Design and analysis of a vertical axis wind turbine
In the past three decades, increasing attention has being put into wind turbines as a clean and green renewable energy alternative to fossil fuels. There are two main types of wind turbines, the Horizontal Axis Wind Turbine (HAWT) and Vertical Axis Wind Turbine (VAWT). Due to the advantages that the...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2013
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| Online Access: | http://hdl.handle.net/10356/53968 |
| _version_ | 1811690054780715008 |
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| author | Chue, Wai Yong. |
| author2 | Jorg Uwe Schluter |
| author_facet | Jorg Uwe Schluter Chue, Wai Yong. |
| author_sort | Chue, Wai Yong. |
| collection | NTU |
| description | In the past three decades, increasing attention has being put into wind turbines as a clean and green renewable energy alternative to fossil fuels. There are two main types of wind turbines, the Horizontal Axis Wind Turbine (HAWT) and Vertical Axis Wind Turbine (VAWT). Due to the advantages that the VAWT has over the HAWT in urban environments, this project serves to investigate on an experimental Delta Blade VAWT.
With a pair of leading-edge vortices on the top surface, the delta wing is able to continue generating lift at high angles of attack where conventional wing would have already experienced stall. In addition, the reverse delta wing shows similar trends. Hence, these subsonic characteristics of the delta wing were found applicable to a VAWT, incorporated into the Delta Blade VAWT.
In this project, a Delta Blade VAWT was designed and built for wind tunnel testing. Initially, the Delta Blade VAWT with standard delta blades obtained a maximum power coefficient of 0.0138. Several modifications were done to the Delta Blade VAWT to improve its performance. Eventually, with the optimal turbine blades, cropped delta blades with 45o TE deflection, the maximum power coefficient was able to improve to 0.0496 (217.93% increment). Wind tunnel testing for 360o aerodynamic data and water tunnel flow visualization were also done to justify these improvements in performance.
As a whole, the Delta Blade VAWT with optimal turbine blades is considered to be successful. It has great self-starting and self-sustaining capabilities even at low wind speeds of 4 m/s, due to its operating TSR range of 0.2 to 0.4. Hence, the Delta Blade VAWT can be said to suit a small-scale urban rooftop application. |
| first_indexed | 2024-10-01T05:57:54Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/53968 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:57:54Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/539682023-03-04T19:03:51Z Design and analysis of a vertical axis wind turbine Chue, Wai Yong. Jorg Uwe Schluter School of Mechanical and Aerospace Engineering DRNTU::Engineering In the past three decades, increasing attention has being put into wind turbines as a clean and green renewable energy alternative to fossil fuels. There are two main types of wind turbines, the Horizontal Axis Wind Turbine (HAWT) and Vertical Axis Wind Turbine (VAWT). Due to the advantages that the VAWT has over the HAWT in urban environments, this project serves to investigate on an experimental Delta Blade VAWT. With a pair of leading-edge vortices on the top surface, the delta wing is able to continue generating lift at high angles of attack where conventional wing would have already experienced stall. In addition, the reverse delta wing shows similar trends. Hence, these subsonic characteristics of the delta wing were found applicable to a VAWT, incorporated into the Delta Blade VAWT. In this project, a Delta Blade VAWT was designed and built for wind tunnel testing. Initially, the Delta Blade VAWT with standard delta blades obtained a maximum power coefficient of 0.0138. Several modifications were done to the Delta Blade VAWT to improve its performance. Eventually, with the optimal turbine blades, cropped delta blades with 45o TE deflection, the maximum power coefficient was able to improve to 0.0496 (217.93% increment). Wind tunnel testing for 360o aerodynamic data and water tunnel flow visualization were also done to justify these improvements in performance. As a whole, the Delta Blade VAWT with optimal turbine blades is considered to be successful. It has great self-starting and self-sustaining capabilities even at low wind speeds of 4 m/s, due to its operating TSR range of 0.2 to 0.4. Hence, the Delta Blade VAWT can be said to suit a small-scale urban rooftop application. Bachelor of Engineering (Aerospace Engineering) 2013-06-10T08:24:57Z 2013-06-10T08:24:57Z 2013 2013 Final Year Project (FYP) http://hdl.handle.net/10356/53968 en Nanyang Technological University 116 p. application/pdf |
| spellingShingle | DRNTU::Engineering Chue, Wai Yong. Design and analysis of a vertical axis wind turbine |
| title | Design and analysis of a vertical axis wind turbine |
| title_full | Design and analysis of a vertical axis wind turbine |
| title_fullStr | Design and analysis of a vertical axis wind turbine |
| title_full_unstemmed | Design and analysis of a vertical axis wind turbine |
| title_short | Design and analysis of a vertical axis wind turbine |
| title_sort | design and analysis of a vertical axis wind turbine |
| topic | DRNTU::Engineering |
| url | http://hdl.handle.net/10356/53968 |
| work_keys_str_mv | AT chuewaiyong designandanalysisofaverticalaxiswindturbine |