Browsing by Author "Torras Ortiz, Santiago"Més informacióMés informació

Now showing items 1-18 of 18

    • 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)
      Research report
      Open Access

    • 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
      Open Access
      The 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)
      Conference report
      Open Access

    • 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)
      Conference report
      Restricted access - publisher's policy
      This 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 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)
      Conference lecture
      Restricted access - publisher's policy
      The 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 ...

    • 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)
      Conference report
      Restricted access - publisher's policy
      The 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)
      Conference report
      Restricted access - publisher's policy

    • 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
      Open Access
      Thermocline 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
      Restricted access - publisher's policy
      Within 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
      Open Access
      The 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)
      Conference lecture
      Restricted access - publisher's policy
      Low 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 sensible and latent thermal energy storage systems 

      Torras Ortiz, Santiago (Universitat Politècnica de Catalunya, 2016-02-05)
      Doctoral thesis
      Open Access
      El 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 two-tank TES systems for CSP plants 

      Torras Ortiz, Santiago; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2015-05)
      Article
      Open Access
      The two-tank thermal energy storage (TES) system is the most used technology for storage in concentrating solar power (CSP) plants. This work focuses on a parametric study, which aims to identify the most important parameters ...

    • Thermal System Oriented Simulation of Aircraft Electrical Environmental Control Systems Including its Electric Coupling 

      Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (European Conference for AeroSpace Sciences (EUCASS), 2019)
      Conference report
      Open Access
      A flexible numerical platform based on libraries has been developed within the Dymola/Modelica framework to simulate Environmental Control Systems (ECS). The goal was to build up a flexible tool to analyse complex systems ...

    • Thermal Systems Oriented Two-Phase Heat Exchanger Models. Focus on Numerical Robustness. 

      Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim (Purdue University, 2022)
      Conference lecture
      Restricted access - publisher's policy
      The simulation of complex refrigeration architectures (that usually include vapor compression cycles) provides useful information for design, study and optimization purposes. Such arrangements may include several interconnected ...

    • Thermo-mechanical parametric analysis of packed-bed thermocline energy storage tanks 

      González Acedo, Ignacio; Pérez Segarra, Carlos David; Lehmkuhl Barba, Oriol; Torras Ortiz, Santiago; Oliva Llena, Asensio (2016-10-01)
      Article
      Open Access
      A packed-bed thermocline tank represents a proved cheaper thermal energy storage for concentrated solar power plants compared with the commonly-built two-tank system. However, its implementation has been stopped mainly due ...

    • Transient Thermal Management of Vapor Cycles to Simulate Aircraft Electrical Environment Control Systems 

      Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (International Institute of Refrigeration, 2019)
      Conference lecture
      Restricted access - publisher's policy
      A Modelica library has been developed to simulate both transient and steady state of vapor cycle systems (VCS) integrated within Electrical Environment Control Systems (E-ECS) architectures applied in the thermal management ...

    • Vapor Compression System Modelica Library for Aircraft ECS 

      Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (Purdue University, 2018)
      Conference report
      Restricted access - publisher's policy
      This work presents a Modelica library aimed to simulate vapor compression systems at both steady and transient conditions. The simulation of these specific systems is particularly challenging ...