Journal of Architectural and Engineering Research https://jaer.nuaca.am/index.php/jaer <p><em><strong>Journal of Architectural and Engineering Research</strong></em> is peer-reviewed, open-access e-journal, free of charge.</p> en-US <p><strong><em>Creative Commons Attribution-Non-Commercial (CC BY-NC)</em></strong>. <strong>CC BY-NC</strong> allows users to copy and distribute the article, provided this is not done for commercial purposes. The users may adapt – remix, transform, and build upon the material giving appropriate credit, providing a link to the license. The full details of the license are available at <a href="https://creativecommons.org/licenses/by-nc/4.0/">https://creativecommons.org/licenses/by-nc/4.0/</a>.</p> jaer@nuaca.am (Manuk Barsegyan) ashotgev@mail.ru (Ashot Gevorgyan) Thu, 25 Jan 2024 23:21:12 +0400 OJS 3.3.0.13 http://blogs.law.harvard.edu/tech/rss 60 Development of Technology and a Convertеr for Neutralizing Greenhouse Gases Emitted from Automobiles https://jaer.nuaca.am/index.php/jaer/article/view/151 <p><em>The article touches upon the issues of global warming associated with carbon dioxide (CO<sub>2</sub>) emissions into the atmosphere from vehicle internal combustion engines (ICE). To neutralize existing greenhouse gases emitted by ICE, in particular CO<sub>2</sub>, the interaction of the latter with various chemicals has been studied. The dynamics of exhaust gas emissions from ICE cylinders were observed. The experimental research was conducted to develop a greenhouse gas neutralization technology. Carbon dioxide neutralization converter with three neutralization batteries and a homogenization device is presented. This converter can guarantee CO<sub>2</sub> neutralization of up to 92%. </em><em>The formation of CO<sub>2</sub> in the cylinders of modern petrol engines is due to the final combustion of the air-petrol fuel mixture. The combustion of the latter in the cylinder can be heterogeneous and diffusive. In addition, CO<sub>2</sub> is generated in large quantities during diffusion combustion. </em><em>The most effective method of diffusive combustion was chosen by the constructors of modern ICE, which is the formation of an artificial turbulent gas-dynamic condition for the fuel mixture due to the increase in the temperature of the air adsorbed in the cylinder, which ensures the engine's thermal energy efficiency coefficient of up to 35%.</em> <em>The CO<sub>2</sub> volume in the exhaust gases of such engines reaches up to 16%. </em><em>Thus, considering the perfection of modern ICE design for providing a high-efficiency reaction for the hydrocarbon oxidation in the fuel mixture in the combustion chamber, it becomes apparent that t</em><em>he presence of about 16% CO<sub>2</sub> in the fractional composition of emitted dissolved gases is a serious problem in terms of increasing the volume of greenhouse gases in the atmosphere</em>. <em>Therefore, the goal of this article is to develop a reduction technology.</em></p> Yeghiazar Vardanyan, Valerik Harutyunyan, Vladimir Koichev, Karapet Mosikyan Copyright (c) 2024 Valerik Harutyunyan, Yeghiazar Vardanyan, Vladimir Koichev, Karapet Mosikyan https://creativecommons.org/licenses/by-nc/4.0 https://jaer.nuaca.am/index.php/jaer/article/view/151 Thu, 25 Jan 2024 00:00:00 +0400 Trachyandesite: A Resource for the Future of Old Buildings https://jaer.nuaca.am/index.php/jaer/article/view/152 <p><em>The aim of this action research project is to (re)define and (re)get to know the material trachyandesite. A magmatic rock that has contributed to the identity of the Massif Central region, through the construction of towns since the 15th century, its exploitation has accelerated with industrial growth. Its presence grew and its uses spread throughout France. If this stone confers a specific and visual identity, it is today one of the components of the built heritage of a French region, at one with the landscape because it is at its heart. Understanding the materiality of this stone and its many characteristics is a key factor in the restoration of old buildings. Could knowledge of the qualities of trachyandesite (refractory stone, high pyroscopic resistance) as a local, low-carbon-emission material enhance the value of constructions and/or restorations that could be described as geosourced?</em></p> Gwenn Gayet-Kerguiduff Copyright (c) 2024 Gwenn Gayet-Kerguiduff https://creativecommons.org/licenses/by-nc/4.0 https://jaer.nuaca.am/index.php/jaer/article/view/152 Tue, 13 Feb 2024 00:00:00 +0400