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COMPARATIVE ANALYSIS OF FLUIDS USED IN ORGANIC RANKINE CYCLES.

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Title: COMPARATIVE ANALYSIS OF FLUIDS USED IN ORGANIC RANKINE CYCLES.
Authors: Mihai, Cruceru1, Bogdan, Diaconu1, Lucica, Anghelescu1
Source: Annals of 'Constantin Brancusi' University of Targu-Jiu. Engineering Series / Analele Universităţii Constantin Brâncuşi din Târgu-Jiu. Seria Inginerie. 2025, Issue 3, p72-77. 6p.
Subjects: Working fluids, Thermal efficiency, Energy consumption, Thermodynamics, Comparative studies, Rankine cycle
Abstract: Organic Rankine Cycles (ORCs) offer a viable path to converting low-grade heat sources—such as waste heat from industrial processes, vehicle exhaust, solar irradiation, and geothermal energy—into electrical power. The choice of working fluid critically influences performance, safety, environmental impact, and economic viability. This study provides a comparative analysis of ORC fluids, focusing on classifications (dry, wet, isentropic), their thermodynamic behavior on T-s diagrams, and how these properties interact with evaporation and condensation processes to determine system efficiency and reliability Performance metrics—thermal efficiency, exergy efficiency, net work output, and irreversibility—are evaluated across representative fluids (e.g., R123, R134a, R11, R141B, R227ea/R245fa) and operating conditions [ABSTRACT FROM AUTHOR]
Copyright of Annals of 'Constantin Brancusi' University of Targu-Jiu. Engineering Series / Analele Universităţii Constantin Brâncuşi din Târgu-Jiu. Seria Inginerie is the property of Universitatea Constantin Brancusi din Targu-Jiu and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 189896402
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: COMPARATIVE ANALYSIS OF FLUIDS USED IN ORGANIC RANKINE CYCLES.
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  Data: <searchLink fieldCode="AR" term="%22Mihai%2C+Cruceru%22">Mihai, Cruceru</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bogdan%2C+Diaconu%22">Bogdan, Diaconu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lucica%2C+Anghelescu%22">Lucica, Anghelescu</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Annals+of+'Constantin+Brancusi'+University+of+Targu-Jiu%2E+Engineering+Series+%2F+Analele+Universităţii+Constantin+Brâncuşi+din+Târgu-Jiu%2E+Seria+Inginerie%22">Annals of 'Constantin Brancusi' University of Targu-Jiu. Engineering Series / Analele Universităţii Constantin Brâncuşi din Târgu-Jiu. Seria Inginerie</searchLink>. 2025, Issue 3, p72-77. 6p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Working+fluids%22">Working fluids</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+efficiency%22">Thermal efficiency</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink><br /><searchLink fieldCode="DE" term="%22Thermodynamics%22">Thermodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Comparative+studies%22">Comparative studies</searchLink><br /><searchLink fieldCode="DE" term="%22Rankine+cycle%22">Rankine cycle</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Organic Rankine Cycles (ORCs) offer a viable path to converting low-grade heat sources—such as waste heat from industrial processes, vehicle exhaust, solar irradiation, and geothermal energy—into electrical power. The choice of working fluid critically influences performance, safety, environmental impact, and economic viability. This study provides a comparative analysis of ORC fluids, focusing on classifications (dry, wet, isentropic), their thermodynamic behavior on T-s diagrams, and how these properties interact with evaporation and condensation processes to determine system efficiency and reliability Performance metrics—thermal efficiency, exergy efficiency, net work output, and irreversibility—are evaluated across representative fluids (e.g., R123, R134a, R11, R141B, R227ea/R245fa) and operating conditions [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Annals of 'Constantin Brancusi' University of Targu-Jiu. Engineering Series / Analele Universităţii Constantin Brâncuşi din Târgu-Jiu. Seria Inginerie is the property of Universitatea Constantin Brancusi din Targu-Jiu and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 6
        StartPage: 72
    Subjects:
      – SubjectFull: Working fluids
        Type: general
      – SubjectFull: Thermal efficiency
        Type: general
      – SubjectFull: Energy consumption
        Type: general
      – SubjectFull: Thermodynamics
        Type: general
      – SubjectFull: Comparative studies
        Type: general
      – SubjectFull: Rankine cycle
        Type: general
    Titles:
      – TitleFull: COMPARATIVE ANALYSIS OF FLUIDS USED IN ORGANIC RANKINE CYCLES.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Mihai, Cruceru
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          Name:
            NameFull: Bogdan, Diaconu
      – PersonEntity:
          Name:
            NameFull: Lucica, Anghelescu
    IsPartOfRelationships:
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          Dates:
            – D: 01
              M: 07
              Text: 2025
              Type: published
              Y: 2025
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              Value: 18424856
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              Value: 3
          Titles:
            – TitleFull: Annals of 'Constantin Brancusi' University of Targu-Jiu. Engineering Series / Analele Universităţii Constantin Brâncuşi din Târgu-Jiu. Seria Inginerie
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