<?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>S0379-39822016000200095</article-id>
<article-id pub-id-type="doi">10.18845/tm.v29i2.2694</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Potencial de fabricación de pellets de residuos forestales de Cupressus lusitanica y Tectona grandis en Costa Rica]]></article-title>
<article-title xml:lang="en"><![CDATA[Pellet manufacturing potential of forest residuals of Cupressus lusitanica and Tectona grandis in Costa Rica]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tenorio]]></surname>
<given-names><![CDATA[Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moya]]></surname>
<given-names><![CDATA[Roger]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valaert]]></surname>
<given-names><![CDATA[Jorre]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tomazello-Filho]]></surname>
<given-names><![CDATA[Mario]]></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 Forestal ]]></institution>
<addr-line><![CDATA[Cartago ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica Escuela de Ingeniería Forestal ]]></institution>
<addr-line><![CDATA[Cartago ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Agrep Forestal S.A  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,ESALQ/Universidade de São Paulo Departamento de Ciências Florestais ]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<volume>29</volume>
<numero>2</numero>
<fpage>95</fpage>
<lpage>109</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0379-39822016000200095&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0379-39822016000200095&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0379-39822016000200095&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En los procesos de transformación y aserrío de la madera se generan residuos que pueden usarse como fuentes de materia prima para la producción de pellets. El objetivo de este trabajo fue evaluar la eficiencia, la calidad por imágenes de rayos X y las propiedades energéticas, físicas y mecánicas de pellets fabricados con residuos obtenidos del procesamiento de trozas de Cupressus lusitanica y Tectona grandis. Los resultados indicaron un porcentaje de eficiencia bajo para ambas especies forestales, con 25% para C. lusitanica y 20% para T. grandis. En la evaluación de calidad, los pellets de C. lusitanica se caracterizaron por poseer zonas de mayor claridad y pocas fisuras de corto tamaño en su superficie, mientras que en los de T. grandis se presenta un mayor número de zonas de mayor claridad, además de mostrar fisuras de mayor profundidad y largo. En relación con las propiedades evaluadas, se encontró que los pellets de T. grandis tienen una menor densidad aparente, menor PC, menor resistencia a la compresión y menor uniformidad en la densidad de su superficie y un porcentaje de cenizas, CH y durabilidad mecánica mayor, al compararlos con los de C. lusitanica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The process of transformation and sawmilling of sawlog generates residuals that can be used as sources of raw material for the production of pellets. The aim of this study was to evaluate the efficiency, pellet quality for x-ray photographic and the energetic, physical and mechanical properties of pellets fabricated from residuals obtained from processing sawlogs of Cupressus lusitanica and Tectona grandis. The results showed a percentage of low efficiency for both species, 25% for C. lusitanica and 20% for T. grandis. In the quality evaluation, pellets were found that pellet fabricated with C. lusitanica pellets is characterized by having high density areas (about 1300 kg m-3) and few cracks of short size on the surface. But the pellets of T. grandis residues present an irregular density (high and low density in the pellet) and present deeper and longer cracks. Regarding the properties evaluated, it was found that the pellets of T. grandis were characterized by having a lower apparent density, lower net calorific power, lower resistance to compression and lower uniformity in the density of its surface and a greater percentage of ash, moisture content and mechanical durability, if they are compared with pellets of C. lusitanica.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Eficiencia]]></kwd>
<kwd lng="es"><![CDATA[calidad]]></kwd>
<kwd lng="es"><![CDATA[rayos X]]></kwd>
<kwd lng="es"><![CDATA[propiedades energéticas]]></kwd>
<kwd lng="es"><![CDATA[físicas y mecánicas]]></kwd>
<kwd lng="en"><![CDATA[Efficiency]]></kwd>
<kwd lng="en"><![CDATA[quality]]></kwd>
<kwd lng="en"><![CDATA[X-rays]]></kwd>
<kwd lng="en"><![CDATA[energetic]]></kwd>
<kwd lng="en"><![CDATA[physical and mechanical properties]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aarseth]]></surname>
<given-names><![CDATA[K.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Prestlokken]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mechanical Properties of Feed Pellets: Weibull Analysis]]></article-title>
<source><![CDATA[Biosystems Engineering]]></source>
<year>2003</year>
<volume>84</volume>
<page-range>349-61</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aragón-Garita]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Moya]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bond]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Valaert]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Tomazello-Fihlo]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Production and quality analysis of pellets manufactured from five potential energy crops in the Northern Region of Costa Rica]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2016</year>
<volume>87</volume>
<page-range>84-95</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<collab>ASTM (American Society for Testing and Materials, US)</collab>
<article-title xml:lang=""><![CDATA[D 5865-04 Standard test method for gross calorific value of coal and coke.]]></article-title>
<source><![CDATA[Annual Book of ASTM Standards]]></source>
<year>2003</year>
<month>a</month>
<volume>04</volume>
<numero>10</numero>
<issue>10</issue>
<publisher-loc><![CDATA[Philadelphia, US ]]></publisher-loc>
<publisher-name><![CDATA[ASTM]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<collab>ASTM (American Society for Testing and Materials)</collab>
<article-title xml:lang=""><![CDATA[D-1102-84 Standard test method for ash in wood]]></article-title>
<source><![CDATA[Annual Book of ASTM Standards]]></source>
<year>2003</year>
<month>b</month>
<volume>11</volume>
<numero>06</numero>
<issue>06</issue>
<publisher-loc><![CDATA[Philadelphia, US ]]></publisher-loc>
<publisher-name><![CDATA[ASTM]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bergstrom]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Israelsson]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ohman]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Dahlqvist]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gref]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Boman]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Wasterlund]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of raw material particle size distribution on the characteristics of Scots pine sawdust fuel pellets]]></article-title>
<source><![CDATA[Fuel Processing Technology]]></source>
<year>2008</year>
<volume>89</volume>
<page-range>1324-9</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="">
<collab>BSI. DD CEN/TS 15210-1:2005</collab>
<source><![CDATA[Solid biofuels. &#8220;Methods for the determination of mechanical durability of pellets and briquettes&#8221;]]></source>
<year>2005</year>
<publisher-loc><![CDATA[Milan, Ital ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carone]]></surname>
<given-names><![CDATA[M.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Pantaleo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pellerano]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of process parameters and biomass characteristics on the durability of pellets from the pruning residues of Olea europaea L]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2011</year>
<volume>35</volume>
<page-range>402-10</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Colley]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Fasina]]></surname>
<given-names><![CDATA[O.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Bransby]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[Y.Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Moisture effect on the physical characteristics of switchgrass pellets]]></article-title>
<source><![CDATA[American Society of Agricultural and Biological Engineers]]></source>
<year>2006</year>
<volume>49</volume>
<page-range>1845-51</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cornelius]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Apedaile]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Mesén]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Provenance and Family Variation in Height and Diameter Growth of Cupressus lusitanica Mill. at 28 Months in Costa Rica.]]></article-title>
<source><![CDATA[Silvae Genetica]]></source>
<year>1996</year>
<volume>45</volume>
<page-range>2-3</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Demirbas]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationships between heating value and lignin, moisture, ash and extractive contents of biomass fuels]]></article-title>
<source><![CDATA[Energy Exploration and Exploitation]]></source>
<year>2009</year>
<volume>20</volume>
<page-range>105-11</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<collab>Deutsches Institut Fur Normung (DIN)</collab>
<source><![CDATA[Testing of solid fuels. Compressed untreated wood. Requirements and testing]]></source>
<year>1996</year>
<publisher-name><![CDATA[German National Standard]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fasina]]></surname>
<given-names><![CDATA[O.O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical properties of peanut hull pellets]]></article-title>
<source><![CDATA[Bioresource Technology]]></source>
<year>2008</year>
<volume>99</volume>
<page-range>1259-66</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Filbakk]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Skjevrak]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Høibø]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Dibdiakova]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Jirjis]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The influence of storage and drying methods for Scots pine raw material on mechanical pellet properties and production parameters]]></article-title>
<source><![CDATA[Fuel Processing Technology]]></source>
<year>2011</year>
<volume>92</volume>
<page-range>871-8</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gilbert]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Ryu]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Sharifi]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Swithenbank]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of process parameters on pelletisation of herbaceous crops]]></article-title>
<source><![CDATA[Fuel]]></source>
<year>2009</year>
<volume>88</volume>
<page-range>1491-7</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaliyan]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Morey]]></surname>
<given-names><![CDATA[R.V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Factors affecting strength and durability of densified biomass products]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2009</year>
<volume>33</volume>
<page-range>337-59</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[J.I.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Patel]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[R.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An assessment of Indian fuelwood with regards to properties and environmental impact.]]></article-title>
<source><![CDATA[Asian Journal of Energy Environment]]></source>
<year>2009</year>
<volume>10</volume>
<page-range>99-107</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Larsson]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Thyrel]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Geladi]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Lestander]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[High quality biofuel pellet production from pre-compacted low density raw materials]]></article-title>
<source><![CDATA[Bioresource Technology]]></source>
<year>2008</year>
<volume>99</volume>
<page-range>7176-82</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[Y.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Ryu]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[W.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Park]]></surname>
<given-names><![CDATA[Y.K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of wood pellet combustion in a domestic stove]]></article-title>
<source><![CDATA[Journal of Material Cycles and Waste Management]]></source>
<year>2011</year>
<volume>13</volume>
<page-range>165-72</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[S.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahn]]></surname>
<given-names><![CDATA[B.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Choi]]></surname>
<given-names><![CDATA[D.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Han]]></surname>
<given-names><![CDATA[G.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Jeong]]></surname>
<given-names><![CDATA[H.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahn]]></surname>
<given-names><![CDATA[S.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of densification variables on the durability of wood pellets fabricated with Larix kaempferi C. and Liriodendron tulipifera L. sawdust.]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2013</year>
<volume>48</volume>
<page-range>1-9</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lehtikangas]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quality properties of pelletised sawdust, logging residues and bark]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2001</year>
<volume>20</volume>
<page-range>351-360.</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mande]]></surname>
<given-names><![CDATA[S.P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Thermo chemical conversion of biomass]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Kishore]]></surname>
<given-names><![CDATA[V. V. N]]></given-names>
</name>
</person-group>
<source><![CDATA[Renewable energy engineering and technology]]></source>
<year>2009</year>
<page-range>705-28</page-range><publisher-loc><![CDATA[New Delhi ]]></publisher-loc>
<publisher-name><![CDATA[The Energy and Resources Institute]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mani]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Sokhansanj]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Bi]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Turhollow]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Economics of producing fuel pellets from biomass]]></article-title>
<source><![CDATA[Applied Engineering in Agriculture]]></source>
<year>2006</year>
<month>a</month>
<volume>22</volume>
<page-range>421-6</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mani]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Tabil]]></surname>
<given-names><![CDATA[L.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Sokhansanj]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of compressive force, particle size and moisture content on mechanical properties of biomass pellets from grasses]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2006</year>
<month>b</month>
<volume>30</volume>
<page-range>648-54</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moya]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical and mechanical properties of eight species from fast-growth plantation in Costa Rica]]></article-title>
<source><![CDATA[Journal of Tropical Forest Science]]></source>
<year>2010</year>
<volume>22</volume>
<page-range>317-28</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moya]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Tenorio]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fuel wood characteristics and its relation with extractives and chemical properties of ten fast-growth species in Costa Rica]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2013</year>
<volume>, 56</volume>
<page-range>14-21</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moya]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bond]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Quesada]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review of heartwood properties of Tectona grandis trees from fast-growth plantations.]]></article-title>
<source><![CDATA[Wood Science and Technology]]></source>
<year>2014</year>
<volume>48</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>411-33</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murillo]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Obando]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Badilla]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Perspectivas en las zonas altas de Costa Rica]]></article-title>
<source><![CDATA[Biocenosis]]></source>
<year>2001</year>
<volume>1</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>66-71</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nielsen]]></surname>
<given-names><![CDATA[N.P.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Gardner]]></surname>
<given-names><![CDATA[D.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Poulsen]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Felby]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Importance of temperature, moisture content, and species for the conversion process of wood into fuel pellets]]></article-title>
<source><![CDATA[Wood and Fiber Science]]></source>
<year>2009</year>
<month>a</month>
<volume>41</volume>
<page-range>414-25</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nielsen]]></surname>
<given-names><![CDATA[N.P.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Holm]]></surname>
<given-names><![CDATA[J.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Felby]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of fiber orientation on compression and frictional properties of sawdust particles in fuel pellet production]]></article-title>
<source><![CDATA[Energy Fuel s]]></source>
<year>2009</year>
<month>b</month>
<volume>23</volume>
<page-range>3211-6</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Razuan]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Finney]]></surname>
<given-names><![CDATA[K.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Sharifi]]></surname>
<given-names><![CDATA[V.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Swithenbank]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pelletised fuel production from palm kernel cake]]></article-title>
<source><![CDATA[FuelProcess Tech]]></source>
<year>2011</year>
<volume>92</volume>
<page-range>609-15</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rhén]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gref]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Sjostrom]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Wasterlund]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of raw material moisture content, densification pressure and temperature on some properties of Norway spruce pellets]]></article-title>
<source><![CDATA[Fuel Processing Technology]]></source>
<year>2005</year>
<volume>87</volume>
<page-range>11-6</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Serrano]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Monedero]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Lapuerta]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Portero]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of moisture content, particle size and pine addition on quality parameters of barley straw pellets]]></article-title>
<source><![CDATA[Fuel Processing Technology]]></source>
<year>2011</year>
<volume>92</volume>
<page-range>699-706</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Soto]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Núñez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fabricación de pellets de carbonilla, usando aserrín de Pinus radiata (D. Don) como material aglomerante]]></article-title>
<source><![CDATA[Maderas. Ciencia y Tecnología]]></source>
<year>2008</year>
<volume>10</volume>
<page-range>129-37</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stahl]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Berghel]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Energy efficient pilot-scale production of wood fuel pellets made from a raw material mix including sawdust and rapessed cake]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2011</year>
<volume>35</volume>
<page-range>4842-54</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stelte]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Clemons]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Holm]]></surname>
<given-names><![CDATA[J.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Sanadi]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahrenfeldt]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Shang]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Henriksen]]></surname>
<given-names><![CDATA[U.B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pelletizing properties of torrefied spruce]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2011</year>
<month>a</month>
<volume>35</volume>
<page-range>4690-8</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stelte]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Holm]]></surname>
<given-names><![CDATA[J.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Sanadi]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Barsberg]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Annenfeldt]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Henriksen]]></surname>
<given-names><![CDATA[U.B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A study of bonding and failure mechanism in fuel pellets from different biomass resources]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2011</year>
<month>b</month>
<volume>35</volume>
<page-range>910-8</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stelte]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Holm]]></surname>
<given-names><![CDATA[J.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Sanadi]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Barsberg]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahrenfeldt]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Henriksen]]></surname>
<given-names><![CDATA[U.B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fuel pellets from biomass: The importance of the pelletizing pressure and its dependency on the processing conditions.]]></article-title>
<source><![CDATA[Fuel]]></source>
<year>2011</year>
<month>c</month>
<volume>90</volume>
<page-range>32853290</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tabil]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Sokhansanj]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Process conditions affecting the physical quality of alfalfa pellets]]></article-title>
<source><![CDATA[Applied Engineering in Agriculture]]></source>
<year>1996</year>
<volume>12</volume>
<page-range>345-50</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Telmo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Lousada]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heating values of wood pellets from different species.]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2011</year>
<volume>35</volume>
<page-range>2634-9</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Temmerman]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rabier]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Jensen]]></surname>
<given-names><![CDATA[P.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Hartmann]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Bohm]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparative study of durability test methods for pellets and briquettes]]></article-title>
<source><![CDATA[Biomass and Bioenergy]]></source>
<year>2006</year>
<volume>30</volume>
<page-range>964-72</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tenorio]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Moya]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Thermogravimetric characteristics, its relation with extractives and chemical properties and combustion characteristics of ten fast-growth species in Costa Rica]]></article-title>
<source><![CDATA[Thermochimica Acta]]></source>
<year>2013</year>
<numero>563</numero>
<issue>563</issue>
<page-range>12-21</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Theerarattananoona]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Xua]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Wilsonb]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ballardc]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Mckinneyb]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Staggenborgc]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Vadlanib]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Peid]]></surname>
<given-names><![CDATA[Z.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical properties of pellets made from sorghum stalk, corn stover, wheat straw, and big bluestem.]]></article-title>
<source><![CDATA[Industrial Crops and Products]]></source>
<year>2011</year>
<volume>33</volume>
<page-range>325-32</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[White]]></surname>
<given-names><![CDATA[R.H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of lignin content and extractives on the higher heating value of wood]]></article-title>
<source><![CDATA[Wood and Fiber Science]]></source>
<year>1987</year>
<volume>19</volume>
<page-range>446-52</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
