HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad,... more
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. IFP Energies nouvelles International Conference Rencontres Scientifiques d'IFP Energies nouvelles
This paper is a part of the hereunder thematic dossier
Research Interests:
Research Interests:
Research Interests: Engineering, Chemistry, Mass Transfer, Carbon Dioxide, Power Plant, and 15 moreAtmospheric Pressure, Kyoto Protocol, CHEMICAL SCIENCES, Mathematical Model, Greenhouse Effect, Model System, Hydrogen Sulfide, Flue Gas, Acid Gas, Low Pressure Boiler, Environmental Regulation, Mass Transfer Coefficient, Measurement technique, Dilution, and CO Emission
The results of an experimental investigation of the instability of variable-density plane jets issuing into ambient air are reported. When the jet to ambient fluid density ratio S(S=&rgr;j/&rgr;∞) is less than a critical value, an... more
The results of an experimental investigation of the instability of variable-density plane jets issuing into ambient air are reported. When the jet to ambient fluid density ratio S(S=&rgr;j/&rgr;∞) is less than a critical value, an intense oscillating instability is observed. This instability is characterized by sharp peaks in the power spectral density measured in the near field of the jet. The effects of the control parameters S, Re, and H/θ (jet width to exit momentum thickness) on the instability regime are determined. It is shown that Re is a better scaling parameter than H/θ. The Strouhal number of the dominant mode StH increases with S and Re up to a constant value of 0.25, which is in rather good agreement with the theory and the experiments of Yu and Monkewitz [Phys. Fluids A 2, 1175 (1990); J. Fluid Mech. 255, 323 (1993)]. In the present experiments the critical value Sc above which the oscillating regime disappears is an increasing function of Re and Sc seems to reach a limiting value in the neighborhood of 0.7, which does not agree well either with the theory or with the experiments of Yu and Monkewitz [Phys. Fluids A 2, 1175 (1990); J. Fluid Mech. 255, 323 (1993)]. This difference is in qualitative agreement with the results of linear stability computations, also reported in the paper, which take into account differences in shape and relative positions of the density and velocity profiles.
Research Interests:
Research Interests:
Research Interests:
Research Interests:
To make the deployment of carbon capture possible, it is highly needed to develop original solutions that induce low energy penalty and that are easy to operate. This paper aims at presenting the DMX™ process developed at IFP Energies... more
To make the deployment of carbon capture possible, it is highly needed to develop original solutions that induce low energy penalty and that are easy to operate. This paper aims at presenting the DMX™ process developed at IFP Energies nouvelles based on special solvents which are characterized by the formation of two immiscible phases for given temperature and CO2 loading