Modelling and evaluation of a high-temperature heat pump two-stage cascade with refrigerant mixtures as a fossil fuel boiler alternative for industry decarbonization
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Otros documentos de la autoría: Navarro-Esbrí, Joaquín; Fernández-Moreno, Adrián; Mota-Babiloni, Adrián
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Modelling and evaluation of a high-temperature heat pump two-stage cascade with refrigerant mixtures as a fossil fuel boiler alternative for industry decarbonizationFecha de publicación
2022-05-22Editor
ElsevierCita bibliográfica
NAVARRO-ESBRÍ, Joaquín; FERNÁNDEZ-MORENO, Adrián; MOTA-BABILONI, Adrián. Modelling and evaluation of a high-temperature heat pump two-stage cascade with refrigerant mixtures as a fossil fuel boiler alternative for industry decarbonization. Energy, 2022, p. 124308.Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
High-Temperature Heat Pump (HTHP) is becoming a feasible technology for decarbonization, being proposed as an alternative to fossil fuel boilers in several industrial, commercial, and urban applications. This work ... [+]
High-Temperature Heat Pump (HTHP) is becoming a feasible technology for decarbonization, being proposed as an alternative to fossil fuel boilers in several industrial, commercial, and urban applications. This work presents a semi-empirical assessment of a two-stage cascade cycle for HTHP applications to produce hot water up to 150 °C from a water flow at 35 °C and 25 °C. This work uses experimental results of two single-stage heat pump prototypes (R-1234ze(E) and R-1336mzz(Z)) with different temperature lifts as baseline inputs. The energy performance of the proposed two stage cascade HTHP is evaluated through a semi-empirical model, including several novel mixtures for both stages. Up to 14% of COP increase was reached respect to the baseline when using R-152a/600 (0.08/0.92) and R-1233zd(E)/161 (0.88/0.12) for the low stage and high stage, respectively. The VHC increases 30% with the selected combinations, but the discharge temperature also rises. Direct CO2e emissions were negligible by using low GWP refrigerants. The country proposed for the two-stage cascade HTHP greatly influences greenhouse gas indirect CO2e emissions. It is estimated that in countries carbon emission factor lower than 0.35 kgCO2e kWh−1 the mixtures selected would reduce the emissions compared to fossil fuel boilers for the same heating capacity. [-]
Publicado en
Energy, Vol. 254, Part B, September 2022Entidad financiadora
Spanish Government | Universitat Jaume I | MCIN/AEI/10.13039/501100011033
Código del proyecto o subvención
RTC-2017-6511-3 | UJI-B2018-24 | IJC2019-038997-I
Derechos de acceso
© 2022 The Authors. Published by Elsevier Ltd.
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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