Bulletin of the Transilvania University of Brasov. Series I

https://webbut.unitbv.ro/index.php/Series_I/issue/feed Bulletin of the Transilvania University of Brasov. Series I - Engineering Sciences 2023-07-06T00:00:00+00:00 Lecturer dr. eng. Ovidiu DEACONU editor.but@unitbv.ro Open Journal Systems <h1 class="page_title">Aim</h1> The Journal aims to be a forum for the latest results in engineering research, promoting integrated, interdisciplinary approaches, focusing on sustainable energy and high-tech product development. The journal is open to research groups all over the world and mostly welcomes scientific papers from groups involving young researchers and Ph.D. students. The Journal welcomes contributions that meet the general criteria of relevance and scientific excellence. The Journal is indexed in EBSCO Publishing DataBase (<a href="http://webbut.unitbv.ro/public/site/documents/admin/a9h-subject.xls">http://www.ebscohost.com/titleLists/a9h-subject.xls</a>), from 2008, Crossref (<a href="https://search.crossref.org/?q=Bulletin+of+transilvaniaBulletin+of+the+Transilvania+University+of+Brasov.+Series+I+-+Engineering+Sciences&from_ui=yes" target="_blank" rel="noopener">https://search.crossref.org</a>), from January 2019, and is accredited by the Romanian National Council of Scientific Research (CNCS) in the <a href="https://uefiscdi.gov.ro/userfiles/file/IC6%202011/Reviste%20romanesti%20recunoscute%20de%20CNCSIS-%20categoria%20B_plus.pdf">category B+</a> of the scientific magazine. <a href="http://webbut.unitbv.ro/index.php/Series_I/about" target="_blank" rel="noopener">Read more</a> Old Site Use this <a title="Series_I" href="http://webbut2.unitbv.ro/Bulletin/Series%20I/Series%20I.html" target="_blank" rel="noopener">LINK </a>to access the content of the old Bulletin of the Transilvania University of Brasov. Series I: Engineering Sciences journal site! https://webbut.unitbv.ro/index.php/Series_I/article/view/5019 Study on Designing a Modular House 2023-07-05T11:37:27+00:00 A.F. Barbu barbu1@yahoo.com L. Barsan lbarsan@unitbv.ro

The paper presents a study on creating a modular construction based on a simple shaped module. The solution resulted from large research on existing designs, the idea of modular houses having not a long history, but a rich one. The existing solutions helped in formulating a list of requirements that included most of their advantages. The basic module is a square-shaped panel that can be easily personalized according to necessities: a wall with a door or/and windows, ceiling, and floor. The study includes solutions regarding electric wiring and plumbing design for bathrooms or kitchens. The design included solutions for creating different configurations and volumes for the final building involving the designing of connecting modules.

2023-07-06T00:00:00+00:00 Copyright (c) 2022 Bulletin of the Transilvania University of Brasov. Series I: Engineering Sciences https://webbut.unitbv.ro/index.php/Series_I/article/view/5020 Numerical Modelling of Heat Transfer in Engine Exhaust Manifolds 2023-07-05T11:46:41+00:00 A. Mazilu mazilu1@yahoo.com L. Costiuc lcostiuc@unitbv.ro

The purpose of the paper is to study the heat transfer in the exhaust manifold of a naturally aspirated diesel engine. The work started from the exhaust manifold of the test engine D30 which was redesigned in CATIA V5, then pre-processed in Comsol Multiphysics. The results of the post-processing phase have generated temperature, velocity, pressure, and Reynolds number fields which were compared with experimental data from the engine dynamometric test. For higher accuracy, the temperatures of exhaust manifold surfaces were measured both with IR Camera Imager and thermocouples.

2023-07-06T00:00:00+00:00 Copyright (c) 2022 Bulletin of the Transilvania University of Brasov. Series I: Engineering Sciences https://webbut.unitbv.ro/index.php/Series_I/article/view/5018 Finite Element Modeling Considerations of Deep Foundations. The Control Instruments in the Discretization Mesh Generation at the Pilot-Raft Interaction Point 2023-07-05T11:20:22+00:00 Adrian Ghencea ghencea1@yahoo.com

The article aims to give a less theoretical and more practical definition to the tool called Subregion, from which the advantage of directly controlling the stiffness of the scraper slab without bringing an additional load of its own weight to the pilot's head can be concretely demonstrated. Deep foundations will therefore be analyzed. The Subregion is extremely useful in finite element modeling because it helps define caps without breaking the continuous surface of tile elements. This aspect will be covered in detail in the article, such modeling with Subregions leads to high-performance computational models, optimal from the point of view of file sizes. From practice, the author will present two case studies, concluding on the optimal ratio between the precision of the calculations and the volume of probable errors at the level of the results.