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Design and experimentation of a 1 MW Horizontal Axis Wind Turbine

Journal of Power and energy engineering 2014年第1期2卷 9-16页

作者： Miguel Toledo Velázquez Marcelino Vega Del Carmen Juan Abugaber Francis Luis A. Moreno Pacheco Guilibaldo Tolentino eslava Instituto Politécnico Nacional Laboratorio de Ingeniería Térmica e Hidráulica Aplicada México D.F. México Instituto Politécnico Nacional Laboratorio de Ingeniería Térmica e Hidráulica Aplicada México D.F. México.

In this work was carried out the aerodynamics design of a 1 MW horizontal axis wind turbine by using blade element momentum theory (BeM). The generated design was scaled and built for testing purposes in the discharge of an axial flow fan of 80 cm in diameter. Strip theory was used for the aerodynamic performance evaluation. In the numerical calculations was conducted a comparative analysis of the performance curves adding increasingly correction factors to the original equation of ideal flow to reduce the error regarding real operating values got by the experimental tests. Correction factors introduced in the ideal flow equation were the tip loss factor and drag coefficient. BeM results showed good approximation using experimental data for the tip speed ratio less than design. The best approximation of the power coefficient calculation was for tip speed ratio less than 6. BeM method is a tool for practical calculation and can be used for the design and evaluation of wind turbines when the flow rate is not too turbulent and radial velocity components are negligible.

关键词： Wind Turbine Design BeT BeM Tip Speed Ratio Tip Lost Factor HAWT

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Application of the Weibull Distribution to estimate the Volume of Water Pumping by a Windmill

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Journal of Power and energy engineering 2016年第9期4卷 36-51页

作者： M. Toledo Velázquez J. Hern&aacute ndez Rodr&iacute guez M. Vega Del Carmen F. e. Flores Murrieta G. Tolentino eslava Laboratorio de Ingenier&iacute a T&eacute rmica e hidrá ulica Aplicada (LABINTHAP) IPN-SEPI-ESIME Zacatenco Ciudad de M&eacute xico M&eacute xico Divisi&oacute n de Ciencias e Ingenier&iacute a Laboratorio en Sistemas de Energ&iacute a Universidad de Quintana Roo Chetumal M&eacute xico

Given the steady increase in use of alternative energy sources to supply part of the energy demand of the world, and considering that Mexico has enough wind resources to produce all the electricity required by the country, in this work, it is carried out the development of a system of wind resource assessment to determine the volume of water that a windmill pumping system can provide in a specific area. To this end, it has developed a computer program for wind resource assessment by measurements of wind speed, direction, temperature, barometric pressure and relative humidity. Measuring equipments were mounted in a wind measurement tower of 10 m high, within the premises of the University of Quintana Roo which is located along the coast. Until this day, there are records over a period of five months of the variables of wind speed, wind direction, temperature, relative humidity and atmospheric pressure. These variables were used for statistical calculations using the Weibull distributions. To give a better use of the calculated data, they were applied to the evaluation of a Pumping System.

关键词： Pumping Systems Weibull Distribution Wind energy Windmill

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Analysis of the Behavior of a Turbomachine Driven by a Compressed Air System

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Journal of Power and energy engineering 2017年第5期5卷 1-13页

作者： Miguel Toledo-Velázquez Raúl Cruz-Vicencio Juan Abugaber-Francis Juan Carlos Anzelmetti-Zaragoza Instituto Politécnico Nacional Escuela Superior de Ingeniería Mecánica y Eléctrica Sección de Estudios de Posgrado e Investigación Laboratorio de Ingeniería Térmica e Hidráulica Aplicada (LABINTHAP) Unidad Profesional “Adolfo López Mateos” Ciudad de México México Universidad Veracruzana Escuela de Ingeniería Mecánica y Eléctrica Unidad Poza Rica-Tuxpan Veracruz México

Different experiments in high speed turbomachines require expensive and sophisticated infrastructure to implement their impulsion and reach high regimes. In developed countries, this can be achieved by using aeroderivative gas turbines or DC motors of about 400 HP. This paper presents an experimental system designed and built with the intention of performing behavior studies in test turbomachinery. The proposed installation uses compressed air as driving fluid, which allows the turbomachinery to reach high rotational speeds where very important phenomena occur. An analysis is carried out considering the rotational speed behavior of an internal combustion engine turbocharger of the Perkins series when it is driven by pressures ranging from 4.2 kg/cm2 to zero. Additionally, another experiment couples an automotive electrical generator with the turbine to observe the system operation when a load is applied. The behavior of the pressure is analyzed when it is in function of the time of air discharge that goes from a compressed air storage tank to the turbocharger for its impulsion. This is an experimental system that can be designed and constructed economically within the bounds of any public university.

关键词： Turbomachinery Compressed air Turbocharger Vorticity

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