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  • Methodology for the identification of significant environmental aspects in Mediterranean and Black seas

     Puig Duran, Martí; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    2nd International Ocean Research Conference
    p. 204-205
    Presentation's date: 2014-11
    Presentation of work at congresses

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  • Environmental management performance in the Mediterranean and black sea ports

     Puig Duran, Martí; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    International Congress on Green Infrastructure and Sustainable Societies/Cities
    p. 138
    Presentation's date: 2014-05
    Presentation of work at congresses

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  • Socio-economic impact of the maritime transport and ports in the Mediterranean and Black Seas

     Puig Duran, Martí; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    PERSEUS Scientific Workshop
    p. 74
    Presentation's date: 2014-01
    Presentation of work at congresses

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  • Environmental pressures caused by ports in the Mediterranean and Black Sea

     Puig Duran, Martí; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    PERSEUS Scientific Workshop
    p. 25
    Presentation's date: 2014-01-29
    Presentation of work at congresses

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    Environmental reporting and communication ¿ ¿Show me the evidence¿!  Open access

     Puig Duran, Martí; Wooldridge, Chris; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    GreenPort Congress
    p. 168-177
    Presentation's date: 2013-10-10
    Presentation of work at congresses

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  • Estudio de la dispersión e incendio de nubes inflamables de gas (GNL y GLP)  Open access

     Villafañe Santander, Diana
    Department of Chemical Engineering, Universitat Politècnica de Catalunya
    Theses

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    Esta tesis se centra en el estudio de la dispersión e incendio de nubes de vapor o gas inflamables resultado de vertidos de GNL y GLP, sustancias con un mercado claramente en expansión y un consumo basado en múltiples instalaciones de almacenamiento y diferentes formas de transporte. La posibilidad de un derrame y de la posterior formación de una nube inflamable es por tanto considerable. La aplicación de las medidas adecuadas de seguridad en las terminales y las instalaciones relacionadas con estos productos es fundamental para garantizar su seguridad. En caso de escape, un aspecto importante es la gestión de la emergencia una vez la nube ha alcanzado el estado estacionario (el tiempo para alcanzar este estado depende de la velocidad del viento, pero usualmente es muy corto). En esta situación, cualquier información acerca de la posición de la región inflamable de la nube puede ser muy útil. Se ha realizado un análisis histórico sobre 176 casos de incendio de nubes de vapor inflamables, el cual ha permitido obtener información sobre las causas, orígenes y consecuencias de este tipo de eventos. Se ha propuesto un factor de seguridad de dispersión (DSF) como una herramienta para ayudar a la toma de decisiones bajo estas circunstancias. El factor DSF es la relación entre la distancia alcanzada por el límite inferior de inflamabilidad y la distancia alcanzada por la nube visible. Los resultados obtenidos para el factor de seguridad de dispersión con el código DEGADIS concuerdan bastante bien con la evidencia de los datos experimentales a gran escala. Este factor es fuertemente dependiente de la humedad relativa del aire. Si la humedad relativa es alta, la nube será visible más allá de la región inflamable (DSF < 1). Si es baja, la región inflamable se extiende más allá del contorno de la nube visible (DSF > 1). En este último caso, la situación es potencialmente más peligrosa con respecto a la existencia de una fuente de ignición, ya que la nube inflamable no resulta visible en toda su extensión. Se proponen dos expresiones para estimar el factor DSF para el GNL en función de HR. Dicho factor ha sido también aplicado al caso de un derrame de gas propano licuado refrigerado a presión atmosférica, habiéndose propuesto expresiones para su estimación. Con respecto a la combustión de las nubes de vapor, se ha obtenido una nueva expresión que permite la predicción de la velocidad de propagación de la llama en función de la velocidad del viento, basada en diversas pruebas experimentales a gran escala realizadas con GNL entre 1968 y 1982, que da un mejor ajuste para velocidades elevadas del viento. Se ha propuesto asimismo un modelo relativamente sencillo para el cálculo de la altura de las llamas, basado en las dimensiones de la nube de gas en función del tipo de combustible y de las condiciones atmosféricas. El tamaño de las llamas depende del de la nube, siendo su altura siempre superior a la de ésta. Se ha observado de los diversos datos experimentos disponibles, que la altura de las llamas aumenta proporcionalmente a la de la nube visible.

    This thesis is focuses on the study of the dispersion and combustion of a vapor cloud resulting from the escape of LNG and LPG. The consumption of natural gas and LPG is clearly growing, and is based on multiple storage facilities and different types of transport. The possibility of a release and the subsequent vapor cloud formation is significant. The application of appropriate measures to ensure safety in terminals and facilities related to these products is essential to the community safety. An important aspect is the management of the emergency once the cloud has reached the stationary state (the time to reach this state depends on wind velocity, but is usually very short). In this situation, any information about the position of the flammable region of the cloud can be very helpful. A historical analysis of accidents involving vapor cloud fires has been carried out. 176 accidents have been analyzed, which have yielded information on the causes, origins and consequences of such events. A dispersion safety factor (DSF) has been proposed as a tool to help in the decision process under these circumstances. The parameter DSF is the ratio between the distance reached by the lower flammability limit and that of the visible cloud. The results obtained for the dispersion safety factor with the DEGADIS code agree fairly well with the evidence from experimental data obtained at large scale. This factor is strongly dependent on the atmospheric relative humidity. Thus, when high relative humidity prevails, the cloud will be visible for some distance beyond the flammable region (DSF < 1). When the relative humidity in the air is low, the flammable region extends beyond the visible cloud contour (DSF > 1). In this case, the flammable vapor cloud will not be visible at the location of any potential ignition source. Two expressions have been proposed to estimate the parameter DSF for a release of LNG according to the range of HR. The same treatment has also been applied to the case of a spill of liquefied propane gas cooled at atmospheric pressure. With respect to the combustion of the flammable vapor cloud, a new expression has been obtained, which determines the flame speed as a function of the wind speed, based on various large scale tests conducted with LNG between 1968 and 1982; this expression gives a better fit for high wind speeds. A relatively simple model of the flash fire has been developed based on the dispersion of the cloud as a function of fuel properties and atmospheric conditions (stability and wind velocity). The size of the flames will depend on the size of the cloud, being higher that the latter. It has been observed from the available data experiments, that the flame height increases proportionally to the visible cloud.

  • Analysis of past accidents and relevant case-histories

     Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    DOI: 10.1016/B978-0-444-54323-3.00002-6
    Date of publication: 2013
    Book chapter

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    The diverse historical surveys on accidents involving domino effect have been analyzed to identify their significance and their most important features. From these data, the importance of domino effect among all accidents in the process industry and in the transportation of hazardous materials has been highlighted. The characteristics of this type of accidents have been studied with a statistical approach: origin and causes of domino effect, materials most frequently involved and effects and consequences of accidents. The significance of the diverse domino sequences have been assessed by using the relative probability event tree. Finally, four relevant cases have been discussed, corresponding to the following initiating events: two vapor cloud explosions (Buncefield, 2005 and Naples, 1985), one jet fire (Valero, 2007) and one accident associated with dust explosion.

  • Tracking global flows of e-waste additives by using substance flow analysis, with a case study in China

     Tien, Henning; Heise, Susanne; Segui Julia, Xavier; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria; Suciu, Nicoleta; Capri, Ettore; Trevisan, Marco; Schuhmacher, Marta; Nadal, Martí; Rovira Solano, Joaquim
    DOI: 10.1007/978-3-642-34572-2
    Date of publication: 2013
    Book chapter

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  • Environmental fate models

     Suciu, Nicoleta; Tanaka, Taku; Trevisan, Marco; Schuhmacher, Marta; Nadal, Martí; Rovira Solano, Joaquim; Segui Julia, Xavier; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria; Capri, Ettore
    DOI: 10.1007/978-3-642-34572-2
    Date of publication: 2013
    Book chapter

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  • Human and environmental impact produced by e-waste releases at Guiyu region (China)

     Suciu, Nicoleta; Capri, Ettore; Trevisan, Marco; Tanaka, Taku; Tien, Henning; Heise, Susanne; Schuhmacher, Marta; Nadal, Martí; Rovira Solano, Joaquim; Segui Julia, Xavier; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    DOI: 10.1007/978-3-642-34572-2
    Date of publication: 2013
    Book chapter

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  • Medalla Narcís Monturiol al mèrit científic i tecnològic

     Casal Fabrega, Joaquim
    Award or recognition

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  • Jet fires: a "minor" fire hazard?

     Casal Fabrega, Joaquim; Gómez-Mares, Mercedes; Muñoz Messineo, Miguel Angel; Palacios, Adriana
    International Conference on Safety & Environment in Process & Power Industry
    p. 13-20
    Presentation's date: 2012-06
    Presentation of work at congresses

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  • Global E-waste trade impact on China

     Tien, Henning; Heise, Susanne; Segui Julia, Xavier; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria; Suciu, Nicoleta; Capri, Ettore; Trevisan, Marco; Schuhmacher, Marta; Nadal, Martí; Rovira Solano, Joaquim
    Risk-based Management of Chemicals and Products in a Circular Economy at a Global Scale
    p. 89-102
    Presentation's date: 2012-05
    Presentation of work at congresses

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  • Environmental and human risk assessment of e-waste releases in China through USEtoxTM

     Segui Julia, Xavier; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria; Schuhmacher, Marta; Nadal, Martí; Rovira Solano, Joaquim; Tien, Henning; Heise, Susanne; Suciu, Nicoleta; Capri, Ettore; Trevisan, Marco
    Risk-based Management of Chemicals and Products in a Circular Economy at a Global Scale
    p. 223-228
    Presentation's date: 2012-05
    Presentation of work at congresses

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  • Human and environmental impact produced by the e-waste releases at Guiyu Region (China)

     Suciu, Nicoleta; Capri, Ettore; Trevisan, Marco; Tien, Henning; Heise, Susanne; Schuhmacher, Marta; Nadal, Martí; Rovira Solano, Joaquim; Segui Julia, Xavier; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    Risk-based Management of Chemicals and Products in a Circular Economy at a Global Scale
    p. 163-170
    Presentation's date: 2012-05
    Presentation of work at congresses

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  • Application of the multimedia environmental model QWASI for asessing the aquatic risk in an area of informal e-waste recycling

     Heise, Susanne; Tien, Henning; Darbra Roman, Rosa Maria; Segui Julia, Xavier; Casal Fabrega, Joaquim; Schuhmacher, Marta; Nadal, Martí; Rovira Solano, Joaquim; Suciu, Nicoleta; Trevisan, Marco; Capri, Ettore
    Risk-based Management of Chemicals and Products in a Circular Economy at a Global Scale
    p. 255-256
    Presentation's date: 2012-05
    Presentation of work at congresses

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  • Use of a multimedia exposure model for health risk assessment of lead released during e-waste recycling processes in South of China

     Suciu, Nicoleta; Trevisan, Marco; Capri, Ettore; Tanaka, Taku; Darbra Roman, Rosa Maria; Segui Julia, Xavier; Casal Fabrega, Joaquim; Tien, Henning; Heise, Susanne; Schuhmacher, Marta; Nadal, Martí; Rovira Solano, Joaquim
    Risk-based Management of Chemicals and Products in a Circular Economy at a Global Scale
    p. 229-236
    Presentation's date: 2012-05
    Presentation of work at congresses

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  • Desarrollo de una nueva metodología para la optimización de instalaciones industriales incluyendo el análisis cuantitativo de riesgos

     Darbra Roman, Rosa Maria; Casal Fabrega, Joaquim; Arnaldos Viger, Josep; Muñoz Messineo, Miguel Angel; Folch Beltran, Jaime; Vílchez Sánchez, Juan Antonio
    Competitive project

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    Fuzzy approach for risk assessment of brominated flame retardants in aquatic ecosystems  Open access

     Pujolasus, Edgar; Betró, S; Segui Julia, Xavier; Àgueda Costafreda, Alba; Casal Fabrega, Joaquim; Ocampo-Duque, W; Rudolph, I; Barra, R; Páez, M; Barón, E; Santín, G; Eljarrat, Ethel; Barceló, D; Darbra Roman, Rosa Maria
    SETAC Europe Annual Meeting
    Presentation's date: 2012
    Presentation of work at congresses

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    Brominated flame retardants (BFR) are pollutants that represent a threat to both human health and environment due to their industrial use, their persistence and their ability to bioaccumulate and biomagnify in food chains, especially in the aquatic one. For the last ten years contamination levels for this type of compounds have been reported for European, North American and Asian human tissue, sediments and biota samples [1-3]. However, monitoring efforts into the assessment of BFRs contamination levels in Latin America are scarce. In this study, a model for the evaluation of the environmental risk of BFRs in the aquatic ecosystems has been developed. It has been based on a technical application of the Fuzzy Theory [4]. In particular, three interconnected Fuzzy Inference Systems (FIS) have been created through the use of the Fuzzy Toolbox in Matlab. In order to improve and make the model scientifically robust, several international experts have been questioned about different information required to build the fuzzy system. Information from 38 questionnaires have been collected and statistically treated.

  • Combination of SFA and multi-media fate modeling to assess the consequences of global trade and informal recycling of WEEE in China

     Tien, Henning; Heise, Susanne; Suciu, Nicoleta; Capri, Ettore; Trevisan, Marco; Schuhmacher, Marta; Nadal, Martí; Rovira Solano, Joaquim; Segui Julia, Xavier; Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    SETAC Europe Annual Meeting
    Presentation's date: 2012
    Presentation of work at congresses

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  • Additives in the textile industry

     Darbra Roman, Rosa Maria; González Dan, Jose Roberto; Casal Fabrega, Joaquim; Àgueda Costafreda, Alba; Capri, Ettore; Fait, G; Schumacher, Marta; Nadal, Martí; Rovira Solano, Joaquim; Grundmann, Veit; Barceló, D; Ginebreda Marti, Antoni; Guillén, Daniel
    Date of publication: 2012-01-31
    Book chapter

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  • Assessing the effects of flash fires

     Villafañe Santander, Diana; Darbra Roman, Rosa Maria; Casal Fabrega, Joaquim
    Mediterranean Congress of Chemical Engineering
    Presentation's date: 2011-11
    Presentation of work at congresses

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  • Flash fire: historical analysis and modeling

     Villafañe Santander, Diana; Darbra Roman, Rosa Maria; Casal Fabrega, Joaquim
    International Congress of Chemical and Process Engineering
    p. 1111-1116
    DOI: 10.3303/CET1124186
    Presentation's date: 2011-05-10
    Presentation of work at congresses

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  • Risk-Based inspection and its application to the optimization of chemical plants

     Medina, Héctor; Arnaldos Viger, Josep; Casal Fabrega, Joaquim
    International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction
    p. 201-206
    DOI: 10.3303/CET1125034
    Presentation's date: 2011-05-09
    Presentation of work at congresses

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  • Review of models used for human health and environmental risk assessment

     Rovira Solano, Joaquim; Mari, M.; Nadal, Martí; Schuhmacher, Marta; Domingo Fuster, Jose Luis; Darbra Roman, Rosa Maria; Àgueda Costafreda, Alba; Casal Fabrega, Joaquim; Capri, Ettore; Tanaku, T; Ginebreda Marti, Antoni; Guillén, Daniel; Barceló, D.
    SETAC Europe Annual Meeting
    Presentation's date: 2011-05
    Presentation of work at congresses

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  • Environmental risk assessment of brominated flame retardants through fuzzy logic

     Betrò, S.; Pujolasus, A.; Àgueda, E.; Casal Fabrega, Joaquim; Ocampo-Duque, William; Eljarrat, Ethel; Barceló, D.; Darbra Roman, Rosa Maria
    RISKCYCLE Workshop
    Presentation's date: 2011-05-02
    Presentation of work at congresses

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  • Fuzzy approach for risk assessment of brominated flame retardants in aquatic ecosystems of Latin America

     Àgueda Costafreda, Alba; Betrò, S.; Pujolasus, E.; Casal Fabrega, Joaquim; Ocampo-Duque, William; Eljarrat, Ethel; Barceló, D.; Darbra Roman, Rosa Maria
    SETAC Europe Annual Meeting
    Presentation's date: 2011-05
    Presentation of work at congresses

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    Main features and mathematical modelling of flash fires  Open access

     Villafañe Santander, Diana; Darbra Roman, Rosa Maria; Casal Fabrega, Joaquim
    International Congress of Chemical and Process Engineering
    p. 363-372
    DOI: 10.3303/ACOS1110040
    Presentation of work at congresses

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  • Study of jet fires geometry and radiative features  Open access

     Palacios Rosa, Adriana
    Department of Chemical Engineering, Universitat Politècnica de Catalunya
    Theses

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    Entre els accidents greus que poden ocórrer a les instal·lacions industrials o durant el transport de substàncies perilloses, els dolls de foc presenten un especial interès. Tot i que tenen una distància relativament més curta d'afectació que altres accidents greus, es caracteritzen per originar grans fluxos de calor i, en cas de contacte de la flama amb un equip, originen sovint un efecte domino, desencadenant una subseqüent explosió, incendi o altres esdeveniments amb greus conseqüències.Diversos estudis experimentals i teòrics han estat efectuats; no obstant això, la majoria d'aquests han estat enfocats a dolls de foc a escala de laboratori, flames subsòniques o torxes, les condicions de les quals difereixen significativament d'aquelles trobades en dolls de foc accidentals reals, que normalment assoleixen majors longituds de flama i velocitats de sortida sònica. Aquesta manca d'investigació és la raó per explicar perquè els dolls de foc eren encara molt mal coneguts i la predicció dels seus efectes i conseqüències era encara un problema. Aquesta tesi ha estat elaborada per a obtenir informació nova i útil sobre els dolls de foc, millorant la comprensió de la seva geometría i de les característiques tèrmiques, mitjançant l'anàlisi, l'experimentació i el modelatge matemàtic.Aquest estudi s'ha centrat alhora en dades existents i en noves dades experimentals, implicant Aixa dolls de foc verticals i horitzontals alliberats en absència de vent, implicant diversos combustibles (hidrogen, metà i propà). L'estudi comprèn una àmplia gamma de variables d'operació (velocitats de sortida del combustible, pressions en la canonada i diàmetres d'orifici de sortida). L'estudi experimental ha implicat dolls de foc amb flames de fins a 10.3 m de longitud i 1.5 m d'amplada. El combustible utilitzat ha estat propà, amb velocitats de sortida sònica i subsònica, utilitzant diversos diàmetres d'orifici de sortida. Els dolls de foc han estat filmats amb dues càmeres de vídeo (VHS) i una càmera termográfica d'alta velocitat (IR). Les principals característiques geomètriques de les flames (dimensions i forma) han estat analitzades en funció de la velocitat de sortida del combustible,del flux màssic i del diàmetre d'orifici de sortida. L'anàlisi i tractament d'imatges infraroges i de les mesures obtingudes amb tres sensors de flux de calor situats a diferents distàncies de la sortida del doll de foc han permès l'obtenció de les seves principals característiques de radiació: flux de calor irradiat als voltants (persones i instal·lacions) en funció de la distancia, poder emissiu i emisivitat de les flames. Diverses expressions han estat proposades per estimar les dimensions de la flama en funció de diverses variables (flux màssic, diàmetre d'orifici de sortida i nombres de Froude i Reynolds). Els resultats i expressions obtinguts en aquest estudi contribueixen a una millor comprensió dels dolls de foc, representant un avanç en les metodologies i l'establiment de noves mesures, normes i polítiques de planificació per a la prevenció i/o el control d'aquest tipus d'accident greu amb foc, tant en establiments industrials com en el transport de materials perillosos.

    Among the major accidents that can occur in processing plants or in the transportation of hazardous materials, jet fires are of particular interest. Although they have a relatively shorter distance of influence than other major accidents, they are characterized by high heat fluxes and if there is flame impingement they can originate a domino effect, leading to a subsequent explosion, large fire, or other events with severe effects. Several experimental and theoretical studies have been carried out; however, most of those works have been focused on small-scale jet fires, subsonic flames or flares, the conditions of which significantly differ from those found in real accidental jet fires, usually reaching larger flame lengths and sonic exit velocities. This lack of research is the reason to explain why the current knowledge of jet fires was still rather poor and the accurate prediction of their effects and consequences was still a problem. The present thesis has been addressed to produce a significant amount of novel and useful information on jet fires, by improving understanding of jet fire structure, reach and radiative features, through analyses, experiment and mathematical modelling. This study has been focused on both existing and also new experimental jet flame data, comprising all together, turbulent non-premixed jet flames vertically and horizontally released into still air, involving several fuels (hydrogen, methane and propane), over a wide range of operational conditions (jet exit velocities, release pressures and pipe diameters). The experimental study developed in this thesis has concerned relatively large jet fires with flames of up to 10.3 m in length and 1.5 m in width. The fuel was propane, and both sonic and subsonic jet exit velocities were obtained from different outlet diameters. The jet fires were filmed with two videocameras registering visible light (VHS) and a thermographic camera (IR). The main geometrical features of the flames were analyzed as a function of the fuel velocity, mass flow rate and jet outlet diameter: jet flame size and flame shape. The treatment of infrared images and measurements obtained from three heat flow sensors located at different distances from the jet fire outlet also led the main radiative features of jet fires to be obtained: incident thermal radiation heat over a target, surface emissive power and emissivity of the flames.Expressions for estimating jet flame reach as a function of several variables (mass flow rate, orifice exit diameter, Froude and Reynolds numbers) have also been proposed. The results and the expressions obtained in this study contribute to a better understanding of jet fires for accurate risk assessment, allowing the obtention of important advances in risk assessment methodologies and the establishment of new measures, regulations, and risk planning policies for the prevention and/or control of this type of major fire, occurred world-wide in industrial establishments and in the transportation of hazardous materials.

  • Aplicación del Análisis de Riesgos a la Optimización de Plantas Industriales

     Medina, Héctor
    Department of Chemical Engineering, Universitat Politècnica de Catalunya
    Theses

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  • RISCKCYCLE Work package 5: Aims achieved and future goals

     Darbra Roman, Rosa Maria; Casal Fabrega, Joaquim; AGUEDA COSTAFREDA, ALBA
    Risk-based Management of Chemicals and Products in a Circular Economy at a Global Scale: International Workshop
    Presentation's date: 2010-11-17
    Presentation of work at congresses

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  • The behaviour of vertical jet fires

     Palacios, Adriana; Gómez-Mares, Mercedes; Casal Fabrega, Joaquim
    13th International Symposium on Loss Prevention and Safety Promotion in the Process Industries
    p. 483-486
    Presentation's date: 2010-06-06
    Presentation of work at congresses

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  • Riskcycle. Deliverable 5.1. Definition of risk scenarios and historical analysis

     Darbra Roman, Rosa Maria; AGUEDA COSTAFREDA, ALBA; Casal Fabrega, Joaquim
    Date: 2010-05-31
    Report

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  • Modelling of pool fires

     Casal Fabrega, Joaquim; Demichela, Micaela; Pirani, Roberta
    European Meeting on Chemical Industry and Environment
    p. 247-257
    Presentation's date: 2010-05-18
    Presentation of work at congresses

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  • Assessment of thermal effects from hydrocarbon fires

     Palacios Rosa, Adriana; Gómez Mares, Mercedes; Villafañe Santander, Diana; Darbra Roman, Rosa Maria; Muñoz Messineo, Miguel Angel; Casal Fabrega, Joaquim
    European Meeting on Chemical Industry and Environment
    p. 259-268
    Presentation's date: 2010-05-19
    Presentation of work at congresses

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  • Risk-based optimization of the design of on-shore pipelines shutdown systems

     Medina, Héctor; Arnaldos Viger, Josep; Casal Fabrega, Joaquim; Bonvicini, Sarah; Cozzani, Valerio
    European Meeting on Chemical Industry and Environment
    p. 235-244
    Presentation's date: 2010-05-18
    Presentation of work at congresses

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  • Correlation of the height of turbulent choked jet flames

     Bradley, D.; Casal Fabrega, Joaquim; Palacios, A.
    International Seminar on Fire and Explosions Hazards
    DOI: 10.3850/978-981-08-7724-8_04-01
    Presentation's date: 2010-04-11
    Presentation of work at congresses

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  • Environmental risk associated to textile materials: preliminary considerations

     Darbra Roman, Rosa Maria; AGUEDA COSTAFREDA, ALBA; Casal Fabrega, Joaquim
    Risk-based Management of Chemicals and Products in a Circular Economy at a Global Scale: International Workshop
    Presentation of work at congresses

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  • Risk-based optimization of the design of onshore pipelines shutdown systems

     Medina, H.; Arnaldos Viger, Josep; Casal Fabrega, Joaquim; Bonvicini, S.; Cozzani, V.
    European Meeting on Chemical Industry and Environment
    p. 235-244
    Presentation of work at congresses

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  • Estudio experimental y modelización matemática de dardos de fuego  Open access

     Gómez Mares, Mercedes
    Department of Chemical Engineering, Universitat Politècnica de Catalunya
    Theses

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  • Risk-based management of chemicals and products in a circular economy at a global scale (RISKCYCLE)

     Darbra Roman, Rosa Maria; Billitewski, Bernd; Casal Fabrega, Joaquim
    Competitive project

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  • CENTRE D'ESTUDIS DEL RISC TECNOLÒGIC (CERTEC)

     Casal Fabrega, Joaquim
    Competitive project

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  • RISK BASED MANAGEMENT OF CHEMICALS AND PRODUCTS IN A CIRCULAR ECONOMY AT A GLOBAL SCALE

     Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria
    Competitive project

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  • Teaching risk analysis through the investigation of real cases

     Casal Fabrega, Joaquim; Darbra Roman, Rosa Maria; Vilchez Sanchez, Juan Antonio; Planas Cuchi, Eulalia
    World Congress of Chemical Engineering
    p. 23-27
    Presentation's date: 2009-08-25
    Presentation of work at congresses

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  • Access to the full text
    Thermal and geometrical features of jet fires  Open access

     Palacios, Adriana; Gómez-Mares, Mercedes; Casal Fabrega, Joaquim
    World Congress of Chemical Engineering
    Presentation's date: 2009-08-25
    Presentation of work at congresses

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    Abstract: In many severe accidents involving explosions or large fires, jet fires have been the first step of a domino effect sequence: a recent historical analysis has shown that among the accidents registered in the data bases, in approximately 50% of the cases in which it was a jet fire it caused another event with severe effects. However, the knowledge of jet fires essential features –behaviour, effects– is still rather poor. In this communication, the results obtained with relatively large jet fires (with flame length up to 10 m) are discussed. The fuel was propane, and both sonic and subsonic jet exit velocities were obtained from different outlet diameters. The distribution of the temperatures of the flame main axis was measured with a set of thermocouples. The jet fires were filmed with a videocamera registering visible light (VHS) and a thermographic camera (IR). The main flame geometrical features were analyzed as a function of the jet main variables, as well as the thermal effects (thermal radiation intensity as a function of distance).

  • HERRAMIENTA PARA LA EVALUACIÓN DEL RIESGO ORIGINADO POR LOS INDENCIOS

     Muñoz, Miguel Angel; Arnaldos Viger, Josep; Planas Cuchi, Eulalia; Folch Beltran, Jaime; Darbra Roman, Rosa Maria; Pastor Ferrer, Elsa; Casal Fabrega, Joaquim
    Competitive project

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