Investigation on cooling the hot tube surfaces of vortex tube at different pressure and fraction with comprehensive thermal performance analysis
The Raque Hilsch Vortex Tube (RHVT) is a heat pump system that uses the phenomenon of compressed vortex airflow in a tube for cooling and heating. This study aims to determine the effect of pressure and fraction on RHVT by cooling the surface of the hot tube naturally and forcefully. Tube type testi...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-12-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X20304810 |
| _version_ | 1818388152551735296 |
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| author | Alfan Sarifudin Nugroho Agung Pambudi Danar Susilo Wijayanto Indah Widiastuti |
| author_facet | Alfan Sarifudin Nugroho Agung Pambudi Danar Susilo Wijayanto Indah Widiastuti |
| author_sort | Alfan Sarifudin |
| collection | DOAJ |
| description | The Raque Hilsch Vortex Tube (RHVT) is a heat pump system that uses the phenomenon of compressed vortex airflow in a tube for cooling and heating. This study aims to determine the effect of pressure and fraction on RHVT by cooling the surface of the hot tube naturally and forcefully. Tube type testing was conducted with a pressure variation of 0.5–1.5 bar and a fraction of 30%–70%. The results of the analysis show that forced cooling on the surface of the hot tube decreases the heating performance (Th, ΔTh, Q˙h, ηish, and COPh) and improves the cooling performance (Tc, ΔTc, Q˙c, ηisc and COPref). The higher pressure increases the performance of Th ΔTh, Q˙h, Tc ΔTc, and Q˙c, and decrease the performance of ηish, COPh, ηisc, and COPref. The fraction 40% is the most optimal parameter for the performance of Tc ΔTc, Q˙c. The 60% fraction works best for Th, ΔTh, Q˙h, ηish, and COPh, while the fraction 70% works best for Q˙c and COPref. The most optimal performance values include Th (41 °C), ΔTh (14 °C), Q˙h (2.369kJ/s), ηish(24.21%), COPh (0.092), Tc (13.450 °C), ΔTc (13.550 °C), Q˙c (3.280kJ/s), ηisc (20.84%), and COPref (0.123). |
| first_indexed | 2024-12-14T04:21:18Z |
| format | Article |
| id | doaj.art-0e343e15acb94738a12e3b1866edddfb |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-12-14T04:21:18Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-0e343e15acb94738a12e3b1866edddfb2022-12-21T23:17:20ZengElsevierCase Studies in Thermal Engineering2214-157X2020-12-0122100739Investigation on cooling the hot tube surfaces of vortex tube at different pressure and fraction with comprehensive thermal performance analysisAlfan Sarifudin0Nugroho Agung Pambudi1Danar Susilo Wijayanto2Indah Widiastuti3Corresponding author.; Department of Mechanical Engineering Education, Universitas Sebelas Maret, Sutami No.36 A Road, Pucangsawit, Jebres, Surakarta City, Central Java Province, 57126, IndonesiaCorresponding author.; Department of Mechanical Engineering Education, Universitas Sebelas Maret, Sutami No.36 A Road, Pucangsawit, Jebres, Surakarta City, Central Java Province, 57126, IndonesiaDepartment of Mechanical Engineering Education, Universitas Sebelas Maret, Sutami No.36 A Road, Pucangsawit, Jebres, Surakarta City, Central Java Province, 57126, IndonesiaDepartment of Mechanical Engineering Education, Universitas Sebelas Maret, Sutami No.36 A Road, Pucangsawit, Jebres, Surakarta City, Central Java Province, 57126, IndonesiaThe Raque Hilsch Vortex Tube (RHVT) is a heat pump system that uses the phenomenon of compressed vortex airflow in a tube for cooling and heating. This study aims to determine the effect of pressure and fraction on RHVT by cooling the surface of the hot tube naturally and forcefully. Tube type testing was conducted with a pressure variation of 0.5–1.5 bar and a fraction of 30%–70%. The results of the analysis show that forced cooling on the surface of the hot tube decreases the heating performance (Th, ΔTh, Q˙h, ηish, and COPh) and improves the cooling performance (Tc, ΔTc, Q˙c, ηisc and COPref). The higher pressure increases the performance of Th ΔTh, Q˙h, Tc ΔTc, and Q˙c, and decrease the performance of ηish, COPh, ηisc, and COPref. The fraction 40% is the most optimal parameter for the performance of Tc ΔTc, Q˙c. The 60% fraction works best for Th, ΔTh, Q˙h, ηish, and COPh, while the fraction 70% works best for Q˙c and COPref. The most optimal performance values include Th (41 °C), ΔTh (14 °C), Q˙h (2.369kJ/s), ηish(24.21%), COPh (0.092), Tc (13.450 °C), ΔTc (13.550 °C), Q˙c (3.280kJ/s), ηisc (20.84%), and COPref (0.123).http://www.sciencedirect.com/science/article/pii/S2214157X20304810Coefficient of the performance (COP)ExperimentHeat flowIsentropic efficiencyMathematical analysis |
| spellingShingle | Alfan Sarifudin Nugroho Agung Pambudi Danar Susilo Wijayanto Indah Widiastuti Investigation on cooling the hot tube surfaces of vortex tube at different pressure and fraction with comprehensive thermal performance analysis Case Studies in Thermal Engineering Coefficient of the performance (COP) Experiment Heat flow Isentropic efficiency Mathematical analysis |
| title | Investigation on cooling the hot tube surfaces of vortex tube at different pressure and fraction with comprehensive thermal performance analysis |
| title_full | Investigation on cooling the hot tube surfaces of vortex tube at different pressure and fraction with comprehensive thermal performance analysis |
| title_fullStr | Investigation on cooling the hot tube surfaces of vortex tube at different pressure and fraction with comprehensive thermal performance analysis |
| title_full_unstemmed | Investigation on cooling the hot tube surfaces of vortex tube at different pressure and fraction with comprehensive thermal performance analysis |
| title_short | Investigation on cooling the hot tube surfaces of vortex tube at different pressure and fraction with comprehensive thermal performance analysis |
| title_sort | investigation on cooling the hot tube surfaces of vortex tube at different pressure and fraction with comprehensive thermal performance analysis |
| topic | Coefficient of the performance (COP) Experiment Heat flow Isentropic efficiency Mathematical analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X20304810 |
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