Thermal and exergetic approach to wet type rotary kiln process and evaluation of waste heat powered ORC (Organic Rankine Cycle)

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dc.authoridUSTAOGLU, Abid/0000-0003-3391-5015
dc.contributor.authorUstaoglu, Abid
dc.contributor.authorAlptekin, Mustafa
dc.contributor.authorAkay, Mehmet Emin
dc.date.accessioned2024-09-29T15:54:58Z
dc.date.available2024-09-29T15:54:58Z
dc.date.issued2017
dc.departmentKarabük Üniversitesien_US
dc.description.abstractIn this study, the energetic and exergetic performance analysis of a rotary kiln and cooling section in a cement factory using wet method was carried out based on the actual operational data. The energy and exergy efficiencies of the wet type rotary kiln are about 46% and 35%, respectively. The results showed that a great amount of heat energy of 30.5 MW is exhausted from the chimney of rotary kiln. In order to evaluate recovery capacity of exhausted gas, Organic Rankine Cycle (ORC) was considered and its energetic and exergetic performance were evaluated for isentropic and dry type fluids for different conditions. Isentropic fluid, R245fa shows the best performance while the dry fluid, R600a has the lowest performance. For condensation temperature of 303 K and evaporation pressure of 1500 kPa, the thermal and exergy efficiencies of R600a are 9.8% and 21.7% while the thermal and exergy efficiencies of R245fa are 13% and 29%, respectively. Isentropic fluids, R245fa, R142b can be used at high evaporator pressures and low condenser temperatures as R600 and R600a are not appropriate after a certain pressure since the efficiency remain stable. The exergy destruction rates in heat exchanger and evaporator are about 80% of the total exergy destruction. (C) 2016 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.applthermaleng.2016.10.053
dc.identifier.endpage295en_US
dc.identifier.issn1359-4311
dc.identifier.scopus2-s2.0-84992315951en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage281en_US
dc.identifier.urihttps://doi.org/10.1016/j.applthermaleng.2016.10.053
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4396
dc.identifier.volume112en_US
dc.identifier.wosWOS:000394831500029en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofApplied Thermal Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectEnergy and exergy analysisen_US
dc.subjectWet type rotary kilnen_US
dc.subjectCement productionen_US
dc.subjectHeat recoveryen_US
dc.subjectPower cycleen_US
dc.subjectOrganic Rankine Cycleen_US
dc.titleThermal and exergetic approach to wet type rotary kiln process and evaluation of waste heat powered ORC (Organic Rankine Cycle)en_US
dc.typeArticleen_US

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