Burnout Investigation of Small Diameter Tubes Immersed in Nanofluids
This paper deals with research into pool boiling critical heat flux (CHF) of water–Al<sub>2</sub>O<sub>3</sub>, water–TiO<sub>2</sub> and water–Cu nanofluids on horizontal stainless steel tubes. The experiments were conducted under atmospheric pressure. Nanopartic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/13/3888 |
| _version_ | 1797411542393683968 |
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| author | Janusz T. Cieśliński Katarzyna Ronewicz |
| author_facet | Janusz T. Cieśliński Katarzyna Ronewicz |
| author_sort | Janusz T. Cieśliński |
| collection | DOAJ |
| description | This paper deals with research into pool boiling critical heat flux (CHF) of water–Al<sub>2</sub>O<sub>3</sub>, water–TiO<sub>2</sub> and water–Cu nanofluids on horizontal stainless steel tubes. The experiments were conducted under atmospheric pressure. Nanoparticles were tested at concentrations of 0.001%, 0.01%, 0.1% and 1% by weight. Ultrasonic vibration was used in order to stabilize the dispersion of the nanoparticles. Although dispersants were not used to stabilize the suspension, the solutions tested showed satisfactory stability. Experimental measurements were performed with stainless steel tubes of three outside diameters: 1.6, 3 and 5 mm. Enhancement of CHF was observed to be independent of the concentration and material of the nanoparticles and tube diameter, with simultaneous heat transfer degradation. Built up during the boiling process, nanolayers improve substantially the heating surface wettability. A correlation is suggested for the CHF prediction during pool boiling of nanofluids. |
| first_indexed | 2024-03-09T04:46:36Z |
| format | Article |
| id | doaj.art-1fa9aa488f2b40f9a57d8bd9bc2338c8 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T04:46:36Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-1fa9aa488f2b40f9a57d8bd9bc2338c82023-12-03T13:14:15ZengMDPI AGEnergies1996-10732021-06-011413388810.3390/en14133888Burnout Investigation of Small Diameter Tubes Immersed in NanofluidsJanusz T. Cieśliński0Katarzyna Ronewicz1Faculty of Mechanical Engineering and Ship Technology, Institute of Energy, Gdansk University of Technology, Narutowicza 11/12, 80233 Gdańsk, PolandAIC S.A., Rdestowa 41, 81577 Gdynia, PolandThis paper deals with research into pool boiling critical heat flux (CHF) of water–Al<sub>2</sub>O<sub>3</sub>, water–TiO<sub>2</sub> and water–Cu nanofluids on horizontal stainless steel tubes. The experiments were conducted under atmospheric pressure. Nanoparticles were tested at concentrations of 0.001%, 0.01%, 0.1% and 1% by weight. Ultrasonic vibration was used in order to stabilize the dispersion of the nanoparticles. Although dispersants were not used to stabilize the suspension, the solutions tested showed satisfactory stability. Experimental measurements were performed with stainless steel tubes of three outside diameters: 1.6, 3 and 5 mm. Enhancement of CHF was observed to be independent of the concentration and material of the nanoparticles and tube diameter, with simultaneous heat transfer degradation. Built up during the boiling process, nanolayers improve substantially the heating surface wettability. A correlation is suggested for the CHF prediction during pool boiling of nanofluids.https://www.mdpi.com/1996-1073/14/13/3888pool boilingnanofluidburnouthorizontal tubescontact anglecorrelation equation |
| spellingShingle | Janusz T. Cieśliński Katarzyna Ronewicz Burnout Investigation of Small Diameter Tubes Immersed in Nanofluids Energies pool boiling nanofluid burnout horizontal tubes contact angle correlation equation |
| title | Burnout Investigation of Small Diameter Tubes Immersed in Nanofluids |
| title_full | Burnout Investigation of Small Diameter Tubes Immersed in Nanofluids |
| title_fullStr | Burnout Investigation of Small Diameter Tubes Immersed in Nanofluids |
| title_full_unstemmed | Burnout Investigation of Small Diameter Tubes Immersed in Nanofluids |
| title_short | Burnout Investigation of Small Diameter Tubes Immersed in Nanofluids |
| title_sort | burnout investigation of small diameter tubes immersed in nanofluids |
| topic | pool boiling nanofluid burnout horizontal tubes contact angle correlation equation |
| url | https://www.mdpi.com/1996-1073/14/13/3888 |
| work_keys_str_mv | AT janusztcieslinski burnoutinvestigationofsmalldiametertubesimmersedinnanofluids AT katarzynaronewicz burnoutinvestigationofsmalldiametertubesimmersedinnanofluids |