Browsing by Subject "Biocombustibles"
Now showing items 1-20 of 57
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Actituds i preferències dels consumidors vers el biodièsel: perspectives de futur
(Universitat Politècnica de Catalunya, 2011-09)
Master thesis (pre-Bologna period)
Open AccessActualment vivim en una situació d’absoluta dependència energètica; Catalunya, l’estat espanyol i la mateixa Unió Europea, són territoris incapaços d’autosatisfer la seva demanda d’energia, especialment pel que fa a les ... -
Algas, fuente sostenible de bioenergéticos
(2012-06)
Article
Restricted access - publisher's policy -
An evaluation of the life cycle cost of rapeseed oil as a straight vegetable oil fuel to replace petroleum diesel in agriculture
(2011-08)
Article
Open AccessThe 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 ... -
An experimental and numerical study on the promoting effect of Dimethyl Ether on the ignition delay time of Methane
(Universitat Politècnica de Catalunya / Karlsruher Institut für Technologie, 2013)
Bachelor thesis
Restricted access - author's decision
Covenantee: Karlsruher Institut für TechnologieUnderstanding and domination of energy is one of the goals the human mankind has always followed, but it has never had as much importance as it has nowadays. At present, more of 90 % of the total amount of energy support ... -
Anàlisi, diagnòstic i distribució de gas natural renovable
(Universitat Politècnica de Catalunya, 2022-08-24)
Bachelor thesis
Restricted access - author's decisionAquest projecte té com a objectiu exposar un dels vectors energètics amb més influència en el futur pròxim: els gasos renovables. Amb l’ajuda de diverses bases de dades i estudis, s’ha analitzat i desenvolupat cada aspecte ... -
Aplicació de cel·les de combustible microbianes pel tractament d'aigües residuals
(Universitat Politècnica de Catalunya, 2015-07)
Bachelor thesis
Open AccessEn una societat on dia rere dia la demanda d’aigua augmenta i el risc potencial de contaminar-la es encara major; on l’ús d’energia elèctrica és indispensable per a la vida moderna i l’augment del seu consum es perillosament ... -
Biocombustibles a partir de microalgas cultivadas en aguas residuales
(Grupo Tecnipublicaciones, 2012)
Article
Restricted access - publisher's policy -
Biocombustibles i crisi alimentària. Paradoxes de les polítiques energètiques.
(2008-11)
Article
Open Access -
Biodiesel from microalgae
(Universitat Politècnica de Catalunya, 2010-02)
Master thesis (pre-Bologna period)
Open AccessIn this project we will travel back in time to the nineteenth century to discover the inventor of the diesel engine, Rudolf Diesel, and his renewable fuel vision that is only now being realized. Biodiesel has received ... -
Biodiesel production using supercritical methanol/carbon dioxide mixtures in a continuous reactor
(Elsevier Science Ltd., 2011-03-01)
Article
Restricted access - publisher's policyFatty acid methyl esters (biodiesel) were produced by the transesterification of triglycerides with compressed methanol (critical point at 240 C and 81 bar) in the presence of solid acids as heterogeneous catalyst (SAC-13). ... -
Biofuel supply chain risk mitigation strategy framework: expert interview based approach
(OmniaScience, 2020-04)
Article
Open AccessPurpose: The purpose of this case study is to develop and framework the biodiesel downstream supply chain characteristics and risk mitigation strategies. Design/methodology/approach: This study employs an expert interview-based ... -
Carbon footprint and energy comparison of biodiesel produced from leather industry fleshings and rapeseed vegetal oil
(2013)
Conference report
Restricted access - confidentiality agreementBiodiesels from different sources have received significant interest, driven by concerns over oil price instability, sustainability of energy supplies and measures taken to reduce the increase in greenhouse gas emissions. This ... -
Catalytic performance of bulk and Al2O3-supported molybdenum oxide for the production of biodiesel from oil with high free fatty acids content
(2020-02)
Article
Open AccessNon-edible vegetable oils are characterized by high contents of free fatty acids (FFAs) that prevent from using the conventional basic catalysts for the production of biodiesel. In this work, solid acid catalysts are used ... -
Comparing pretreatment methods to improve the methane yield of microalgae grown in wastewater
(2013)
Conference report
Restricted access - publisher's policyMicroalgae have recently drawn attention as a potential resource for biofuels generation. In the short term, anaerobic digestion seems the most viable downstream process. Still, microalgae cell wall restrains the hydrolysis, ... -
Cosechado de microalgas cultivadas en lagunas de alta carga para el tratamiento de aguas residuales: efecto del almidón sobre la floculación y la producción de biogás
(Universitat Politècnica de Catalunya, 2015-06)
Master thesis
Open AccessLos sistemas naturales de tratamiento de aguas residuales basados en la simbiosis entre microalgas y bacterias son una alternativa sustentable atractiva principalmente si se integran en la producción de biocombustibles. ... -
Design and analysis of fuel-cell hybrid systems oriented to automotive applications
(2009-11)
Article
Open AccessHybridization with high specific energy-storage devices such as supercapacitors (SCs) has important advantages in fuel-cell (FC)-based systems. This paper presents an approach for the design and analysis of FC hybrid systems ... -
Diseño del conjunto caldera-intercambiador-secador para generar 50kW térmicos de biomasa
(Universitat Politècnica de Catalunya, 2009-09)
Master thesis (pre-Bologna period)
Restricted access - author's decisionEn este proyecto se diseña una caldera para usar biomasa como combustible y producir vapor de un fluido térmico a elevada temperatura y presión. Se pretende utilizar la más amplia gama de biomasa, tanto de origen vegetal ... -
Disseny d'una caldera/cremador de biomassa
(Universitat Politècnica de Catalunya, 2018-01)
Bachelor thesis
Restricted access - author's decision -
Disseny i realització d’un sistema expert per operar una planta de generació de biometà
(Universitat Politècnica de Catalunya, 2022-07-14)
Bachelor thesis
Restricted access - author's decisionEl control d'emissions i la cerca per alternatives sostenibles han esdevingut un repte des de la consciència humanitària sobre el canvi climàtic. Les plantes de generació de biometà són una de les tecnologies desenvolupades ... -
Economic and environmental assessment of plastic waste pyrolysis products and biofuels as substitutes for fossil-based fuels
(2021-06-24)
Article
Open AccessThe global economy is shifting toward more sustainable sources of energy. The transportation sector is a remarkable example of this fact, where biofuels have emerged as promising alternatives to traditional fossil fuels. ...
