Exploració per autor "Torras Ortiz, Santiago"
Ara es mostren els items 1-20 de 27
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A 0D approach fot extended operational modeling of air ejectors in thermal systems
Schillaci, Eugenio; Oliet Casasayas, Carles; Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Vemula, Jagadish Babu; Duponcheel, Matthieu; Bartosiewicz, Yann; Planquart, Philippe (Begell House, 2023)
Text en actes de congrés
Accés restringit per política de l'editorialClassic ejector models work accurately only in normal operating conditions, i.e. when the primary flow is in supercritical conditions. Moreover, they do not take into account abnormal situations, such as when the primary ... -
Advanced analysis of thermal energy storage in CSP plants
Pérez Segarra, Carlos David; González Acedo, Ignacio; Torras Ortiz, Santiago; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2016-11-24)
Report de recerca
Accés obert -
Coupling of thermal and electrical systems for the simulation of ECS architectures
Ablanque Mejía, Nicolás; Gurumurthy, Sriram; Torras Ortiz, Santiago; Monti, Antonello; Rigola Serrano, Joaquim; Oliet Casasayas, Carles (Linköping University, 2023)
Text en actes de congrés
Accés restringit per política de l'editorialThis work is focused on the coupling of two complex models based on different underlying physics: a vapor compression refrigerating system and its electrical drive system. The main challenge was to correctly handle the ... -
Detailed numerical model for the resolution of molten salt storage tanks for CSP plants
Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio; Torras Ortiz, Santiago; Lehmkuhl Barba, Oriol (2012)
Text en actes de congrés
Accés obertConsidering the state-of-the-art in TES technologies, two-tank indirect system using molten salt is the most widespread within CSP plants. However, current techniques for design and optimization, as well as, for assessing ... -
DNS and RANS simulations of a coil heat exchanger immersed in a tank
Vera i Fernández, Jordi; Torras Ortiz, Santiago; Schillaci, Eugenio; Oliva Llena, Asensio (Begell House, 2023)
Comunicació de congrés
Accés restringit per política de l'editorialThe operation of heat exchangers in a thermal system can be described by simple heat transfer equations. The heat exchange is normally defined by a global heat transfer coefficient, which takes into account internal and ... -
Drain water heat recovery storage-type unit for residential housing
Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2016-06-25)
Article
Accés obertThe drain water heat recovery (DWHR) system is an interesting household technology to reduce energy costs and environmental impact. The objective of the utilisation of these devices is the recovery of the waste heat from ... -
Dynamic simulation of indirect air conditioning systems with optimized computational time
Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (2019)
Text en actes de congrés
Accés obert -
Experimental and numerical study of the dynamic behavior of an air to water heat pump
Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Aizpurua Udabe, Imanol; Oliet Casasayas, Carles; Rigola Serrano, Joaquim (Phetradico Communication and Publishing, 2017)
Text en actes de congrés
Accés restringit per política de l'editorialThis work is focused on studying the dynamic behavior of an air to water heat pump both experimentally and numerically. The system consists of a conventional heat pump cycle (compressor, condenser, capillary tube and ... -
Heat Exchanger Surrogates for a Vapor Compression System
Loka, Nasrulloh Ratu Bagus Satrio; Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Gurumurthy, Sriram; Monti, A.; Rigola Serrano, Joaquim; Oliet Casasayas, Carles; Couckuyt, Ivo; Dhaene, Tom (Linköping University, 2023)
Text en actes de congrés
Accés restringit per política de l'editorialGiven the computationally intensive nature of heat exchanger simulators, utilizing a data-driven surrogate model for efficiently computing the heat exchanger outputs is desirable. This study focuses on developing integrated ... -
Heat exchangers modelling and calibration for complete ECS architectures simulations
Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim (European Conference for AeroSpace Sciences (EUCASS), 2022)
Comunicació de congrés
Accés obertThe aeronautical industry is currently designing new Environmental Control System (ECS) architectures based on the More Electrical Aircraft (MEA) concept in order to improve the energy consumption efficiency inside commercial ... -
Manual de pràctiques de laboratori de Termodinàmica (v1)
Torras Ortiz, Santiago; Ablanque Mejía, Nicolás; Román Concha, Frida Rosario; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Calventus Solé, Yolanda (Universitat Politècnica de Catalunya, 2023)
Exercici de pràctiques
Accés obert -
Modelling and experimental validation of the heat accumulator in a Low Trust Cryogenic Propulsion (LTCP) system¿¿e,
Torras Ortiz, Santiago; Castro González, Jesús; Rigola Serrano, Joaquim; Morales, Sergio; Riccius, Jorg; Leiner, Johannes (2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe study of one of the components, the heat accumulator, of Low Thrust Cryogenic Propulsion systems (LTCP), is of scientific interest in the framework of ISP-1 project [1]. This device stores thermal energy from the fuel ... -
Modular object-oriented methodology for the resolution of molten salt storage tanks for CSP plants
Oliva Llena, Asensio; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Torras Ortiz, Santiago (2012)
Text en actes de congrés
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Multi-layered solid-PCM thermocline thermal storage for CSP. Numerical evaluation of its application in a 50 MWe plant
Galione Klot, Pedro Andrés; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Torras Ortiz, Santiago; Rigola Serrano, Joaquim (2015-09-01)
Article
Accés obertThermocline storage concept is considered as a possible solution to reduce the cost of thermal storage in concentrated solar power (CSP) plants. Recently, a multi-layered solid-PCM (MLSPCM) concept—consisting of a ... -
Multiphysics modeling and experimental validation of low temperature accumulator for cryogenic space propulsion systems
Torras Ortiz, Santiago; Castro González, Jesús; Rigola Serrano, Joaquim; Morales Ruíz, Sergio; Riccius, Jorg; Leiner, Johannes (2019-01-01)
Article
Accés restringit per política de l'editorialWithin the framework of Low Thrust Cryogenic Propulsion (LTCP) systems, a low-temperature accumulator acting as thermal energy storage tank is an interesting option for cyclical processes under intermittent firings avoiding ... -
Numerical evaluation of multi-layered solid-PCM thermocline-like tanks as thermal energy storage systems for CSP applications
Galione Klot, Pedro Andrés; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Torras Ortiz, Santiago; Rigola Serrano, Joaquim (2015-05)
Article
Accés obertThe two-tank system is the technology used for thermal energy storage (TES) in current concentrating solar power (CSP) plants. Thermocline storage concept has been considered for more than a decade as a possible solution ... -
Numerical modeling and experimental validation of Thermal Energy Storage tanks for propulsion systems under cryogenic conditions
Torras Ortiz, Santiago; Castro González, Jesús; Rigola Serrano, Joaquim; Morales, Sergio; Galione Klot, Pedro Andrés; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio (2014)
Comunicació de congrés
Accés restringit per política de l'editorialLow Thrust Cryogenic Propulsion (LTCP) systems [1] need a thermal energy storage acting as a heat accumulator, where a cryogenic flow of (LOx) propellant is gasified inside, under a fast transient evaporation process. The ... -
Numerical simulation of heat storage for domestic applications
Torras Ortiz, Santiago; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2011)
Comunicació de congrés
Accés restringit per política de l'editorialThe aim of this work is to perform a high-level numerical simulation platform for heat storage systems with or without phase change materials (PCM). The simulation allows to predict the thermal behavior of the aforementioned ... -
Numerical simulation of sensible and latent thermal energy storage systems
Torras Ortiz, Santiago (Universitat Politècnica de Catalunya, 2016-02-05)
Tesi
Accés obertEl objetivo principal de esta tesis es la resolución numérica de problemas de transferencia de calor y dinámica de fluidos y su aplicación para el estudio del comportamiento transitorio de sistemas térmicos de acumulación ... -
Parametric study of structured thermocline storage systems
Vera i Fernández, Jordi; Sanmartí Perona, Oriol; Torras Ortiz, Santiago; Pérez Segarra, Carlos David (2022)
Text en actes de congrés
Accés restringit per política de l'editorialA thermal accumulator system for concentrated solar power is modeled to perform a parametric study. The thermal accumulation system is a type of structured thermocline where there is a solid filler material with some ...