Now showing items 1-12 of 12

  • 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
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    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 ...
  • Modular simulation of vapour compression systems with an object oriented tool 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David (2013)
    Conference report
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    The objective of this work is to simulate vapour compression refrigeration systems through a modular approach by means of an object - oriented numerical tool called NEST. For this purpose, the global system is modeled as ...
  • Numerical and experimental analysis of air to water heat pumps 

    Oliet Casasayas, Carles; Sadurní Caballol, Alexandre; Ablanque Mejía, Nicolás; Rigola Serrano, Joaquim (International Energy Agency, 2014)
    Conference lecture
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    In the present work a numerical and experimental analysis of a R134a air to water heat pump is carried out. A numerical model has been developed and implemented to predict the heat pump thermal and fluid-dynamic behavior. ...
  • Numerical Model of Capillary Tubes: Enhanced Performance and Study of Non-Adiabatic Effects 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (Purdue University, 2014)
    Conference report
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    In the present work a numerical model to simulate the thermal and fluid-dynamic phenomena inside non-adiabatic capillary tubes is presented. It consists of an improved version of the distributed model detailed in Ablanque ...
  • Numerical simulation and experimental validation of vapor compression refrigerating systems: special emphasis on natural refrigerants 

    Ablanque Mejía, Nicolás (Universitat Politècnica de Catalunya, 2010-07-21)
    Doctoral thesis
    Open Access
    The aim of this work is to study the thermal and fluid-dynamic behavior of vapor compression refrigerating systems and their constitutive elements (heat exchangers, expansion devices, compressors and connecting tubes) ...
  • Numerical simulation of capillary tubes. Application to domestic refrigeration with isobutane 

    Ablanque Mejía, Nicolás; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2010)
    Conference lecture
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    This work presents the implementation and validation of a numerical model that simulates the thermal and fluiddynamic phenomena inside capillary tubes. The algorithm is based on a two-phase flow model where the governing ...
  • Numerical simulation of non-adiabatic capillary tubes. Special emphasis on the near-saturation zone 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Oliva Llena, Asensio (Elsevier, 2015-04-15)
    Article
    Open Access
    The aim of this article is to present a distributed numerical model that simulates the thermal and fluid-dynamic phenomena inside non-adiabatic capillary tubes. The resolution approach is based on a two-phase flow model ...
  • Numerical studies on passive vapor compression cycle regulating elements 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (International Institute of Refrigeration, 2015)
    Conference report
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    The present work analyses the role of both the capillary tube and the low pressure accumulator on domestic refrigerators. The main goal is to provide a better insight on how the refrigerant flow is regulated by the capillary ...
  • Simulation of Household Refrigerators with a Flexible Numerical Tool 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David (Purdue University, 2014)
    Conference report
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    This work presents a flexible numerical platform to simulate a whole household refrigeration unit taking into account both the refrigeration cycle itself and the refrigerated compartments network. The methodology implemented ...
  • Transient response in small capacity vapour compression systems. Experimental data and numerical approach 

    Ablanque Mejía, Nicolás; Rigola Serrano, Joaquim; Oliet Casasayas, Carles; Pérez Segarra, Carlos David (2011)
    Conference lecture
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    The aim of this work is to introduce a numerical approach to study the transient response of vapour compression refrigerating systems. The emphasis is put on small capacity systems working with R600a (power consumption ...
  • 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
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    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 ...
  • Virtual household refrigerators at steady-state and transient conditions. Numerical model and experimental validation 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (Purdue University, 2016)
    Conference report
    Restricted access - publisher's policy
    The current status of a flexible numerical model for vapor compression refrigeration systems for steady state and transient conditions is presented. The model simulates both the refrigeration cycle itself and the refrigerated ...