SCIÉNDO INGENIUM
https://revistas.unitru.edu.pe/index.php/PGM
<p>La revista<strong> Sciéndo Ingenium</strong> es el órgano oficial de publicación científica de la Escuela de Postgrado de la Universidad Nacional de Trujillo, de <strong>periodicidad trimestral</strong>. Atendiendo a las directrices del CONCYTEC Perú para indizar revistas científicas, desde marzo del 2019 sólo se recibirán y publicarán manuscritos del área de <strong>Ingeniería y Tecnología</strong>, dejando de esta forma el enfoque multidisciplinario. </p> <p><strong>ISSN</strong>: 3084-7788 (En línea) <strong>DOI</strong>: 10.17268/rev.cyt</p> <p><strong>Título abreviado: </strong>Scién. Inge.</p>Universidad Nacional de Trujilloes-ESSCIÉNDO INGENIUM<p>Los autores/as que publiquen en esta revista aceptan las siguientes condiciones:</p><ol><li>Los autores/as conservan los derechos de autor y ceden a la revista el derecho de la primera publicación, con el trabajo registrado con la <a href="http://creativecommons.org/licenses/by/3.0/" target="_new">licencia de atribución de Creative Commons</a>, que permite a terceros utilizar lo publicado siempre que mencionen la autoría del trabajo y a la primera publicación en esta revista.<br /><br /></li><li>Los autores/as pueden realizar otros acuerdos contractuales independientes y adicionales para la distribución no exclusiva de la versión del artículo publicado en esta revista (p. ej., incluirlo en un repositorio institucional o publicarlo en un libro) siempre que indiquen claramente que el trabajo se publicó por primera vez en esta revista.<br /><br /></li><li>Se permite y recomienda a los autores/as a publicar su trabajo en Internet (por ejemplo en páginas institucionales o personales) antes y durante el proceso de revisión y publicación, ya que puede conducir a intercambios productivos y a una mayor y más rápida difusión del trabajo publicado</li></ol>Study of Thermal Performance of Vaccum-Tube for Solar Water Heaters Adapted for Peruvian Coastal Scenario
https://revistas.unitru.edu.pe/index.php/PGM/article/view/6820
<p>The present research aimed to theoretically determine the arrangements of evacuated tubes, considering both tilt angle and inter-tube spacing, that maximize the total annual energy collection for five Peruvian coastal cities. The parameters considered included tube dimensions, azimuthal orientation, tilt angle, and inter-tube spacing. To perform a parametric study of the total solar energy captured by a single evacuated tube, varying the tilt angle for each of the 365 days of the year, the spacing between tubes, and the geographic location of five coastal Peruvian cities, a mathematical model was implemented in Matlab/Octave. The results show that maximum solar energy collection is achieved with tilt angles between 0° and 15° and a relative spacing between tubes equal to twice the outer diameter. Furthermore, it was demonstrated that the optimal operating tilt angles of evacuated tubes depend on the specific city in which they are installed. Unlike commercial systems, tubes arranged at a 15° tilt can capture greater amounts of energy without compromising their thermal conversion through the thermosiphon effect.</p>Yván René Leiva CalvanapónElder Marino Mendoza Orbegoso
Copyright (c) 2025
https://creativecommons.org/licenses/by/4.0/deed.es
2025-10-042025-10-0421392110.17268/scien.inge.2025.03.01Plan for the minimization and valoration of hazardous waste generated in vehicle maintenance workshops
https://revistas.unitru.edu.pe/index.php/PGM/article/view/6853
<p>This article presents a technical proposal to minimize and recover hazardous waste generated in a vehicle maintenance workshop focused on oil changes for buses and trucks. A descriptive methodology based on direct observation of the processes and documentary analysis was applied, identifying inadequate practices in the management of contaminated oils, filters, rags, and containers. Based on the diagnosis, actions such as source segregation, safe storage, and channeling to authorized managers were implemented. As a result, a 38,0% reduction in hazardous waste generation was achieved, highlighting a 30,0% reduction in used oils and a 23,0% reduction in contaminated filters. Likewise, 100,0% of the collected oils and 65,0% of the metal filters were recovered, representing an overall recovery of 62,0% of the total segregated waste. Overall, the proposal significantly contributed to improving environmental control, reducing operational risks, and strengthening regulatory compliance, positioning itself as a viable and sustainable alternative for hazardous waste management in maintenance workshops.</p>José Caballero CaballeroSegundo SeijasPriscilla Seijas
Copyright (c) 2025
https://creativecommons.org/licenses/by/4.0/deed.es
2025-10-112025-10-11213233010.17268/scien.inge.2025.03.02