New Design of the Reversible Jet Fan
Abstract
This paper presents two designs of the axial reversible jet fan, with the special focus on the impeller. The intention was to develop a reversible axial jet fan which operates in the same way in both rotating directions while generating thrust as high as possible. The jet fan model with the outer diameter 499.2 +/- 0.1 mm and ten adjustable blades is the same, while it is in-built in two different casings. The first construction is a cylindrical casing, while the second one is profiled as a nozzle. Thrust, volume flow rate, consumed power and ambient conditions were measured after the international standard ISO 13350. Results for both constructions are presented for three impeller blade angles: 28 degrees, 31 degrees and 35 degrees, and rotation speed in the interval n = 400 to 2600 rpm. The smallest differences in thrust, depending on the fan rotation direction, as well as the highest thrust are achieved for the first design with the cylindrical casing and blade angle at the outer dia...meter of 35 degrees. Therefore, it was shown that fan casing significantly influences jet fan characteristics. In addition, the maximum thrust value and its independence of the flow direction is experimentally obtained for the angle of 39 degrees in the cylindrical casing.
Keywords:
axial fan / reversible / jet / design / thrust / energy characteristicsSource:
Processes, 2020, 8, 12Publisher:
- MDPI, Basel
Funding / projects:
- MESTD RS [401-00-00588/2018-09]
- Ministry of Water Resources in China and Renewable Energy and Rural Electrification Zhejiang International Science Center [401-00-00588/2018-09]
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200105 (University of Belgrade, Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200105)
- Application of Novel Measurement and Computational Techniques on Investigation of Air Flow in Ventilation Systems of Energy Extremely Efficient (“Passive”) Buildings (RS-MESTD-Technological Development (TD or TR)-35046)
DOI: 10.3390/pr8121671
ISSN: 2227-9717
WoS: 000602415600001
Scopus: 2-s2.0-85098225403
Collections
Institution/Community
Mašinski fakultetTY - JOUR AU - Benišek, Miroslav AU - Čantrak, Đorđe AU - Ilić, Dejan AU - Janković, Novica PY - 2020 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3340 AB - This paper presents two designs of the axial reversible jet fan, with the special focus on the impeller. The intention was to develop a reversible axial jet fan which operates in the same way in both rotating directions while generating thrust as high as possible. The jet fan model with the outer diameter 499.2 +/- 0.1 mm and ten adjustable blades is the same, while it is in-built in two different casings. The first construction is a cylindrical casing, while the second one is profiled as a nozzle. Thrust, volume flow rate, consumed power and ambient conditions were measured after the international standard ISO 13350. Results for both constructions are presented for three impeller blade angles: 28 degrees, 31 degrees and 35 degrees, and rotation speed in the interval n = 400 to 2600 rpm. The smallest differences in thrust, depending on the fan rotation direction, as well as the highest thrust are achieved for the first design with the cylindrical casing and blade angle at the outer diameter of 35 degrees. Therefore, it was shown that fan casing significantly influences jet fan characteristics. In addition, the maximum thrust value and its independence of the flow direction is experimentally obtained for the angle of 39 degrees in the cylindrical casing. PB - MDPI, Basel T2 - Processes T1 - New Design of the Reversible Jet Fan IS - 12 VL - 8 DO - 10.3390/pr8121671 ER -
@article{ author = "Benišek, Miroslav and Čantrak, Đorđe and Ilić, Dejan and Janković, Novica", year = "2020", abstract = "This paper presents two designs of the axial reversible jet fan, with the special focus on the impeller. The intention was to develop a reversible axial jet fan which operates in the same way in both rotating directions while generating thrust as high as possible. The jet fan model with the outer diameter 499.2 +/- 0.1 mm and ten adjustable blades is the same, while it is in-built in two different casings. The first construction is a cylindrical casing, while the second one is profiled as a nozzle. Thrust, volume flow rate, consumed power and ambient conditions were measured after the international standard ISO 13350. Results for both constructions are presented for three impeller blade angles: 28 degrees, 31 degrees and 35 degrees, and rotation speed in the interval n = 400 to 2600 rpm. The smallest differences in thrust, depending on the fan rotation direction, as well as the highest thrust are achieved for the first design with the cylindrical casing and blade angle at the outer diameter of 35 degrees. Therefore, it was shown that fan casing significantly influences jet fan characteristics. In addition, the maximum thrust value and its independence of the flow direction is experimentally obtained for the angle of 39 degrees in the cylindrical casing.", publisher = "MDPI, Basel", journal = "Processes", title = "New Design of the Reversible Jet Fan", number = "12", volume = "8", doi = "10.3390/pr8121671" }
Benišek, M., Čantrak, Đ., Ilić, D.,& Janković, N.. (2020). New Design of the Reversible Jet Fan. in Processes MDPI, Basel., 8(12). https://doi.org/10.3390/pr8121671
Benišek M, Čantrak Đ, Ilić D, Janković N. New Design of the Reversible Jet Fan. in Processes. 2020;8(12). doi:10.3390/pr8121671 .
Benišek, Miroslav, Čantrak, Đorđe, Ilić, Dejan, Janković, Novica, "New Design of the Reversible Jet Fan" in Processes, 8, no. 12 (2020), https://doi.org/10.3390/pr8121671 . .