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Design and Exper.mentation of a 1 MW Hor.zontal Axis Wind Tur.ine

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Jour.al of Power.and Ener.y Engineer.ng 2014年第1期2卷 9-16页

作者： Miguel Toledo Velázquez Mar.elino Vega Del Car.en Juan Abugaber.Fr.ncis Luis A. Mor.no 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 wor. was car.ied out the aer.dynamics design of a 1 MW hor.zontal axis wind tur.ine by using blade element momentum theor. (BEM). The gener.ted design was scaled and built for.testing pur.oses in the dischar.e of an axial flow fan of 80 cm in diameter. Str.p theor. was used for.the aer.dynamic per.or.ance evaluation. In the numer.cal calculations was conducted a compar.tive analysis of the per.or.ance cur.es adding incr.asingly cor.ection factor. to the or.ginal equation of ideal flow to r.duce the er.or.r.gar.ing r.al oper.ting values got by the exper.mental tests. Cor.ection factor. intr.duced in the ideal flow equation wer. the tip loss factor.and dr.g coefficient. BEM r.sults showed good appr.ximation using exper.mental data for.the tip speed r.tio less than design. The best appr.ximation of the power.coefficient calculation was for.tip speed r.tio less than 6. BEM method is a tool for.pr.ctical calculation and can be used for.the design and evaluation of wind tur.ines when the flow r.te is not too tur.ulent and r.dial velocity components ar. negligible.

关键词： Wind Tur.ine Design BET BEM Tip Speed r.tio Tip Lost Factor HAWT

Ener.y and Exer.y Analysis of Moist Air.for.Application in Power.Plants

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Ener.y and Power.Engineer.ng 2011年第3期3卷 376-381页

作者： Mar.ín Salazar.Per.yr. Miguel Toledo-Velázquez G. tolentino eslava r.úl Lugo-Leyte Celer.no r.séndiz r.sas 不详

In this study an ener.y and exer.y analysis is made of moist air. it is used the psychometr.cs char.s. A Visual Basic pr.gr.m is used to gener.te psychometr.cs char.s. These char.s ar. used to analyze the air.ther.odynamic behavior. consider.ng the envir.nmental var.ations, pr.ssur., temper.tur. and r.lative humidity. Also, the available ener.y in the cooling pr.cesses at constant enthalpy, humidification at constant temper.tur. and heating with constant r.lative humidity is analyzed. For.example, we obtained that the enthalpy and exer.y in a ther.odynamic state, with conditions, Patm = 1.013 bar. Tatm = 25oC and Φatm=50%, ar. h = 50.56 kJ/kga and ε =11.5 kJ/kga;and for.Patm= 0.77 bar.to the same conditions of Tatm and Φatm, the enthalpy and exer.y incr.ases in a 14% and 20%, r.spectively.

关键词： Ener.y Analysis Exer.y Analysis Moist Air Power Plants

Application of the Weibull Distr.bution to Estimate the Volume of Water.Pumping by a Windmill

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Jour.al of Power.and Ener.y Engineer.ng 2016年第9期4卷 36-51页

作者： M. Toledo Velázquez J. Her.á ndez r.dr.iacute guez M. Vega Del Car.en F. E. Flor.s Mur.ieta G. tolentino eslava Labor.tor.o de Ingenier.iacute a Té r.ica e Hidr.aacute ulica Aplicada (LABINTHAP) IPN-SEPI-ESIME Zacatenco Ciudad de M&eacute xico M&eacute xico Divisió 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 incr.ase in use of alter.ative ener.y sour.es to supply par. of the ener.y demand of the wor.d, and consider.ng that Mexico has enough wind r.sour.es to pr.duce all the electr.city r.quir.d by the countr., in this wor., it is car.ied out the development of a system of wind r.sour.e assessment to deter.ine the volume of water.that a windmill pumping system can pr.vide in a specific ar.a. To this end, it has developed a computer.pr.gr.m for.wind r.sour.e assessment by measur.ments of wind speed, dir.ction, temper.tur., bar.metr.c pr.ssur. and r.lative humidity. Measur.ng equipments wer. mounted in a wind measur.ment tower.of 10 m high, within the pr.mises of the Univer.ity of Quintana r.o which is located along the coast. Until this day, ther. ar. r.cor.s over.a per.od of five months of the var.ables of wind speed, wind dir.ction, temper.tur., r.lative humidity and atmospher.c pr.ssur.. These var.ables wer. used for.statistical calculations using the Weibull distr.butions. To give a better.use of the calculated data, they wer. applied to the evaluation of a Pumping System.

关键词： Pumping Systems Weibull Distr.bution Wind Ener.y Windmill

Evaluation of the Gas Tur.ine Inlet Temper.tur. with r.lation to the Excess Air

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Ener.y and Power.Engineer.ng 2011年第4期3卷 517-524页

作者： F. r.eda Mar.ínez A. r.eda Mar.ínez M. Toledo Velazquez P. Quinto Diez G. tolentino eslava J. Abugaber.Fr.ncis 不详

This paper.shows the effect of excess air.on combustion gas temper.tur. at tur.ine inlet, and how it deter.ines power.and ther.al efficiency of a gas tur.ine at differ.nt pr.ssur. r.tios and excess air. In such a way an analytic Equation that allows calculating the tur.ine inlet temper.tur. as a function of excess air. pr.ssur. r.tio and r.lative humidity is given. Humidity Impact on excess air.calculation is also analyzed and pr.sented. Likewise it is demonstr.ted that dr. air.calculations deter.ine a higher.level for.calculations that can be per.or.ed on wet air.

关键词： Gas Tur.ine Excess Air Tur.ine Inlet Temper.tur. Dr. Air Wet Air