References of "Dumont, Olivier"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailPerformance correlations for characterizing the optimal off-design operation of an ORC power system
Dickes, Rémi ULiege; Dumont, Olivier ULiege; Quoilin, Sylvain ULiege et al

in Energy Procedia (2017), 129

The goal of this work is to develop a set of simple correlations in order to characterize the optimal off-design performance of an ORC power system. To this end, a 2kWe ORC test rig is investigated as ... [more ▼]

The goal of this work is to develop a set of simple correlations in order to characterize the optimal off-design performance of an ORC power system. To this end, a 2kWe ORC test rig is investigated as case study and a validated off-design model is used to assess the highest net power generation achievable by the system over its complete range of operating conditions. The off-design model employed is charge-sensitive (i.e. it imposes the total mass of refrigerant in the system) which permits to predict the ORC state (i.e. its pressures, temperatures, mass flow rates, subcooling, etc.) based on the system boundary conditions only. Since such modelling approach and optimization process are time-consuming, a set of simple analytical equations is developed so as to easily predict the optimal performance of the ORC systems. [less ▲]

Detailed reference viewed: 56 (9 ULiège)
Full Text
Peer Reviewed
See detailModelling of organic Rankine cycle power systems in off-design conditions: an experimentally-validated comparative study
Dickes, Rémi ULiege; Dumont, Olivier ULiege; Daccord, Rémi et al

in Energy (2017), 123

Because of environmental issues and the depletion of fossil fuels, the world energy sector is undergoing many changes toward increased sustainability. Among the many fields of research and development ... [more ▼]

Because of environmental issues and the depletion of fossil fuels, the world energy sector is undergoing many changes toward increased sustainability. Among the many fields of research and development, power generation from low-grade heat sources is gaining interest and the organic Rankine cycle (ORC) is seen as one of the most promising technologies for such applications. In this paper, it is proposed to perform an experimentally-validated comparison of different modelling methods for the off-design simulation of ORC-based power systems. To this end, three types of modelling paradigms (namely a constant-efficiency method, a polynomial-based method and a semi-empirical method) are compared both in terms of their fitting and extrapolation capabilities. Post-processed measurements gathered on two experimental ORC facilities are used as reference for the models calibration and evaluation. The study is first applied at a component level (i.e. each component is analysed individually) and then extended to the characterization of the entire organic Rankine cycle power systems. Benefits and limi- tations of each modelling method are discussed. The results show that semi-empirical models are the most reliable for simulating the off-design working conditions of ORC systems, while constant-efficiency and polynomial-based models are both demonstrating lack of accuracy and/or robustness. [less ▲]

Detailed reference viewed: 145 (20 ULiège)
Full Text
See detailDesign optimization of Rankine cycle systems for waste heat recovery from passenger car engines
Lemort, Vincent ULiege; Legros, Arnaud; Dumont, Olivier ULiege et al

Conference (2017, February 07)

Detailed reference viewed: 63 (6 ULiège)
Full Text
Peer Reviewed
See detailExperimental investigation of four volumetric expanders
Dumont, Olivier ULiege; Dickes, Rémi ULiege; Lemort, Vincent ULiege

in Energy Procedia (2017)

Detailed reference viewed: 336 (6 ULiège)
Full Text
Peer Reviewed
See detailPerformance of a reversible heat pump/organic Rankine cycle unit coupled with a passive house to get a positive energy building
Dumont, Olivier ULiege; Carmo, Carolina; Fontaine, Valentin et al

in Journal of Building Performance Simulation [=JBPS] (2016)

Detailed reference viewed: 32 (4 ULiège)
Full Text
Peer Reviewed
See detailEconomic assessment of electric energy storage for load shifting in positive energy building
Dumont, Olivier ULiege; Carmo, Carolina; Georges, Emeline ULiege et al

in International Journal of Energy and Environmental Engineering (2016)

Detailed reference viewed: 52 (10 ULiège)
Full Text
Peer Reviewed
See detailEXPERIMENTAL INVESTIGATIONS OF THE VALORIZATION OF THE EXHAUST WASTE HEAT OF A GASOLINE ENGINE BASED ON A RANKINE CYCLE
Dumont, Olivier ULiege; Legros, Arnaud; Diny, Mouad et al

Conference (2016)

Detailed reference viewed: 44 (4 ULiège)
Full Text
Peer Reviewed
See detailPerformance Evaluation of a HP/ORC (Heat Pump/Organic Rankine Cycle) System with Optimal Control of Sensible Thermal Storage
Carmo, Carolina; Nielsen, MAds; Elmegaard, Brian et al

Conference (2016)

Detailed reference viewed: 26 (3 ULiège)
Full Text
Peer Reviewed
See detailHot water tanks : how to select the optimal modelling approach?
Dumont, Olivier ULiege; Carmo, Carolina; Dickes, Rémi ULiege et al

Conference (2016)

Detailed reference viewed: 50 (8 ULiège)
Full Text
Peer Reviewed
See detailAssessment of Emerging Renewable Energy-based Cogeneration Systems for nZEB Residential Buildings
Carmo, Carolina; Dumont, Olivier ULiege; Nielsen, Mads Pagh et al

Conference (2016)

Detailed reference viewed: 32 (1 ULiège)
Full Text
Peer Reviewed
See detailPerformance Evaluation of a HP/ORC System with Optimal Control of Sensible Thermal Storage
Carmo, Carolina; Dumont, Olivier ULiege; Nielsen, Mads Pagh et al

Conference (2016)

Detailed reference viewed: 30 (1 ULiège)
Peer Reviewed
See detailEconomic assessment of energy storage for load shifting in Positive Energy Building
Dumont, Olivier ULiege; Carmo, carolina; Georges, Emeline ULiege et al

Conference (2016)

Detailed reference viewed: 85 (9 ULiège)
Full Text
Peer Reviewed
See detailAnalysis and comparison of different modeling approaches for the simulation of a micro-scale organic Rankine cycle power plant
Dickes, Rémi ULiege; Dumont, Olivier ULiege; Legros, Arnaud ULiege et al

in Proceedings of the 3rd International Seminar on ORC Power Systems (2015, October 12)

When simulating a system based on the organic Rankine cycle (ORC), different modeling methods can be used to predict its performance. Each method is characterized by advantages, limitations and a level of ... [more ▼]

When simulating a system based on the organic Rankine cycle (ORC), different modeling methods can be used to predict its performance. Each method is characterized by advantages, limitations and a level of complexity. This contribution aims to assess the impact of the modeling approach on the performance prediction of ORC systems. To this end, a 2.8 kWe ORC unit is investigated as case study. In this paper, the components of the test bench are modeled using different approaches of increasing complexity and each model is calibrated using experimental data from the test rig. The goodness of fit as well as the benefits and limitations of each modeling methods are analyzed and discussed. [less ▲]

Detailed reference viewed: 195 (24 ULiège)