Browsing by Subject "Calor -- Transmissió"
Now showing items 1-20 of 131
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205-00718 study for the computational resolution of conservation equations of mass, momentum and energy: possible application to different aeronautical and industrial engineering problems, case 60A
(Universitat Politècnica de Catalunya, 2020-09)
Bachelor thesis
Open Access -
A conserved phase-field system based on the Maxwell–Cattaneo law
(2013-06-01)
Article
Restricted access - publisher's policyOur aim in this paper is to study a generalization of the conserved Caginalp phasefield system based on the Maxwell–Cattaneo law for heat conduction and endowed with Neumann boundary conditions. In particular, we obtain ... -
A level-set method for interfacial heat or mass transfer in two-phase flows
(International Centre for Numerical Methods in Engineering (CIMNE), 2018)
Conference lecture
Restricted access - publisher's policyA level-set model is proposed for simulating interfacial heat or mass transfer in two-phase flows. The Navier-Stokes equations as well as the heat transfer or mass transfer equations are discretized using a finite-volume ... -
A level-set model for mass transfer in bubbly flows
(2019-08-01)
Article
Open AccessA level-set model is presented for simulating mass transfer or heat transfer in two-phase flows. The Navier-Stokes equations and mass transfer (or heat transfer) equation are discretized using a finite volume method on a ... -
A one-phase Stefan problem with size-dependent thermal conductivity
(2018-07-02)
Article
Open AccessIn this paper a one-phase Stefan problem with size-dependent thermal conductivity is analysed. Approximate solutions to the problem are found via perturbation and numerical methods, and compared to the Neumann solution for ... -
A suitable criterion for tube sizing in reverse cycle machines
(Universitat Politècnica de Catalunya / Université de Lorraine, 2011)
Master thesis (pre-Bologna period)
Open AccessTo find the optimal diameters for the connecting tubes in reverse cycle machines we use in this paper a new criterion that we have recently developed, the Ecological Cost, “EC" (Kheiri et al. 2011) EC includes the environmental ... -
Advanced study for the numerical approximation of Navier-Stokes equations by implementation of a finite volume solver
(Universitat Politècnica de Catalunya, 2019-10)
Bachelor thesis
Restricted access - author's decision
Covenantee: Rheinisch-Westfälische Technische Hochschule AachenThe objective of the thesis is to build different fluid solvers from scratch, whereby the following three cases are considered: Resolution of diffusion problems, convection-diffusion and Navier-Stokes equations. In the ... -
Advanced study for the numerical resolution of the Navier-Stokes equations. Particular case: thermal comfort
(Universitat Politècnica de Catalunya, 2021-02-12)
Master thesis
Open AccessThis report aspires to deepen in the field of Computational Fluid Dynamics (CFD) and detail the steps to convert a physical phenomenon into a solvable domain. Four parts can be clearly differenced along this thesis. First, ... -
An immersed boundary method to conjugate heat transfer problems in complex geometries. Application to an automotive antenna
(2019-02-05)
Article
Open AccessConsidering that the most common reason for electronic component failure is the excessive temperature level, an efficient thermal management design can prolong the operating life of the equipment, while also increasing its ... -
Analysis and simulation of a thermosolar heating system using phase change material as the flowing fluid
(Universitat Politècnica de Catalunya / Politecnico di Torino, 2011)
Master thesis (pre-Bologna period)
Restricted access - author's decisionThe increasing gas emissions and the continuous rise of fuel prices are the main reasons why new solutions for world energy demand are searched. Using Europe as an indicator, every year more than thirty per cent of the oil ... -
Analysis of energy exchange in system with varyng materials and conditions
(Universitat Politècnica de Catalunya, 2019-10-31)
Master thesis
Open Access
Covenantee: Vysoké učení technické v BrněExperimental work on a fully equipped pilot-plant operating absorber fluid scrubbler. The student will participate in current live research regarding the separation of gaseous pollutants from the air. -
Analysis of heat transfer and fluid flow in thermal equipment
(Universitat Politècnica de Catalunya, 2019-10-09)
Master thesis
Open AccessHeat transfer and flow fluid in thermal equipment is a concerned and basic topic in thermal area. The main objective of this thesis is tocultivate basic skills of analyzing athermal problemand selecting an appropriate ... -
Analysis of the Applicability of Non-Destructive Techniques to Determine In Situ Thermal Transmittance in Passive House Façades
(Multidisciplinary Digital Publishing Institute, 2020-12-01)
Article
Open AccessWithin the European framework, the passive house has become an essential constructive solution in terms of building efficiency and CO2 reduction. However, the main approaches have been focused on post-occupancy surveys, ... -
Analysis of the geometric and radiative characteristics of hydrocarbon pool-fires
(2004-08-01)
Article
Restricted access - publisher's policyThe radiation intensity at a given distance depends mainly on the radiative power and the flame’s size and shape. Considerable literature describing both experimental and theoretical studies of thermal radiation from ... -
Analysis of the Near-Wall Flow in a Turbine Cascade by Splat Visualization
(2020-01)
Article
Open AccessTurbines are essential components of jet planes and power plants. Therefore, their efficiency and service life are of central engineering interest. In the case of jet planes or thermal power plants, the heating of the ... -
Aplicación de los métodos numéricos basados en volúmenes finitos para la resolución de problemas de mecánica de fluidos y sólidos termoelásticos
(Universitat Politècnica de Catalunya, 2013-10)
Master thesis (pre-Bologna period)
Open AccessEste proyecto representa una introducción al análisis numérico computacional para resolver problemas dinámicos con transferencia de calor en medios continuos. El objetivo es, en primer lugar, implementar un código orientado ... -
Automated data-processing technique: 2D Map for identifying the distribution of the U-value in building elements by quantitative internal thermography
(2021-02)
Article
Open AccessComputing a 2D colour map of average U-values pixel-by-pixel could become a challenging task in terms of complexity and time, especially for entire façades under the influence of anomalies. In a quantitative IRT test, a ... -
Caracterització i simulació CFD-1D del procés d'evaporació en dipòsits de transport Heavy-Duty
(Universitat Politècnica de Catalunya, 2018-06-28)
Bachelor thesis
Restricted access - author's decisionL’objectiu d’aquest treball és estudiar i caracteritzar el comportament del Gas Natural Liquat a l’interior del dipòsit de combustible d’un camió de transport Heavy-Duty quan aquest està estacionat. Quan el camió està ... -
CFD Studies of the convective heat transfer coefficients and pressure drops in geometries applied to water cooling channels of the crotch absorbers of ALBA synchrotron light source
(2022)
Conference report
Open AccessCurrently, the storage ring vacuum chambers of ALBA are protected by 156 crotch absorbers made of copper and Glidcop. After more than 10 years of operation as a thirdgeneration light source, the ALBA II project arose, ... -
CFD studies of the convective heat transfer coefficients and pressure drops in geometries applied to water cooling channels of the crotch absorbers of ALBA Synchrotron light source
(Universitat Politècnica de Catalunya, 2022-07-14)
Bachelor thesis
Open AccessCurrently, the storage ring vacuum chambers of ALBA are protected by 156 crotch absorbers made of copper and Glidcop. After more than 10 years of operation as a third-generation light source, the ALBA II project arose, ...
