Sánchez-Moreno-Giner, L.; Methler, T.; Barceló Ruescas, F.; Gonzálvez-Maciá, J. (2022). Refrigerant charge distribution in brine-to-water heat pump using R290 as refrigerant. International Journal of Refrigeration. 145:158-167. https://doi.org/10.1016/j.ijrefrig.2022.10.013
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/203277
Título:
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Refrigerant charge distribution in brine-to-water heat pump using R290 as refrigerant
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Otro titulo:
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Distribution de la charge en frigorigène dans une pompe à chaleur saumure/eau utilisant le
R290 comme frigorigène
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Autor:
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Sánchez-Moreno-Giner, Luis
Methler, Timo
Barceló Ruescas, Francisco
Gonzálvez-Maciá, José
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Entidad UPV:
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Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials
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Fecha difusión:
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Resumen:
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[EN]
This paper presents experimental results from a brine-to-water heat pump used for space heating at low tem-perature, with a low refrigerant charge of R290 (propane). Performance and refrigerant distribution were ...[+]
[EN]
This paper presents experimental results from a brine-to-water heat pump used for space heating at low tem-perature, with a low refrigerant charge of R290 (propane). Performance and refrigerant distribution were ana-lysed in every test condition studied. Performance results show a declared heating capacity of 9.5 kW, obtaining a specific capacity (C-c) of 48.7 kW rmkg(-1) and a seasonal coefficient of performance of 4.01. In terms of refrigerant distribution, at the nominal point, 41.5% of the refrigerant is located in the compressor, mainly dissolved in the oil, and the rest is separated almost evenly in both heat exchangers, 23.9% in the condenser and 27.8% in the evaporator; having the lines and accessories (pneumatic-ball valves) the remaining 6.8%. Due to this fact, reducing oil solubility by heating the crankcase or increasing the superheat (SH) has a positive impact on the refrigerant charge reduction, but it also affects the coefficient of performance.
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Palabras clave:
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R290
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Low refrigerant charge
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Refrigerant distribution
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Brine-to-water heat pump
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Frigorigènes naturels
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Faible charge en frigorigène
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Distribution du frigorigène
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Décarbonation
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Pompe `à chaleur saumure-eau
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Derechos de uso:
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Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
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Fuente:
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International Journal of Refrigeration. (issn:
0140-7007
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DOI:
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10.1016/j.ijrefrig.2022.10.013
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Editorial:
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Elsevier
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Versión del editor:
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https://doi.org/10.1016/j.ijrefrig.2022.10.013
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Código del Proyecto:
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-115665RB-I00/ES/DESCARBONIZACION DE EDIFICIOS E INDUSTRIAS CON SISTEMAS HIBRIDOS DE BOMBA DE CALOR/
info:eu-repo/grantAgreement/UPV//PAID-01-17/
info:eu-repo/grantAgreement/GVA//AICO%2F2021%2F078/
info:eu-repo/grantAgreement/BMWK//FKZ 03EN4001A (LC150)/
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Agradecimientos:
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The authors would like to acknowledge the Spanish "MINISTERIO DE CIENCIA E INNOVACION", through the project ref- PID2020-115665RB-I00 "Descarbonizacion de Edificios e Industrias con sistemas híbridos de bomba de Calor" for ...[+]
The authors would like to acknowledge the Spanish "MINISTERIO DE CIENCIA E INNOVACION", through the project ref- PID2020-115665RB-I00 "Descarbonizacion de Edificios e Industrias con sistemas híbridos de bomba de Calor" for the given support. The authors also would like to acknowledge the "Conselleria dInnovacio, Universitats, Ciencia i Societat Digital de la Generalitat Valenciana" through the Project "AICO/2021/078" for the given support. Also, the study presented in this paper received funding from the German Federal Ministry of Economic Affairs and Climate Action (BMWK) under the grant agreement numbers FKZ 03EN4001A (LC150) . Lastly, the experimental campaign was performed during an international stay financed by "Ayudas para movilidad de estudiantes de Doctorado de la Universitat Politecnca de Valencia" during the doctoral thesis financed by (PAID -01-17)
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Tipo:
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Artículo
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