the indoor environment of buildings heated using wood stoves
Sellevold, Eivin Dyvik (Master thesis, 2016)This paper investigates the thermal plume caused by wood stoves, with the main goal of integrating wood stoves in highly insulated buildings, ensuring an acceptable thermal environment. The physical theory behind thermal ...