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Optimisation of high-temperature heat pump cascades with internal heat exchangers using refrigerants with low global warming potential
dc.contributor.author | Mota-Babiloni, Adrián | |
dc.contributor.author | Mateu-Royo, Carlos | |
dc.contributor.author | Navarro-Esbrí, Joaquín | |
dc.contributor.author | Moles, Fran | |
dc.contributor.author | Amat-Albuixech, Marta | |
dc.contributor.author | Barragán Cervera, Angel | |
dc.date.accessioned | 2018-12-04T13:29:27Z | |
dc.date.available | 2018-12-04T13:29:27Z | |
dc.date.issued | 2018-12-15 | |
dc.identifier.citation | MOTA-BABILONI, Adrián; MATEU-ROYO, Carlos; NAVARRO ESBRÍ, Joaquín; MOLÉS, Francisco; AMAT ALBUIXECH, Marta; BARRAGÁN CERVERA, Ángel (2018). Optimisation of high-temperature heat pump cascades with internal heat exchangers using refrigerants with low global warming potential. Energy, v. 165, Part B, p. 1248-1258 | ca_CA |
dc.identifier.uri | http://hdl.handle.net/10234/177871 | |
dc.description.abstract | High-temperature heat pumps (HTHPs) based on vapour compression can be used for industrial low-grade waste heat valorisation, which can aid in mitigating climate change. Currently, the performance of HTHPs operating at high-temperatures lifts is limited; therefore, advanced configurations become an opportunity for their utilization. This paper presents an HTHP cascade with configurations of internal heat exchangers (IHXs) that uses low GWP refrigerants in both high-stage (HS) (HCFO-1233zd(E), HFO-1336mzz(Z), HCFO-1224yd(Z), and pentane) and low- stage (LS) (HFO-1234yf, HFO-1234ze(E), butane, isobutane, and propane) cycles. Prior to the analysis and presentation of results, an optimisation of the operating conditions is performed based on intermediate temperature and IHX effectiveness in both stage cycles. Results indicate that butane and isobutane appear to be the most convenient working LS fluids from the point of view of coefficient of performance (COP). The highest system performance is obtained using pentane and HFO-1336mzz(Z) in the HS cycle. Compared to third-generation refrigerants (HFC- 245fa/HFC-134a), a slight COP improvement is obtained using HCFO-1233zd(E), and HCFO- 1224yd(Z). A comparable or even lower volumetric flow rate at the HS compression suction is also observed. The use of pentane/butane achieved maximum COP (3.15), which is a 13% improvement compared to COP obtained when HFC-245fa/HFC-134a is employed. | ca_CA |
dc.format.extent | 24 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.relation.isPartOf | Energy (2018), v. 165, Part B | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/CNE/1.0/ | * |
dc.subject | Low-grade waste heat recovery | ca_CA |
dc.subject | Hydrofluoroolefin (HFO) | ca_CA |
dc.subject | Liquid-to-suction heat exchanger | ca_CA |
dc.subject | Energy efficiency | ca_CA |
dc.subject | Vapour compression system | ca_CA |
dc.subject | Climate change mitigation | ca_CA |
dc.title | Optimisation of high-temperature heat pump cascades with internal heat exchangers using refrigerants with low global warming potential | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1016/j.energy.2018.09.188 | |
dc.relation.projectID | 1) Financial support of the Spanish Government under the ENE2015-70610-R and RTC-2015-4193-3 projects, and grant FJCI-2016-28324; 2) University Jaume I of Spain for their financial support under project P1-1B2015-38. | ca_CA |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | https://www.sciencedirect.com/science/article/pii/S0360544218319601 | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
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