Enviaments recents

  • A successful experience with the flipped classroom in the transport phenomena course 

    Valero Pérez, Mario Miguel; Martínez Martínez, María del Rosario; Pozo Montero, Francesc; Planas Cuchi, Eulàlia (2018-08-24)
    Article
    Accés restringit per política de l'editorial
    Transport Phenomena is a core subject in Chemical Engineering studies. Its fundamentals need significant effort to be understood. Furthermore, students must apply theory to solve practical engineering problems, and it is ...
  • Automated location of active fire perimeters in aerial infrared imaging using unsupervised edge detectors 

    Valero Pérez, Mario Miguel; Rios, Oriol; Pastor Ferrer, Elsa; Planas Cuchi, Eulàlia (2018-04-23)
    Article
    Accés obert
    A variety of remote sensing techniques have been applied to forest fires. However, there is at present no system capable of monitoring an active fire precisely in a totally automated manner. Spaceborne sensors show too ...
  • Study of the daily and seasonal atmospheric CH4 mixing ratio variability in a rural Spanish region using Rn-222 tracer 

    Grossi, Claudia; Vogel, F. R.; Curcoll, Roger; Agueda Costafreda, Alba; Vargas Drechsler, Arturo; Rodó, Xavier; Morguí, Josep Anton (2018-04-26)
    Article
    Accés obert
    The ClimaDat station at Gredos (GIC3) has been continuously measuring atmospheric (dry air) mixing ratios of carbon dioxide (CO2) and methane (CH4), as well as meteorological parameters, since November 2012. In this study ...
  • Interpolation framework to speed up near-surface wind simulations for data-driven wildfire applications 

    Rios, Oriol; Jahn, Wolfram; Pastor Ferrer, Elsa; Valero Pérez, Mario Miguel; Planas Cuchi, Eulàlia (2018-04-23)
    Article
    Accés obert
    Local wind fields that account for topographic interaction are a key element for any wildfire spread simulator. Currently available tools to generate near-surface winds with acceptable accuracy do not meet the tight time ...
  • Prediction of lift-off distance in choked and subsonic hydrogen jet fires 

    Bradley, Dereck; Casal Fàbrega, Joaquim; Palacios, Adriana (2017-11-23)
    Article
    Accés obert
    Hydrogen jet flames, as a consequence of their greater reactivity, have a number of characteristics that are different from other flames. These are reviewed, as are the various attempts that have been made to characterise, ...
  • Temporal and spatial variability of ground level atmospheric methane concentrations in the Ebro River Delta 

    Agueda Costafreda, Alba; Grossi, Claudia; Pastor Ferrer, Elsa; Rioja, Eva (2017-07)
    Article
    Accés restringit per política de l'editorial
    Deltas provide many worthy ecosystem services. Yet, delta basins are quite vulnerable, especially in the face of climate change, which can affect the outcome of both agriculture and biodiversity. Moreover, rice paddy ...
  • Configuration factors for ground level fireballs with shadowing 

    Vílchez, Juan Antonio; Muñoz, Miguel; Bonilla, Juan M.; Planas Cuchi, Eulàlia (2018-01-01)
    Article
    Accés obert
    This paper presents new configuration factors for a fireball located at ground level, as radiation emitting source, and a differential receiver, considering the shadow effect of a third finite area that stands between them. ...
  • A new method for performing smouldering combustion field experiments in peatlands and rich-organic soils 

    Pastor Ferrer, Elsa; Oliveras Menor, Immaculada; Urquiaga-Flores, Erickson; Quintano Loayza, Jose Antonio; Manta Nolasco, Maria Isabel; Planas Cuchi, Eulàlia (2017-12-08)
    Article
    Accés obert
    Smouldering ground fires have severe environmental implications. Their main effects are the release of large amounts of carbon to the atmosphere with loses of organic soil and its biota. Quantitative data on the behaviour ...
  • Pyrolysis gases released during the thermal degradation of insulation materials based on straw fibers 

    Chetehouna, Khaled; Belayachi, Naïma; Lemée, Laurent; Hoxha, Dashnor; Rengel Darnaculleta, Francisco de Borja (Springer, 2015-07-16)
    Article
    Accés obert
    Interest in recovering and valorizing agricultural biomass residues has increased in recent years in response to emerging economic opportunities and the potential for more sustainable use of renewable and easy available ...
  • Investigation on the thermal degradation and kinetic parameters of innovative insulation materials using TGA-MS 

    Chetehouna, Khaled; Belayachi, Naïma; Rengel Darnaculleta, Francisco de Borja; Hoxha, Dashnor; Gillard, Philippe (2015-04-13)
    Article
    Accés obert
    Thermogravimetric analyzer coupled to a mass spectrometer (TGA-MS) was used to study the thermochemical behavior of eight samples. Two varieties of straw (wheat and barley) and two others of binder (lime and plaster) have ...
  • Computational analysis of fire dynamics inside a wind turbine 

    Rengel Darnaculleta, Francisco de Borja; Pastor Ferrer, Elsa; Hermida, Debora; Gómez, Eugenio; Molinelli, Luis; Planas Cuchi, Eulàlia (2017-06-15)
    Article
    Accés obert
    Wind turbines are generally considered cost-effective, reliable and sustainable energy sources. Fires are not common in wind turbines, but a significant number of fires occur every year due to the large number of turbines ...
  • A new procedure to estimate BLEVE overpressure 

    Hemmatian, Behrouz; Casal Fàbrega, Joaquim; Planas Cuchi, Eulàlia (2017-10-01)
    Article
    Accés obert
    Several methodologies, based on different thermodynamic assumptions and requiring substance properties and thermodynamic data, have been proposed in the literature for the prediction of the mechanical energy released by a ...

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