DOE-ANOVA to Optimize Hydrokinetic Turbines for Low Velocity Conditions

Rueda-Bayona, Juan Gabriel; Paez, Natalia; Eras, Juan José Cabello; Gutiérrez, Alexis Sagastume

doi:10.18280/mmep.090415

Cited by 4 publications

(5 citation statements)

References 40 publications

(45 reference statements)

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“…The analysis is strengthened using Factorial Design tools to determine the significance of the effect of blade angle. The factorial design used is a two-factor analysis [25,26]. The factors in this study are the angular velocity and the blade's angle.…”

Section: Resultsmentioning

confidence: 99%

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The Blade's Angle Affects Banki-Turbine Performance as an Alternative Design for Clean Energy Generation

Prabowoputra¹,

Purwanto²,

Sutini³

2023

MMEP

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Hydropower is a renewable energy source with a lot of potential in Southeast Asian countries, with a total energy potential of 152,257 MW in Southeast Asia. The development of a hydro-turbine design is required due to the enormous hydropower potential. The turbine's runner is critical for converting fluid internal energy into kinetic energy. A cross-flow turbine that has gained popularity recently is the banki-turbine. The research that has been done is three-dimensional modeling of the banki-turbine with the CFD method. This study aims to determine the effect of the blade's angle on turbine performance. This research's steps are design, mesh independence, validation, simulation, and analysis. Modeling research was conducted with variations of blade angles 10˚, 15˚, and 20˚. Schematic modeling using a steady state condition, the turbulent type Shear Stress transport (SST), and the tetrahedral mesh method. The modeling consists of a rotating zone and a stationary zone. The water inlet velocity is 3 m/s, and the outlet pressure equals the room pressure (1 atm). Simulation of bankiturbine operated in 50 RPM until 350 RPM of angular velocity. One of the analyzes used is Factorial Design. The best performance Cpmax is obtained from the variation of the blade's angle of 15˚ on 0.28.

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Section: Resultsmentioning

confidence: 99%

“…Factorial design is a type of analysis used in research to determine the effect of existing factors [24][25][26][27]. This research uses a factorial design analysis, with two variables considered: the rotational speed factor and the blade angle.…”

Section: Literature Reviewmentioning

confidence: 99%

The Blade's Angle Affects Banki-Turbine Performance as an Alternative Design for Clean Energy Generation

Prabowoputra¹,

Purwanto²,

Sutini³

2023

MMEP

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“…It not only assesses the main effects of each factor but also explores the interactions among them. This nuanced understanding is crucial for comprehensively unravelling the dynamics of the system and discerning the unique contributions of each variable [18][19][20].…”

Section: Methodsmentioning

confidence: 99%

“…(1) can be used to make predictions of the process and for optimization. Rueda-Bayona et al presented [19] the calculation of the variable to be predicted through the ANOVA standardized effects represented in the Eq. ( 2):…”

Section: Methodsmentioning

confidence: 99%

DOE-ANOVA Analysis to Estimate the Effect of Ambient Temperature, Pressure and Humidity on Surface Wind Speed

Vega-Zuñiga,

Rueda-Bayona,

Ospino-Castro

2024

MMEP

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The traditional assessment of wind resource considers the ambient factors like temperature, pressure and humidity as a secondary parameter, and focus on the statistically evaluation of wind magnitude and direction. Nevertheless, the evaluation requires a deeper analysis of the above ambient factors, because they are thermodynamically linked, and the energy flux among them will affect the wind dynamics. This research aims to analyse the interactions of temperature, pressure, and humidity variables with the wind speed with an inverse approach, it means that wind will be controlled by the ambient variables. We conducted a statistical analysis using data from a meteorological station located in the University of the Coast in Barranquilla, Colombia. The methodology is based on a Design of Experiments-Analysis of Variance (DOE-ANOVA) with a 3 2 factorial design. The estimated effects from the DOE-ANOVA results were utilized to generate standardized effect equations, for evaluating the response of wind speed during changes of the studied ambient variables (factors). The results evidenced that the applied methodology provided information about the non-linear interactions of the analysed variables, and the standardized effect equations were tested against a liner regression model with satisfactory results.

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“…Similarly, transient marine currents have a similar effect on marine energy production as transient wind gust does on wind energy because unexpected changes in current velocities (i.e., nonlinear and turbulent) over short-term periods affect the hydrodynamic field [12,13]. The design and optimization of hydrokinetic turbines [13,14] and wave power converters [7] should consider these transient changes in the local hydrodynamics generated during low sea states. The generation of transient current accelerations has been identified in internal solitary waves through ADCP (acoustic Doppler current profilers) measurements [15], where kinetic and viscous parameters have been analyzed [16].…”

Section: Introductionmentioning

confidence: 99%

Hydrokinetic Energy and Transient Accelerations of Marine Currents in Colombian Nearshore Waters

Rueda-Bayona,

Cabello Eras,

Caicedo-Laurido

et al. 2023

Water

Self Cite

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The transient acceleration of ocean currents, or internal waves, is hard to detect, because it does not have climate variability or regular manifestation in the sea. This fluctuation affects not only short-term oceanographic processes but also the hydrokinetic generation of power and the structural health of ocean technologies. Identifying and understanding the mechanisms that generate internal waves require long-term data on the kinetic and viscous–turbulent parameters of the water column measured over long intervals. In this sense, this study analyzed current profiles in nearshore waters (8.9 m depths) measured over six months in the Colombian Caribbean Sea and found internal waves due to the manifestation of transient acceleration propagating in two of the three layers of the water column. The analyzed time series of currents and turbulent kinetic profiles evidenced that transient waves occurred during changes in the surface winds. The applied methodology in this research allowed, for the first time in the study area, the detection of transient accelerations (±0.25 m/s2) that modified the hydrokinetic energy of the water column over short-term periods (6–24 h).

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DOE-ANOVA to Optimize Hydrokinetic Turbines for Low Velocity Conditions

Cited by 4 publications

References 40 publications

The Blade's Angle Affects Banki-Turbine Performance as an Alternative Design for Clean Energy Generation

The Blade's Angle Affects Banki-Turbine Performance as an Alternative Design for Clean Energy Generation

DOE-ANOVA Analysis to Estimate the Effect of Ambient Temperature, Pressure and Humidity on Surface Wind Speed

Hydrokinetic Energy and Transient Accelerations of Marine Currents in Colombian Nearshore Waters

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