Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid
An experimental investigation of the organic Rankine cycle (ORC) is carried out using butane, pentane, cyclopentane or hexamethyldisiloxane as a working fluid. Thermal and exergy efficiencies are used to assess system performance over a wide range of heat source temperature, turbine inlet pressure a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Energy Conversion and Management: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590174522000678 |
| _version_ | 1828286261720252416 |
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| author | Wameedh Khider Abbas Abbas Elmar Baumhögger Jadran Vrabec |
| author_facet | Wameedh Khider Abbas Abbas Elmar Baumhögger Jadran Vrabec |
| author_sort | Wameedh Khider Abbas Abbas |
| collection | DOAJ |
| description | An experimental investigation of the organic Rankine cycle (ORC) is carried out using butane, pentane, cyclopentane or hexamethyldisiloxane as a working fluid. Thermal and exergy efficiencies are used to assess system performance over a wide range of heat source temperature, turbine inlet pressure and superheating degree. The results indicate that both of these efficiencies increase with rising heat source temperature and turbine inlet pressure. Under the present experimental conditions, without using an optimized turbine, the highest thermal efficiency and exergy efficiency are 8.0% and 25.2%, respectively. The results show that hexamethyldisiloxane is a better working fluid than the alkanes under all studied experimental conditions. Moreover, it is found that a small superheating degree may be beneficial. Exergy loss analysis indicates that most of the loss occurs in the evaporator and that a working fluid with a high critical temperature is advantageous for ORC systems driven by a heating cycle with a heat transfer fluid. |
| first_indexed | 2024-04-13T09:29:24Z |
| format | Article |
| id | doaj.art-c4a331aa5bb04a72b11e53369c18a093 |
| institution | Directory Open Access Journal |
| issn | 2590-1745 |
| language | English |
| last_indexed | 2024-04-13T09:29:24Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Conversion and Management: X |
| spelling | doaj.art-c4a331aa5bb04a72b11e53369c18a0932022-12-22T02:52:20ZengElsevierEnergy Conversion and Management: X2590-17452022-08-0115100244Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluidWameedh Khider Abbas Abbas0Elmar Baumhögger1Jadran Vrabec2Thermodynamics and Energy Technology, University of Paderborn, Warburger Straße 100, 33098 Paderborn, GermanyThermodynamics and Energy Technology, University of Paderborn, Warburger Straße 100, 33098 Paderborn, GermanyThermodynamics and Process Engineering, Technical University of Berlin, Ernst-Reuter-Platz 1, 10587 Berlin, Germany; Corresponding author.An experimental investigation of the organic Rankine cycle (ORC) is carried out using butane, pentane, cyclopentane or hexamethyldisiloxane as a working fluid. Thermal and exergy efficiencies are used to assess system performance over a wide range of heat source temperature, turbine inlet pressure and superheating degree. The results indicate that both of these efficiencies increase with rising heat source temperature and turbine inlet pressure. Under the present experimental conditions, without using an optimized turbine, the highest thermal efficiency and exergy efficiency are 8.0% and 25.2%, respectively. The results show that hexamethyldisiloxane is a better working fluid than the alkanes under all studied experimental conditions. Moreover, it is found that a small superheating degree may be beneficial. Exergy loss analysis indicates that most of the loss occurs in the evaporator and that a working fluid with a high critical temperature is advantageous for ORC systems driven by a heating cycle with a heat transfer fluid.http://www.sciencedirect.com/science/article/pii/S2590174522000678Thermal efficiencyExergy efficiencyHeat source temperatureWorking fluidAlkaneSiloxane |
| spellingShingle | Wameedh Khider Abbas Abbas Elmar Baumhögger Jadran Vrabec Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid Energy Conversion and Management: X Thermal efficiency Exergy efficiency Heat source temperature Working fluid Alkane Siloxane |
| title | Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid |
| title_full | Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid |
| title_fullStr | Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid |
| title_full_unstemmed | Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid |
| title_short | Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid |
| title_sort | experimental investigation of organic rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid |
| topic | Thermal efficiency Exergy efficiency Heat source temperature Working fluid Alkane Siloxane |
| url | http://www.sciencedirect.com/science/article/pii/S2590174522000678 |
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