Characteristics of a highly efficient propeller type small wind turbine with a diffuser

Matsushima, Toshio; Takagi, S.; Muroyama, S.

doi:10.1016/j.renene.2005.07.008

Cited by 110 publications

(57 citation statements)

References 2 publications

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“…Definite aspects of wind turbine diffusers were researched in 2006 in order to find an optimal design [12]. One of these characteristics is the angle at which the diffuser opens up from the slender area to the outlet.…”

Section: Characteristics Of a Greatly Efficient Propeller Type Smamentioning

confidence: 99%

“…Matsushima et al [12] presented a diffuser with a brim attached to its outlet. The brim increases the separation at the back of the diffuser and reduces the pressure near the outlet of the diffuser, at the back of the brim (this effect is the same as pressure drag, as earlier defined in section).…”

Section: Characteristics Of a Greatly Efficient Propeller Type Smamentioning

confidence: 99%

“…This reduces the static pressure in this part of the diffuser. For this study a CFD simulation of a diffuser with an inlet diameter of 1m, a total length of 2m to 4m, a brim height of 100mmto 500mm and the angle of the diffuser between 0 0 and 12 0 was arranged by Matsushima et al(2005). The simulation was done without a wind turbine.…”

Section: Characteristics Of a Greatly Efficient Propeller Type Smamentioning

confidence: 99%

See 2 more Smart Citations

Potential of Shrouded Micro Wind Turbine

Sontakke¹,

Deshmukh²,

Patil³

2017

IRA-JTE

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Section: Characteristics Of a Greatly Efficient Propeller Type Smamentioning

confidence: 99%

Section: Characteristics Of a Greatly Efficient Propeller Type Smamentioning

confidence: 99%

Section: Characteristics Of a Greatly Efficient Propeller Type Smamentioning

confidence: 99%

See 1 more Smart Citation

Potential of Shrouded Micro Wind Turbine

Sontakke¹,

Deshmukh²,

Patil³

2017

IRA-JTE

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“…Most of testing done to establish small wind turbine rated power (maximum power output) and power curves (function of power output with increasing wind) is done in wind tunnels, focusing on the electrical components of the wind turbines and not realistically assessing turbine performance in the field, owing to associated costs and inadequate policy. As environmental factors such as temperature, radiation and wind variability affect turbine performance, field testing is essential yet studies assessing the performance of small wind turbines in the field have often focused on the turbine's effect on the local environment or turbulence patterns produced by secondary rotor effects [4][5][6][7][8][9]. Since there are currently no formal standardized testing regulations for their calibration and power output in the North American wind industry [10], it is difficult to access wind turbine data, which is often classed as "commercially sensitive" and thus studies continually rely on more simplistic formulations of power output to assess the changing wind regime caused by global warming [10][11][12][13].…”

Section: Narr Datasetmentioning

confidence: 99%

Feasibility of Small Wind Turbines in Ontario: Integrating Power Curves with Wind Trends

2016

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Micro-scale/small wind turbines, unlike larger utility-scale turbines, produce electricity at a rate of 300 W to 10 kW at their rated wind speed and are typically below 30 m in hub-height. These wind turbines have much more flexibility in their costs, maintenance and siting, owing to their size, and can provided wind energy in areas much less suited for direct supply to the grid system. In the future under climate change, the energy landscape will likely shift from the present centralized electricity generation and delivery system to a more distributed and locally-generated electricity and delivery system. In the new system configuration, the role of relatively small sustainable electricity generators like small wind turbines will likely become more prominent. However, the small wind industry has been substantially slow to progress in Ontario, Canada, and there is much debate over its viability in a growing energy dependent economy. This study seeks to demonstrate the performance of a small wind turbine, and speculate on its potential power output and trend over Ontario historically over the last 33 years using the North American Regional Reanalysis (NARR) data. We assessed the efficiency of a Bergey Excel 1 kW wind turbine at the pre-established Kortright Centre for Conservation test site, located north of Toronto. Using a novel approach, the Bergey optimized power curve was incorporated with reanalysis data to establish power output across Ontario at three-hour resolution. Small turbine-based wind power around the Great Lakes and eastern James Bay increased during winter and fall, contributing up to 10% of the annual electricity demand in some regions in Ontario. We purport that increases in power output are driven by long-term reductions in sea and lake ice concentrations affecting atmospheric stability in surrounding regions.

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“…around the diffuser mitigates the effects of obstruction and blockage to the free stream [39,41,44]. Velocity-inlet and pressure outlet boundary conditions were specified at the entrance and exit of the fluid domain respectively.…”

Section: Solution Strategymentioning

confidence: 99%

Small-scale wind energy portable turbine (SWEPT)

Kishore

Coudron

Priya

2013

Journal of Wind Engineering and Industrial Aerodynamics

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ABSTRACTguidance, support and encouragement. He has been a great mentor and I have learned a lot from him, both in academic research and in personal life. He didn't only provide me the necessary infrastructure and resources to complete this project, but also gave me enough freedom and opportunities to test and implement my own ideas. He always encouraged me to think 'out of box' and allowed me to work on several other projects apart from the subject of this thesis. Prof. Priya has his own style; his dedication towards the work, his courage and conviction to take new challenges, his optimism, and the most importantly, his attachment with the students are few of the many qualities that has always inspired me and will always motivate me in future to move ahead.I would also like to extend my heartfelt gratitude to Prof. Walter O'Brien and Prof.Danesh Tafti for mentoring me in many academic courses and serving on my MS committee.

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Characteristics of a highly efficient propeller type small wind turbine with a diffuser

Cited by 110 publications

References 2 publications

Potential of Shrouded Micro Wind Turbine

Potential of Shrouded Micro Wind Turbine

Feasibility of Small Wind Turbines in Ontario: Integrating Power Curves with Wind Trends

Small-scale wind energy portable turbine (SWEPT)

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