Browsing by Subject "Refrigeració"
Now showing items 1-20 of 68
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A comprehensive simulation tool for adsorption-based solar-cooled buildings. Control strategy based on variable cycle duration
(2021-01-15)
Article
Open AccessAdsorption cooling systems (ACS) may contribute towards a sustainable way of satisfying the increasing cooling demand, as they utilize solar thermal energy and employ non-ozone-depleting substances. Apart from the intrinsic ... -
A generalized computational model for the simulation of adsorption packed bed reactors – Parametric study of five reactor geometries for cooling applications
(2019-02-01)
Article
Open AccessEnvironmental concerns regarding global warming and ozone depletion urge towards sustainable solutions for satisfying the increasing cooling demand. Adsorption cooling technology could form part of the solution since it ... -
ALBA synchrotron cooling system evaluation using flowmaster®
(2015-06-22)
Article
Open AccessALBA is a 3rd generation Synchrotron Light facility in Barcelona, Spain. Made up of a complex network of electron accelerators that produce synchrotron light, it allows for the visualization of the atomic structure of ... -
Anàlisi i optimització d'un sistema d'intercanvi de calor per a ús industrial i residencial mitjançant eines de simulació CFD, CAD i CAE
(Universitat Politècnica de Catalunya, 2022-07-29)
Bachelor thesis
Open Access
Covenantee: Politecnico di MilanoEn aquest treball de tesi analitzarem i optimitzarem el flux d'aire en un intercanviador de calor industrial de l'empresa LuVe Group. En la tesi anterior a aquesta, es va modelar el comportament de l'intercanviador d'aire ... -
Anàlisi i tractament de l’aigua en circuits de vapor i d’aigua de refrigeració del motor
(Universitat Politècnica de Catalunya, 2015-10)
Bachelor thesis
Open Access -
Análisis de funcionamiento y optimización de un sistema de refrigeración para una planta de colorantes
(Universitat Politècnica de Catalunya, 2011-01-12)
Master thesis (pre-Bologna period)
Open AccessL‘objectiu de d‘aquest projecte es avaluar el funcionament el funcionament, estat actual i proposar millores per la torre de refrigeració de tir induït de flux a contracorrent existent pel refredament de les aigües procedent ... -
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, ... -
CO2LD: an educational innovation project for advanced vocational training in refrigeration
(OmniaScience, 2013-12)
Article
Open AccessRefrigeration is one of the technology sectors that has suffered the most changes in the last twenty years, because of the negative impact of the fluids used in the refrigeration cycles, i.e., refrigerants, due to their ... -
Comparison of the performance of falling film and bubble absorbers for air-cooled absorption systems
(2009-07-01)
Article
Open AccessSmall capacity, air-cooled NH3–H2O absorption systems are becoming more attractive in applications where the input energy can be obtained for free (e.g., solar energy, exhaust gases of engines, etc.), due to the increasing ... -
Computational investigation of the hexagonal honeycomb adsorption reactor for cooling applications: Honeycomb adsorption reactor for cooling
(2022-02-05)
Article
Open AccessAdsorption cooling is a sustainable technology, since it can utilize solar energy or waste heat, while employing substances without ozone depletion and global warming potential. The adsorption reactor design is determinant ... -
Construcció i validació experimental de prototip per a la obtenció de llot semi sòlid
(Universitat Politècnica de Catalunya, 2016-09-16)
Bachelor thesis
Restricted access - confidentiality agreement -
Control strategy approach based on the operational results of a small capacity direct air -cooled LiBr -Water absorption chiller
(International Solar Energy Society, 2017)
Conference lecture
Open AccessThe scope of this paper is to give a short overview of the state of the art regarding control strategies, identify the role of different operating conditions, and provide useful suggestions for the design and operation of ... -
Creation of a new led's refigeration system for outdoor luminaries. Creation of a company that builds and sells this system and study of all his organization
(Universitat Politècnica de Catalunya / Tallinna Tehnikaülikool (Tallin University of Technology), 2010)
Master thesis (pre-Bologna period)
Open AccessNowadays, leds are used in many different objects, the problem with this modern invention is that keds warm themselves too much and that's why they need a refrigeration system very big to avoid that leds burnt a cause of ... -
Data analytics for performance evaluation under uncertainties applied to an industrial refrigeration plant
(Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
Article
Open AccessArtificial intelligence has bounced into industrial applications contributing several advantages to the field and have led to the possibility to open new ways to solve many actual problems. In this paper, a data-driven ... -
Design and optimization of the cooling system for an electrical Formula Student car’s battery pack
(Universitat Politècnica de Catalunya, 2021-07-06)
Bachelor thesis
Restricted access - author's decisionEn un vehicle elèctric de Fórmula Student, la gestió correcta de les temperatures de les cel·les del pack de bateries és fonamental tant per a la seva seguretat com per al seu rendiment. Mitjançant un estudi numèric i amb ... -
Design of a thermoelectric generator with fast transient respose
(2015-04-13)
Article
Open AccessThermoelectric modules are currently used both in Peltier cooling and in Seebeck mode for electricity generation. The developments experienced in both cases depend essentially on two factors: the thermoelectric properties ... -
Development of Innovative Heat Sinks for Power Electronics Cooling within the More Electrical Aircraft
(European Conference for AeroSpace Sciences (EUCASS), 2019)
Conference report
Open Access -
Dimensionat de una instal·lació frigorifica per un celler de cava
(Universitat Politècnica de Catalunya, 2012-10-24)
Master thesis (pre-Bologna period)
Open Access -
Diseño de un sistema electrónico de control para láseres sintonizables por temperatura
(Universitat Politècnica de Catalunya, 2020-10)
Bachelor thesis
Restricted access - author's decisionLaser technology has undergone significant advances in recent years, one of them being the development of tunable lasers, whose wavelength can be modified at will. These devices have applications in spectroscopy, interferometry, ... -
Diseño y modelación del sistema de refrigeración de una pila de combustible
(Universitat Politècnica de Catalunya, 2017-01-10)
Bachelor thesis
Restricted access - author's decisionEn este presente proyecto se ha diseñado y modelado cuatro configuraciones de disipadores de calor mediante aletas de refrigeración en COMSOL, se ha analizado la transferencia de calor en estos dispositivos mediante ...
