Ingeniería Civil y Mecánica

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Subject: search.filters.subject.EUCALIPTO

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    Análisis de las propiedades mecánicas de la madera de eucalipto (Eucalyptus), provenientes de la provincia de Tungurahua y su factibilidad como material estructural de acuerdo a la Norma Ecuatoriana de la Construcción 2015 (NEC 2015)
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2021-09) Sánchez Dahua, José Luis; Navarro Peñaherrera, Carlos Patricio
    The main objective of this work is to provide information on the mechanical properties of eucalyptus (bending and tension parallel to the fiber) from the province of Tungurahua and to present the values obtained for stresses and modulus of elasticity, which will be the basis for future designs of structural and non-structural wood elements. First, a bibliographic research on the properties of wood and relevant information on eucalyptus and its uses was carried out. In addition, an observation study was conducted in the sectors where strategic points of extraction and processing of eucalyptus wood were found. The cantons where samples were obtained were Baños, Ambato, Quero, Pelileo, Pillaro, Cevallos and Patate. Laboratory tests were carried out following their respective standards (ASTM D 143-94), which helped us to determine the maximum stresses and the modulus of elasticity both in axial bending and in tension parallel to the fiber of each sample from the cantons mentioned. In carrying out this project, specific data was broken down, which we have of structural wood from the categories set out in the tables of the Ecuadorian Construction Standard (NEC 2015 chapter 8), where we only have reference values but not specific, these helped to have a new database focused on eucalyptus wood, differentiating it from other known structural wood.
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    Análisis del proceso de secado de aserrín de madera de eucalipto con lámparas infrarrojas para reducir el grado de humedad
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2021-04) Sailema Sisalema, Welington Paúl; Cabrera Anda, Santiago Paúl
    In this project, prior to carrying out the drying process, the necessary fundamentals for compacting the sawdust and drying it were investigated. Identifying the variables such as: the initial humidity, the final humidity, the heat necessary to dry the sawdust, the time and the efficient power of the incandescent lamps. For the study, two types of specimens of different configuration were manufactured, a flat plate and a cylindrical one. For the compaction of the biomass, the homogenization with binder was carried out, in this case white glue to obtain an adequate compaction, when obtaining the specimens it was verified that they all have the same weight 1.88 gr for the flat plate specimen and 1.30 gr For the cylindrical specimen, the initial humidity was 51.60 percent and 30 percent respectively, after drying, it was possible to remove the existing moisture in the specimens, obtaining weights of 0.91 gr for the two configurations, with times of 18 minutes for the flat plate specimen and 24 minutes for the cylindrical specimen. The heat fluxes necessary to dry the specimens were 3529.195 Joule for the flat plate specimen and 2023.399 Joule for the cylindrical specimen and the required power was 3,268Watt and 1,405Watt respectively. Finally, the temperature distribution analysis was carried out by means of a CFD analysis, which shows that after 9 of the prototype of the dryer is in operation, the desired temperature of 65 degrees Celsius is obtained.