<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0379-3982</journal-id>
<journal-title><![CDATA[Revista Tecnología en Marcha]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnología en Marcha]]></abbrev-journal-title>
<issn>0379-3982</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0379-39822016000100038</article-id>
<article-id pub-id-type="doi">10.18845/tm.v29i1.2537</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Desempeño de turbinas eólicas Magnus de eje horizontal en función de sus variables geométricas y cinemáticas]]></article-title>
<article-title xml:lang="en"><![CDATA[Horizontal axis Magnus wind turbine performance according to their geometric and kinematic variables]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Richmond-Navarro]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica  Escuela de Ingeniería Electromecánica]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<volume>29</volume>
<numero>1</numero>
<fpage>38</fpage>
<lpage>50</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0379-39822016000100038&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0379-39822016000100038&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0379-39822016000100038&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este estudio presenta el análisis de una turbina eólica de eje horizontal que utiliza cilindros en rotación, en lugar de aspas con perfiles alares. El principio de funcionamiento de este generador eólico es el efecto Magnus, que sucede cuando las aspas cilíndricas empiezan a rotar y se da una interacción entre la corriente de viento incidente y el aire que es arrastrado por las paredes de los cilindros en movimiento. De esta forma, se obtiene la sustentación que pone en movimiento la turbina. El objetivo de la investigación es caracterizar este tipo de turbina mediante modelos numéricos y matemáticos, que permitan determinar el comportamiento de la curva de potencia en función del viento ante variaciones de los parámetros de funcionamiento de la turbina tipo Magnus de eje horizontal, a saber, la geometría del cilindro y las velocidades de rotación tanto de la turbina como del cilindro. Para estudiar el desempeño de la turbina, se propone un método numérico no iterativo, que es implementado en un código que permite predecir el rendimiento de turbinas de eje horizontal, el cual es validado con mediciones experimentales de turbinas convencionales. Posteriormente, se adecúa el código para aplicarlo a turbinas Magnus y con ello se obtiene el comportamiento de la curva de potencia ante variaciones en la geometría y cantidad de cilindros, así como las velocidades angulares de la turbina y del aspa cilíndrica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This study covers the analysis of a horizontal axis wind turbine that uses rotating cylinders instead of blades. The working principle of this wind generator is the Magnus effect, which happens when the cylinders start rotating, giving rise to an interaction between the incident wind and the air dragged by the walls of the moving cylinders. This generates lift which puts the turbine in motion. The goal of this investigation was to characterize this type of turbine by means of numerical and mathematics methods that permit determination of the power vs wind speed curve&#8217;s behaviour as a function of working parameters of Magnus horizontal axis wind turbines. In order to study turbines performance, a non-iterative method is proposed and implemented in code. This approach allows the prediction of the output power, which is validated by experimental measurements of conventional turbines. The method was adapted to Magnus turbines. It was used to obtain the power curve behavior given geometry variations including changes in the number of rods, as well as turbine and cylindrical blade&#8217;s angular velocities.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Turbina eólica Magnus]]></kwd>
<kwd lng="es"><![CDATA[efecto Magnus]]></kwd>
<kwd lng="es"><![CDATA[desempeño]]></kwd>
<kwd lng="es"><![CDATA[método numérico.]]></kwd>
<kwd lng="en"><![CDATA[Magnus wind turbine]]></kwd>
<kwd lng="en"><![CDATA[Magnus effect]]></kwd>
<kwd lng="en"><![CDATA[performance]]></kwd>
<kwd lng="en"><![CDATA[numerical method.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burton]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Sharpe]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Jenkins]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Bossanyi]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[Wind energy handbook]]></source>
<year>2011</year>
<publisher-name><![CDATA[John Wiley &amp; Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bychkov]]></surname>
<given-names><![CDATA[N.M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Magnus wind turbine. 3. Calculated characteristics of the windwheel]]></article-title>
<source><![CDATA[Thermophysics and Aeromechanics]]></source>
<year>2008</year>
<volume>15</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>321-31</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bychkov]]></surname>
<given-names><![CDATA[N.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Dovgal]]></surname>
<given-names><![CDATA[A.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Kozlov]]></surname>
<given-names><![CDATA[V.V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Magnus wind turbines as an alternative to the blade ones]]></article-title>
<source><![CDATA[Journal of Physics: Conference Series]]></source>
<year>2007</year>
<volume>75</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>012004</page-range><publisher-name><![CDATA[IOP Publishing]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ceyhan]]></surname>
<given-names><![CDATA[O.Z.L.E.M]]></given-names>
</name>
</person-group>
<source><![CDATA[Aerodynamic design and optimization of horizontal axis wind turbines by using BEM theory and genetic algorithm]]></source>
<year>2008</year>
<publisher-loc><![CDATA[Ankara ]]></publisher-loc>
<publisher-name><![CDATA[METU]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fei]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Mai]]></surname>
<given-names><![CDATA[J.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[W.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A wind-flutter energy converter for powering wireless sensors]]></article-title>
<source><![CDATA[Sensors and Actuators A: Physical]]></source>
<year>2012</year>
<volume>173</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>163-71</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gon&#711;o]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Rusek]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hrabc&#711;ík]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Wind turbine cylinders with spiral fins]]></source>
<year>2009</year>
<conf-name><![CDATA[ 8thEEEIC International Conference on Environment and Electrical Engineering]]></conf-name>
<conf-loc>Karpacz, Poland </conf-loc>
<page-range>10-3</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Islam]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ting]]></surname>
<given-names><![CDATA[D.S.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Fartaj]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aerodynamic models for Darrieus-type straight-bladed vertical axis wind turbines]]></article-title>
<source><![CDATA[Renewable and Sustainable Energy Reviews]]></source>
<year>2008</year>
<volume>12</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1087-109</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ito]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kawashima]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Nishizawa]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Ushiyama]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Komatinovic.]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[A study on savonius type magnus wind turbine. Europe premier wind energy event]]></source>
<year>2007</year>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Luo]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analytical solution on Magnus wind turbine power performance based on the blade element momentum theory]]></article-title>
<source><![CDATA[Journal of Renewable and Sustainable Energy]]></source>
<year>2011</year>
<volume>3</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>033104</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Manwell]]></surname>
<given-names><![CDATA[J.F.]]></given-names>
</name>
<name>
<surname><![CDATA[McGowan]]></surname>
<given-names><![CDATA[J.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rogers]]></surname>
<given-names><![CDATA[A.L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Wind energy explained: theory, design and application]]></source>
<year>2009</year>
<publisher-name><![CDATA[John Wiley &amp; Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Massaguer]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Massaguer]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Pujol]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Comamala]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Velayos]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Blade shape influence on aerodynamic efficiency of a Magnus wind turbine using particle image velocimetry]]></article-title>
<source><![CDATA[Renewable Energy and Power Quality Journal]]></source>
<year>2014</year>
<volume>12</volume>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moriarty]]></surname>
<given-names><![CDATA[P.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hansen]]></surname>
<given-names><![CDATA[A.C.]]></given-names>
</name>
</person-group>
<source><![CDATA[AeroDyn theory manual]]></source>
<year>2005</year>
<publisher-loc><![CDATA[Golden, Colorado, USA ]]></publisher-loc>
<publisher-name><![CDATA[National Renewable Energy Laboratory]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perkovic´]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Ban]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Kranjc&#711;evic´]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Duic´]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Harvesting high altitude wind energy for power production: The concept based on Magnus&#8217; effect]]></article-title>
<source><![CDATA[Applied Energy]]></source>
<year>2013</year>
<volume>101</volume>
<page-range>151-60</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sedaghat]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Magnus type wind turbines: Prospectus and challenges in design and modelling]]></article-title>
<source><![CDATA[Renewable Energy]]></source>
<year>2014</year>
<volume>62</volume>
<page-range>619-28</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhuang]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Cao]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A three-dimensional numerical study of the Magnus wind turbine with different blade shapes]]></article-title>
<source><![CDATA[Journal of Renewable and Sustainable Energy]]></source>
<year>2012</year>
<volume>4</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>063139</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
