Modeling and Aerodynamic Analysis of Small Scale, Mixed Airfoil Horizontal Axis Wind Turbine Blade

Gupta, Rajen K.; Warudkar, Vilas; Purohit, Rajesh; Rajpurohit, Saurabh Singh

doi:10.1016/j.matpr.2017.05.049

Cited by 13 publications

(7 citation statements)

References 4 publications

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“…The modification of thin aerofoils with shorter chord lengths increased the performance of turbines with reduced weight. 70 The conditions are highly uncertain and not favorable for installing wind turbines in all regions due to the requirement of huge areas. Moreover, the urban residential conditions pose various hurdles to the turbine establishment.…”

Section: Issues Impacting Small-scale Turbine Performance In Urban Areasmentioning

confidence: 99%

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Recent developments and issues of small-scale wind turbines in urban residential buildings- A review

Aravindhan¹,

Natarajan

Ponnuvel

et al. 2022

Energy & Environment

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To address the future growth in energy demands, complete renewable power generation from environmental assets demands unique methodologies from every investigator. Wind energy harvesting in residential areas is one such approach. But the urban landscape and the physical challenges restrict the erection of small-scale wind turbines. Further, a significant degree of uncertainty leads to a lack of awareness of how dispersion in urban environments impacts turbine performance. This research looks into the potential productivity of wind turbine installations in urban areas, considering turbulence. These unique ambient conditions prevailing in a dynamic environment compared to flat terrains have made the harnessing of wind energy very difficult. Many researchers are still trying to find an effective methodology in these constrained circumstances. Since the characteristics of small-scale wind turbine models are undetermined, large-scale turbines fared well compared to small-scale wind turbine models. The feasibility and success of small and medium turbines in community homes were investigated in this study. The origins of the very uncertain nature of atmospheric boundary layer limitations are discussed in this work and subsequent successful developments by different researchers.

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Section: Issues Impacting Small-scale Turbine Performance In Urban Areasmentioning

confidence: 99%

“…Table 1 summarizes the performance through many small wind turbines with a horizontal-axis wind layout. [3][4][5][6][7][8][9][10][11][12] and vertical axis wind turbines in Table 2. [13][14][15][16] Rooftop turbines, small-scale wind turbines, testing methods, as well as how to improve performance will be discussed in subsequent parts.…”

Section: Introductionmentioning

confidence: 99%

Recent developments and issues of small-scale wind turbines in urban residential buildings- A review

Aravindhan¹,

Natarajan

Ponnuvel

et al. 2022

Energy & Environment

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“…The work presented here focuses on HAWT-type SWTs. The majority of studies of HAWTs are focused on the design and optimization of rotors and blades of turbines [5][6][7][8][9][10][11][12][13]. Some studies [14,15] consider the air profile, blade allowable stress, starting time, and output power.…”

Section: Introductionmentioning

confidence: 99%

Fast Power Coefficient vs. Tip–Speed Ratio Curves for Small Wind Turbines with Single-Variable Measurements following a Single Test Run

Corbalán,

Chiang

2024

Energies

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Small wind turbines (SWTs) face tremendous challenges in being developed into a more reliable and widespread energy solution, with a number of efficiency, reliability, and cost issues that are yet to be resolved. As part of the development stages of an SWT, testing the resulting efficiency and determining appropriate working ranges are of high importance. In this paper, a methodology is presented for testing SWTs to obtain characteristic performance curves such as Cp (power coefficient) vs. TSR (tip–speed ratio), and torque vs. ω, in a simpler and faster yet accurate manner as an alternative energy solution when a wind tunnel is not available. The performance curves are obtained with the SWT mounted on a platform moving along a runway, requiring only a few minutes of data acquisition. Furthermore, it is only required to measure a single variable, i.e., the generator output voltage. A suitable physics-based mathematical model for the system allows for deriving the desired performance curves from this set of minimal data. The methodology was demonstrated by testing a prototype SWT developed by the authors. The tested prototype had a permanent magnet synchronous generator, but the methodology can be applied to any type of generator with a suitable mathematical model. Given its level of simplicity, accuracy, low cost, and ease of implementation, the proposed testing method has advantages that are helpful in the development process of SWTs, especially if access to a proper wind tunnel is prevented for any reason. To validate the methodology, Cp vs. TSR curves were obtained for an SWT prototype tested under different test conditions, arriving always at the same curve as would be expected. In this case, the test prototype reached a maximum power coefficient (Cp) of 0.35 for wind velocities from 20 to 50 km/h for a TSR of 5.5.

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“…As a general practice, realizing a final geometry is an iterative process involving several substeps. The design of a rotor blade is governed by the principles of aerodynamics that can be comprehended by the application of Blade Element Momentum theory (BEMT) [14]. The current research work employs the BEM theory for developing effective blade geometry through a sequential process without appraising the blade performance.…”

Section: Introductionmentioning

confidence: 99%

Geometrical Design of a Rotor Blade for a Small Scale Horizontal Axis Wind Turbine

Supreeth*¹,

Arokkiaswamy²,

Raikar³

et al. 2019

IJRTE

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In the present study, Blade Element Momentum theory (BEMT) has been implemented to heuristically design a rotor blade for a 2kW Fixed Pitch Fixed Speed (FPFS) Small Scale Horizontal Axis Wind Turbine (SSHAWT). Critical geometrical properties viz. Sectional Chord ci and Twist distribution θTi for the idealized, optimized and linearized blades are analytically determined for various operating conditions. Results obtained from BEM theory demonstrate that the average sectional chord ci and twist distribution θTi of the idealized blade are 20.42% and 14.08% more in comparison with optimized blade. Additionally, the employment of linearization technique further reduced the sectional chord ci and twist distribution θTi of the idealized blade by 17.9% and 14% respectively, thus achieving a viable blade bounded by the limits of economic and manufacturing constraints. Finally, the study also reveals that the iteratively reducing blade geometry has an influential effect on the solidity of the blade that in turn affects the performance of the wind turbine.

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Modeling and Aerodynamic Analysis of Small Scale, Mixed Airfoil Horizontal Axis Wind Turbine Blade

Cited by 13 publications

References 4 publications

Recent developments and issues of small-scale wind turbines in urban residential buildings- A review

Recent developments and issues of small-scale wind turbines in urban residential buildings- A review

Fast Power Coefficient vs. Tip–Speed Ratio Curves for Small Wind Turbines with Single-Variable Measurements following a Single Test Run

Geometrical Design of a Rotor Blade for a Small Scale Horizontal Axis Wind Turbine

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