Cascaded dual-loop organic Rankine cycle with alkanes and low global warming potential refrigerants as working fluids
| dc.contributor.author | Abbas, Wameedh Khider Abbas | |
| dc.contributor.author | Vrabec, Jadran | |
| dc.date.accessioned | 2022-02-07T14:15:59Z | |
| dc.date.available | 2022-02-07T14:15:59Z | |
| dc.date.issued | 2021-10-21 | |
| dc.description.abstract | A cascaded dual-loop organic Rankine cycle (CD-ORC) consisting of a high-temperature ORC (HT-ORC) and a low-temperature ORC (LT-ORC) with a shared heat exchanger is studied. Thermal efficiency is investigated as a key indicator for system performance over a wide range of heat source temperature ranging from 170 °C to 330 °C. The relation between the thermal efficiency and the critical temperature of the working fluids is explored. For this purpose, six alkanes and 31 refrigerants with a low GWP (≤150) are considered as working fluids in the HT-ORC and the LT-ORC, respectively. Cyclohexane and cyclopentane are found to be suitable for the HT-ORC with a maximum thermal efficiency of 19.13% and 18.03%. The thermal efficiency of both loops is highly affected by the working fluids since it increases with the critical temperature. As a whole, the CD-ORC may achieve a total thermal efficiency of 25.24%, 24.88% and 24.60% when using the working fluid combinations cyclohexane-R1366mzz(Z), cyclohexane-R1233zd(E) or cyclohexane-butane. This indicates that low GWP refrigerants are well-suited for LT-ORC. Compared to regular ORC, CD-ORC systems may achieve a thermal efficiency that is better by around a quarter. | en |
| dc.identifier.eissn | 1879-2227 | |
| dc.identifier.issn | 0196-8904 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/16302 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-15077 | |
| dc.language.iso | en | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject.ddc | 660 Chemische Verfahrenstechnik | de |
| dc.subject.other | cascaded dual-loop ORC | en |
| dc.subject.other | low GWP refrigerants | en |
| dc.subject.other | thermal efficiency | en |
| dc.subject.other | critical temperature of working fluids | en |
| dc.title | Cascaded dual-loop organic Rankine cycle with alkanes and low global warming potential refrigerants as working fluids | en |
| dc.type | Article | en |
| dc.type.version | acceptedVersion | en |
| dcterms.bibliographicCitation.articlenumber | 114843 | en |
| dcterms.bibliographicCitation.doi | 10.1016/j.enconman.2021.114843 | en |
| dcterms.bibliographicCitation.journaltitle | Energy Conversion and Management | en |
| dcterms.bibliographicCitation.originalpublishername | Elsevier | en |
| dcterms.bibliographicCitation.originalpublisherplace | Amsterdam | en |
| dcterms.bibliographicCitation.volume | 249 | en |
| tub.accessrights.dnb | domain | * |
| tub.affiliation | Fak. 3 Prozesswissenschaften::Inst. Prozess- und Verfahrenstechnik::FG Thermodynamik und Thermische Verfahrenstechnik | de |
| tub.affiliation.faculty | Fak. 3 Prozesswissenschaften | de |
| tub.affiliation.group | FG Thermodynamik und Thermische Verfahrenstechnik | de |
| tub.affiliation.institute | Inst. Prozess- und Verfahrenstechnik | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | en |