Experimental investigation of a cascaded organic Rankine cycle plant for the utilization of waste heat at high and low temperature levels

dc.contributor.authorLinnemann, Matthias
dc.contributor.authorPriebe, Klaus-Peter
dc.contributor.authorHeim, André
dc.contributor.authorWolff, Carsten
dc.contributor.authorVrabec, Jadran
dc.date.accessioned2020-03-27T07:07:30Z
dc.date.available2020-03-27T07:07:30Z
dc.date.issued2020-01-14
dc.description.abstractA power plant with two cascaded organic Rankine cycles (CORC) to exploit waste heat from a 800 kWe combined heat and power plant, fueled by biogas, is designed and tested. Heat from the exhaust gas is utilized with a high temperature organic Rankine cycle (HT-ORC), where toluene is employed as a working fluid. The heat discharged from the HT-ORC as well as heat from the engine coolant and additional heat from the exhaust gas is supplied to a low temperature ORC (LT-ORC) with the working fluid Solkatherm SES36. The design of the CORC and the selection of working fluids is presented, aiming at a maximum plant efficiency, but also complying with environmental, safety and practical issues. Furthermore, plant components and construction details are described. After manufacturing, initial tests are carried out, obtaining thermodynamic conditions that are close to the design of the HT-ORC, where a maximum electrical turbo-generator output of 17.5 kW is measured. The cascading of the low temperature heat sources and the transfer to the LT-ORC is shown as well as the basic operation of the LT-ORC. However, several problems occurred, such as a turbo-generator damage in the HT-ORC, a too high condensation pressure and a low working fluid mass flow rate in the LT-ORC, which are discussed together with proposed optimization measures.en
dc.identifier.eissn1879-2227
dc.identifier.issn0196-8904
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/10957
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-9847
dc.language.isoenen
dc.relation.ispartof10.14279/depositonce-9842
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subject.ddc660 Chemische Verfahrenstechnikde
dc.subject.otherorganic Rankine cycleen
dc.subject.otherORCen
dc.subject.otherCascaded ORCen
dc.subject.otherCORCen
dc.subject.otherdual loop ORCen
dc.subject.otherwaste heat recoveryen
dc.titleExperimental investigation of a cascaded organic Rankine cycle plant for the utilization of waste heat at high and low temperature levelsen
dc.typeArticleen
dc.type.versionacceptedVersionen
dcterms.bibliographicCitation.articlenumber112381en
dcterms.bibliographicCitation.doi10.1016/j.enconman.2019.112381en
dcterms.bibliographicCitation.journaltitleEnergy Conversion and Managementen
dcterms.bibliographicCitation.originalpublishernameElsevieren
dcterms.bibliographicCitation.originalpublisherplaceAmsterdam [u.a.]en
dcterms.bibliographicCitation.volume205en
tub.accessrights.dnbfreeen
tub.affiliationFak. 3 Prozesswissenschaften::Inst. Prozess- und Verfahrenstechnik::FG Thermodynamik und Thermische Verfahrenstechnikde
tub.affiliation.facultyFak. 3 Prozesswissenschaftende
tub.affiliation.groupFG Thermodynamik und Thermische Verfahrenstechnikde
tub.affiliation.instituteInst. Prozess- und Verfahrenstechnikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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