Browsing by Author "Esteban Dalmau, Bernat"

Now showing items 1-13 of 13

    • An eddy-current-based sensor for preventing knots in metallic wire drawing processes 

      Esteban Dalmau, Bernat; Riba Ruiz, Jordi-Roger; Baquero Armans, Grau (2011-04-07)
      Article
      Open Access
      During metallic wire drawing processes, the presence of knots and the failure to detect them can lead to long production interruptions, significant economic losses and a lower quality of final product. Consequently, there ...

    • An evaluation of the life cycle cost of rapeseed oil as a straight vegetable oil fuel to replace petroleum diesel in agriculture 

      Baquero Armans, Grau; Esteban Dalmau, Bernat; Riba Ruiz, Jordi-Roger; Rius Carrasco, Antoni; Puig Vidal, Rita (2011-08)
      Article
      Open Access
      The use of straight vegetable oil (SVO) as biofuel has been recognized as a valid substitute of diesel fuel in the agricultural sector under specific circumstances. Its direct use reduces most of the chemical processes ...

    • Environmental and cost optimal design of a biomass–Wind–PV electricity generation system 

      González Juncà, Arnau; Riba Ruiz, Jordi-Roger; Esteban Dalmau, Bernat; Rius Carrasco, Antoni (2018-10-01)
      Article
      Open Access
      This work describes a methodology to optimize a grid-connected hybrid renewable energy system (HRES) that hybridizes photovoltaic, wind and forest biomass energy sources taking into account cost and environmental impact ...

    • Environmental life cycle assessment of rapeseed straight vegetable oil as self-supply agricultural biofuel 

      Baquero Armans, Grau; Esteban Dalmau, Bernat; Puig Vidal, Rita; Riba Ruiz, Jordi-Roger; Rius Carrasco, Antoni (2013-02-01)
      Article
      Open Access
      Biofuels are nowadays considered a questionable environmental alternative to fossil fuels. In that context, this work analyses the environmental impacts when introducing rapeseed on the traditional and current wheat and ...

    • Estudi econòmic de l'oli de colza com a biocarburant en explotacions agrícoles 

      Baquero Armans, Grau; Esteban Dalmau, Bernat; Puig Vidal, Rita; Riba Ruiz, Jordi-Roger; Rius Carrasco, Antoni (2010-01-01)
      Research report
      Restricted access - publisher's policy
      Actualment els biocarburants ocupen una important àrea d’estudi, essent el biodièsel i el bioetanol els més utilitzats en el nostre territori. La major part d’aquests biocarburants són de primera generació i la seva ...

    • LCA of forest chips versus diesel boilers in the Mediterranean region 

      Esteban Dalmau, Bernat; Baquero Armans, Grau; Puig Vidal, Rita; Riba Ruiz, Jordi-Roger; Rius Carrasco, Antoni (2011)
      Conference report
      Restricted access - author's decision
      ABSTRACT: Obtaining energy from forest chips is a technology widely used in many regions. There are currently many studies and applications on the use of forest biomass [1,2], mainly promoted by policies aimed to reduce ...

    • Small-scale production of straight vegetable oil from rapeseed and its use as biofuel in the Spanish territory 

      Baquero Armans, Grau; Esteban Dalmau, Bernat; Rius Carrasco, Antoni; Riba Ruiz, Jordi-Roger; Puig Vidal, Rita (2010-01)
      Article
      Open Access
      Biofuels nowadays are an important topic of study. The most significant point is the availability of bioethanol or biodiesel and their production from different raw materials. It is already known that large scale production ...

    • Sustainability assessment of straight vegetable oil used as self-supply biofuel in agriculture 

      Baquero Armans, Grau; Esteban Dalmau, Bernat; Puig Vidal, Rita; Riba Ruiz, Jordi-Roger; Rius Carrasco, Antoni (2011)
      Conference lecture
      Restricted access - author's decision
      This work proposes and analyses a model for an agricultural fuel self-supply exploitation. The model is based on the current extended crop rotation of wheat and barley in Anoia region (Catalonia, Spain). The introduction ...

    • Temperature dependence of density and viscosity of vegetable oils 

      Esteban Dalmau, Bernat; Riba Ruiz, Jordi-Roger; Baquero Armans, Grau; Rius Carrasco, Antoni; Puig Vidal, Rita (2012-07)
      Article
      Open Access
      The straight use of vegetable oils as fuel in diesel engines entails adjusting several physical properties such as density and viscosity. By adequately heating the vegetable oil before entering the injection system, its ...

    • Tècnica de grup d'experts aplicat a l'assignatura de materials 

      Esteban Dalmau, Bernat; Baquero Armans, Grau (Servei de Comunicació i Promoció UPC, 2010)
      Conference lecture
      Open Access
      L’assignatura de Ciència i Enginyeria de Materials està integrada per continguts de diferents matèries que són difícils d’impartir alhora durant un quadrimestre. Un tema que sovint es deixa per a l’última part del curs, ...

    • Use of Rapeseed Straight Vegetable Oil as Fuel Produced in Small-Scale Exploitations 

      Baquero Armans, Grau; Esteban Dalmau, Bernat; Riba Ruiz, Jordi-Roger; Puig Vidal, Rita; Rius Carrasco, Antoni (Intech, 2011-08-01)
      Part of book or chapter of book
      Open Access
      This chapter presents a method to produce rapeseed and process it to obtain rapeseed oil and rapeseed cake meal from a small-scale point of view. It also shows how rapeseed oil can be used as fuel in diesel engines for ...

    • Utilització de l'oli de colza com a biocarburant en explotacions agrícoles 

      Esteban Dalmau, Bernat; Baquero Armans, Grau; Puig Vidal, Rita; Riba Ruiz, Jordi-Roger; Rius Carrasco, Antoni (2010-01-01)
      Research report
      Restricted access - publisher's policy
      La utilització de l’oli de colza com a carburant és una tecnologia que ja s’utilitza a altres països europeus com Alemanya i Dinamarca, degut principalment a dos factors: el gasoil agrícola està menys subvencionat i el ...

    • Viabilitat tècnica i ambiental de biocombustibles: oli de colza i estella forestal 

      Esteban Dalmau, Bernat (Universitat Politècnica de Catalunya, 2011-07-06)
      Doctoral thesis
      Open Access
      La dependència actual dels combustibles fòssils en la majoria de sectors industrials i domèstics no és sostenible ni a curt ni a llarg termini. Això està obligant a plantejar alternatives a la majoria de sectors industrials ...