Semi-empirical and environmental assessment of the low GWP refrigerant HCFO-1224yd(Z) to replace HFC-245fa in high temperature heat pumps
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INVESTIGACIONMetadata
Title
Semi-empirical and environmental assessment of the low GWP refrigerant HCFO-1224yd(Z) to replace HFC-245fa in high temperature heat pumpsDate
2021-02-22Publisher
ElsevierISSN
0140-7007Bibliographic citation
MATEU-ROYO, Carlos; ADRIÁN, MOTA-BABILONI; NAVARRO-ESBRÍ, Joaquín. Semi-empirical and environmental assessment of the low GWP refrigerant HCFO-1224yd (Z) to replace HFC-245fa in high temperature heat pumps. International Journal of Refrigeration, 2021.Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/acceptedVersionSubject
Abstract
This paper investigates a promising low-GWP refrigerant, HCFO-1224yd(Z), as an environmentally friendly replacement for HFC-245fa in high temperature heat pumps (HTHPs). First, the thermophysical properties of both ... [+]
This paper investigates a promising low-GWP refrigerant, HCFO-1224yd(Z), as an environmentally friendly replacement for HFC-245fa in high temperature heat pumps (HTHPs). First, the thermophysical properties of both fluids were analysed, and a single-stage cycle with Internal Heat Exchanger (IHX) was modelled. Then, a semi-empirical drop-in test replacement was assessed. The low-temperature reservoir was fixed at 80 °C, whereas the high-temperature reservoir was varied from 110 to 140 °C to cover a wide range of industrial applications. The theoretical and semi-empirical results illustrate that HCFO-1224yd(Z) heat- ing capacity becomes around 8.9% lower than HFC-245fa. However, the higher suction density of HCFO- 1224yd(Z) compared to the reference fluid can compensate for this effect, reducing the compressor power consumption. Hence, HCFO-1224yd(Z) presents a COP increase up to 4.5% compared to the reference fluid. At high-temperature reservoir of 140 °C, HCFO-1224yd(Z) shows a COP of 2.33, whereas HFC-245fa only reaches 2.23. The carbon footprint assessment illustrates a significant equivalent CO 2,eq emissions reduc- tion down to 90%, depending on the country (carbon emission factor). Therefore, HCFO-1224yd(Z) can be used as an alternative to HFC-245fa in HTHP systems due to its beneficial operating, energetic and environmental characteristics. [-]
Is part of
International Journal of Refrigeration 127 (2021) 120–127Funder Name
Gobierno de España | Universitat Jaume I | Generalitat Valenciana
Project code
RTC-2017-6511 | UJI-B2018-24 | PREDOC/2017/41 | APOSTD/2020/032
Rights
0140-7007/© 2021 Elsevier Ltd and IIR. All rights reserved.
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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