Experimental investigation into the influence of heat source power on the performance of a scroll expander in an organic Rankine cycle system using HFE-7100 fluid.
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| Title: | Experimental investigation into the influence of heat source power on the performance of a scroll expander in an organic Rankine cycle system using HFE-7100 fluid. |
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| Authors: | Kaczmarczyk, Tomasz Zygmunt1 tkaczmarczyk@imp.gda.pl |
| Source: | Archives of Thermodynamics. 2026, Vol. 47 Issue 1, p125-136. 12p. |
| Subjects: | Electric power, Working fluids, Flow velocity, Rankine cycle, Electric generators, Power (Mechanics) |
| Abstract: | This work presents the results of an experimental study on a 1 kW scroll expander in an organic Rankine cycle (ORC) system. The low-boiling, non-flammable hydrofluoroether HFE-7100, was used as the working fluid. The research was conducted at heat source power levels ranging from 10 kWt to 18 kWt. The flow rate of the working medium was in the range of 30 g/s to 60 g/s. The generator of the expansion unit, on the other hand, was loaded with electrical receivers, with a load ranging from 200 We to 2000 We. The study shows that, for the same working fluid flow rate and expander rotational speed, an increase in the thermal power of the heat source resulted in higher voltage at the generator terminals and increased electrical output power of the ORC system. It was found that, regardless of the HFE-7100 flow rate, the inclination angles of the electrical power and voltage curves with respect to the expander’s rotational speed axis increased as the thermal power of the heat source increased. Thus, for each level of a thermal power, there is an optimum generator load at which the electrical output power of the system is maximised. The research conducted shows that the maximum electrical output of 635 We was obtained for a heat source power of 16 kWtand a fluid flow rate of 60 g/s. In addition, it was found that for the tested ranges of heat source power and HFE-7100 flow rate, the optimum load for the expander generator was between 3.5 Ω and 4.8 Ω. [ABSTRACT FROM AUTHOR] |
| Copyright of Archives of Thermodynamics is the property of Szewalski Institute of Fluid-Flow Machinery 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 |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 194061259 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Experimental investigation into the influence of heat source power on the performance of a scroll expander in an organic Rankine cycle system using HFE-7100 fluid. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kaczmarczyk%2C+Tomasz+Zygmunt%22">Kaczmarczyk, Tomasz Zygmunt</searchLink><relatesTo>1</relatesTo><i> tkaczmarczyk@imp.gda.pl</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Archives+of+Thermodynamics%22">Archives of Thermodynamics</searchLink>. 2026, Vol. 47 Issue 1, p125-136. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Electric+power%22">Electric power</searchLink><br /><searchLink fieldCode="DE" term="%22Working+fluids%22">Working fluids</searchLink><br /><searchLink fieldCode="DE" term="%22Flow+velocity%22">Flow velocity</searchLink><br /><searchLink fieldCode="DE" term="%22Rankine+cycle%22">Rankine cycle</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+generators%22">Electric generators</searchLink><br /><searchLink fieldCode="DE" term="%22Power+%28Mechanics%29%22">Power (Mechanics)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This work presents the results of an experimental study on a 1 kW scroll expander in an organic Rankine cycle (ORC) system. The low-boiling, non-flammable hydrofluoroether HFE-7100, was used as the working fluid. The research was conducted at heat source power levels ranging from 10 kWt to 18 kWt. The flow rate of the working medium was in the range of 30 g/s to 60 g/s. The generator of the expansion unit, on the other hand, was loaded with electrical receivers, with a load ranging from 200 We to 2000 We. The study shows that, for the same working fluid flow rate and expander rotational speed, an increase in the thermal power of the heat source resulted in higher voltage at the generator terminals and increased electrical output power of the ORC system. It was found that, regardless of the HFE-7100 flow rate, the inclination angles of the electrical power and voltage curves with respect to the expander’s rotational speed axis increased as the thermal power of the heat source increased. Thus, for each level of a thermal power, there is an optimum generator load at which the electrical output power of the system is maximised. The research conducted shows that the maximum electrical output of 635 We was obtained for a heat source power of 16 kWtand a fluid flow rate of 60 g/s. In addition, it was found that for the tested ranges of heat source power and HFE-7100 flow rate, the optimum load for the expander generator was between 3.5 Ω and 4.8 Ω. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Archives of Thermodynamics is the property of Szewalski Institute of Fluid-Flow Machinery 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: BibEntity: Identifiers: – Type: doi Value: 10.24425/ather.2026.158664 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 125 Subjects: – SubjectFull: Electric power Type: general – SubjectFull: Working fluids Type: general – SubjectFull: Flow velocity Type: general – SubjectFull: Rankine cycle Type: general – SubjectFull: Electric generators Type: general – SubjectFull: Power (Mechanics) Type: general Titles: – TitleFull: Experimental investigation into the influence of heat source power on the performance of a scroll expander in an organic Rankine cycle system using HFE-7100 fluid. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kaczmarczyk, Tomasz Zygmunt IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 12310956 Numbering: – Type: volume Value: 47 – Type: issue Value: 1 Titles: – TitleFull: Archives of Thermodynamics Type: main |
| ResultId | 1 |
