Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants
This paper investigates the nucleate boiling process of dimethyl ether and selected hydrocarbons. The main goal of this study is to measure the heat transfer coefficients of RE170, R600a, and R601, and to compare them with R134a. The experiments were carried out for heat fluxes up to 70 kW/m<sup&...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/1/160 |
| _version_ | 1818015485219831808 |
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| author | Bartosz Gil Beata Fijałkowska |
| author_facet | Bartosz Gil Beata Fijałkowska |
| author_sort | Bartosz Gil |
| collection | DOAJ |
| description | This paper investigates the nucleate boiling process of dimethyl ether and selected hydrocarbons. The main goal of this study is to measure the heat transfer coefficients of RE170, R600a, and R601, and to compare them with R134a. The experiments were carried out for heat fluxes up to 70 kW/m<sup>2</sup>. Experimental results have shown a typical trend that the heat transfer coefficient of flammable refrigerants increases as the heat flux increases. Among the tested fluids, the highest values of heat transfer coefficient were obtained for RE170. Available correlations describing this coefficient showed a deviation of up to 93%, as compared to the data obtained. The new correlation was developed by regression analysis taking into account dimensionless variables affecting the boiling process. |
| first_indexed | 2024-04-14T06:57:43Z |
| format | Article |
| id | doaj.art-032ef0ccd64d4cbdb5c6f426a193d9f2 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T06:57:43Z |
| publishDate | 2019-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-032ef0ccd64d4cbdb5c6f426a193d9f22022-12-22T02:06:50ZengMDPI AGEnergies1996-10732019-12-0113116010.3390/en13010160en13010160Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly RefrigerantsBartosz Gil0Beata Fijałkowska1Faculty of Mechanical and Power Engineering, Wrocław University of Science and Technology, Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, PolandFaculty of Mechanical and Power Engineering, Wrocław University of Science and Technology, Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, PolandThis paper investigates the nucleate boiling process of dimethyl ether and selected hydrocarbons. The main goal of this study is to measure the heat transfer coefficients of RE170, R600a, and R601, and to compare them with R134a. The experiments were carried out for heat fluxes up to 70 kW/m<sup>2</sup>. Experimental results have shown a typical trend that the heat transfer coefficient of flammable refrigerants increases as the heat flux increases. Among the tested fluids, the highest values of heat transfer coefficient were obtained for RE170. Available correlations describing this coefficient showed a deviation of up to 93%, as compared to the data obtained. The new correlation was developed by regression analysis taking into account dimensionless variables affecting the boiling process.https://www.mdpi.com/1996-1073/13/1/160pool boilinghydrocarbonsdimethyl etheralternative refrigerantslow global warming potential (gwp)re170 |
| spellingShingle | Bartosz Gil Beata Fijałkowska Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants Energies pool boiling hydrocarbons dimethyl ether alternative refrigerants low global warming potential (gwp) re170 |
| title | Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants |
| title_full | Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants |
| title_fullStr | Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants |
| title_full_unstemmed | Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants |
| title_short | Experimental Study of Nucleate Boiling of Flammable, Environmentally Friendly Refrigerants |
| title_sort | experimental study of nucleate boiling of flammable environmentally friendly refrigerants |
| topic | pool boiling hydrocarbons dimethyl ether alternative refrigerants low global warming potential (gwp) re170 |
| url | https://www.mdpi.com/1996-1073/13/1/160 |
| work_keys_str_mv | AT bartoszgil experimentalstudyofnucleateboilingofflammableenvironmentallyfriendlyrefrigerants AT beatafijałkowska experimentalstudyofnucleateboilingofflammableenvironmentallyfriendlyrefrigerants |