Articles producció científica> Enginyeria Mecànica

Common fault effects on a natural refrigerant, variable-speed heat pump

  • Dades identificatives

    Identificador: imarina:9241734
    Autors:
    Bellanco, IBelio, F.Valles, M.Gerber, R.Salom, J.
    Resum:
    The European heat pump market is growing every year as European legislation moves towards the use of natural refrigerants that have less global warming potential than conventional refrigerants. Even though heat pumps are very efficient, the appearance of hard-to-detect faults increases energy consumption. The present study emulated some of the most common faults on a variable-speed heat pump charged with propane. The faults tested were evaporator fouling, compressor valve leakage, liquid line restriction and refrigerant overcharge. The effect of these faults on performance and several heat pump features are described. Evaporator fouling was the fault with least COP degradation and compressor valve leakage with the most (7% and 56% COP reduction, respectively). The results are compared with the results from a comparable study. The heat pump covered the demand generated by nearly all the faults at the expense of increasing the power consumption. The features of each fault are summarized in a chart, which could be used as table for diagnosing faults.
  • Altres:

    Autor segons l'article: Bellanco, I; Belio, F.; Valles, M.; Gerber, R.; Salom, J.;
    Departament: Enginyeria Mecànica
    Autor/s de la URV: Bellanco Bellanco, Ivan / Vallès Rasquera, Joan Manel
    Paraules clau: Variable speed Variable refrigerant flow system Valve leakage System Refrigerants Refrigerant flow Pumps Performance Natural refrigerants Mode Heat pumps Heat pump systems Global warming Flow systems Fault effect Fault detection and diagnosis Fault detection Failure analysis Evaporators Energy utilization Diagnostics Common faults
    Resum: The European heat pump market is growing every year as European legislation moves towards the use of natural refrigerants that have less global warming potential than conventional refrigerants. Even though heat pumps are very efficient, the appearance of hard-to-detect faults increases energy consumption. The present study emulated some of the most common faults on a variable-speed heat pump charged with propane. The faults tested were evaporator fouling, compressor valve leakage, liquid line restriction and refrigerant overcharge. The effect of these faults on performance and several heat pump features are described. Evaporator fouling was the fault with least COP degradation and compressor valve leakage with the most (7% and 56% COP reduction, respectively). The results are compared with the results from a comparable study. The heat pump covered the demand generated by nearly all the faults at the expense of increasing the power consumption. The features of each fault are summarized in a chart, which could be used as table for diagnosing faults.
    Àrees temàtiques: Thermodynamics Química Mechanical engineering Materiais Interdisciplinar Engineering, mechanical Engenharias iv Engenharias iii Engenharias ii Ciência de alimentos Building and construction Astronomia / física
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: ivan.bellanco@estudiants.urv.cat manel.valles@urv.cat
    Identificador de l'autor: 0000-0002-0748-1287
    Data d'alta del registre: 2024-09-07
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/pii/S0140700721004114#:~:text=The%20present%20study%20emulated%20some,heat%20pump%20features%20are%20described.
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: International Journal Of Refrigeration-Revue Internationale Du Froid. 133 259-266
    Referència de l'ítem segons les normes APA: Bellanco, I; Belio, F.; Valles, M.; Gerber, R.; Salom, J.; (2022). Common fault effects on a natural refrigerant, variable-speed heat pump. International Journal Of Refrigeration-Revue Internationale Du Froid, 133(), 259-266. DOI: 10.1016/j.ijrefrig.2021.10.017
    DOI de l'article: 10.1016/j.ijrefrig.2021.10.017
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2022
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Building and Construction,Engineering, Mechanical,Mechanical Engineering,Thermodynamics
    Variable speed
    Variable refrigerant flow system
    Valve leakage
    System
    Refrigerants
    Refrigerant flow
    Pumps
    Performance
    Natural refrigerants
    Mode
    Heat pumps
    Heat pump systems
    Global warming
    Flow systems
    Fault effect
    Fault detection and diagnosis
    Fault detection
    Failure analysis
    Evaporators
    Energy utilization
    Diagnostics
    Common faults
    Thermodynamics
    Química
    Mechanical engineering
    Materiais
    Interdisciplinar
    Engineering, mechanical
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Ciência de alimentos
    Building and construction
    Astronomia / física
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