Now showing items 1-10 of 10

  • Analysis of fin-and-tube evaporators in no-frost domestic refrigerators 

    Oliet Casasayas, Carles; Pérez Segarra, Carlos David; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2010)
    Conference lecture
    Restricted access - publisher's policy
    This paper summarizes the research work carried out by the authors on domestic refrigerator no-frost evaporators. It includes an explanation of the experimental unit that is currently being constructed to test isobutane ...
  • Analysis of the dynamic behavior of refrigerated spaces using air curtains 

    Jaramillo Ibarra, Julian Ernesto; Pérez Segarra, Carlos David; Oliva Llena, Asensio; Oliet Casasayas, Carles (2009-01-01)
    Article
    Restricted access - publisher's policy
    This article is devoted to the study of air curtains applied to reduce the refrigerated chambers heat gains. The proposed strategy is based on the numerical simulation of air curtains by means of computational fluid dynamics ...
  • Analysis of vapour-compression refrigerating systems 

    Sadurní Caballol, Alexandre; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (2011)
    Conference lecture
    Restricted access - publisher's policy
    The aim of this paper is to show the authors proposal for steady state numerical simulation of Vapour-Compression Refrigerating Systems (dry expansion, liquid overfeed systems, ...). The developed tool allows using different ...
  • Comparison of the performance of falling film and bubble absorbers for air-cooled absorption systems 

    Castro González, Jesús; Oliet Casasayas, Carles; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (2009-07-01)
    Article
    Open Access
    Small 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 ...
  • Detailed analysis of fin-and-tube evaporators 

    Oliet Casasayas, Carles; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2009-09-17)
    Conference lecture
    Restricted access - publisher's policy
    This paper is devoted to the presentation of a new model for fin-and-tube evaporators, focusing on the solid core simulation and its integration with a quasi-homogeneous two-phase flow model for the in-tube refrigerant ...
  • Experimental analysis of no-frost domestic refrigerator evaporators 

    Oliet Casasayas, Carles; Pérez Segarra, Carlos David; Oliva Llena, Asensio; Rigola Serrano, Joaquim (2011)
    Conference lecture
    Restricted access - publisher's policy
    The air-to-refrigerant evaporator placed in no-frost refrigerators is a critical component because of its simultaneous treatment of both cooler and freezer air streams, which implies a strong drying process on the cooler ...
  • 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
    Restricted access - publisher's policy
    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 analysis of no-frost domestic refrigerator evaporators 

    Oliet Casasayas, Carles; Pérez Segarra, Carlos David; Oliva Llena, Asensio; Rigola Serrano, Joaquim (2011)
    Conference lecture
    Restricted access - publisher's policy
    The air-to-refrigerant evaporator placed in no-frost refrigerators is a critical component because of its simultaneous treatment of both cooler and freezer air streams, which implies a strong drying process on the cooler ...
  • Numerical modeling of simultaneous heat and moisture transfer under complex geometry for refrigeration purposes 

    Hou, Xiaofei; Rigola Serrano, Joaquim; Lehmkuhl Barba, Oriol; Oliet Casasayas, Carles; Pérez Segarra, Carlos David (Université de Poitiers, 2012)
    Conference report
    Open Access
    The aim of the paper is to gain a better insight into heat and moisture transfer in refrigerator and to do fundamental study for water evaporation and condensation in refrigeration application. The governing transport ...
  • 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
    Restricted access - publisher's policy
    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 ...