Humidity Conditions of Enclosing Structure with Silicate Brick Veneer and Variable Air Gap

2015 ◽  
Vol 725-726 ◽  
pp. 71-79
Author(s):  
Mikhail Petrichenko ◽  
Darya Nemova ◽  
Arina Bogomolova ◽  
Anastasiya Kopylova

The main function of walling system is to protect from environmental impact and to create favorable climate indoors. At the present time people use such tape of structures, such as: wall with silicate brick veneer, curtain wall system with a thin plaster layer and curtain wall system with air gap as well as without it. The results of the thermomoist calculation of enclosing structures with silicate brick veneer without air gap is presented in article. Technical guidelines for normalization of humidity conditions for data structures are provided in article. The main purpose is to calculate and to develop design consideration for realization enclosing structures with silicate brick veneer without air gap. The results of the calculation show conformity of the walling system to the required energy efficiency, hygiene and comfort standards.

2014 ◽  
Vol 525 ◽  
pp. 447-450
Author(s):  
Hyun Jung Choi ◽  
Yu Min Kim ◽  
Min Seon Jang ◽  
Gyeong Seok Choi ◽  
Jae Sik Kang

Recently, revised certification of Building Energy Efficiency Rating System has been distendedly implemented in public buildings. The Ministry of Land, Infrastructure and Transport in Korea is promoting a Green Remodeling pilot project and proceeding a variety of researches related to the method of Energy Efficiency improvement. The aim of this study was to compare the amount of building energy consumption by improving envelope systems such as curtain wall, window, and wall system of deteriorated public buildings. By improving the envelope system, heating energy consumption has been reduced about 37%.


BUILDER ◽  
2021 ◽  
Vol 284 (3) ◽  
pp. 20-25
Author(s):  
Maciej Stojak

Contemporary ecological buildings have no formal attributes that distinguish them from "standard" architecture. What is more - due to the requirements of the construction law regarding energy efficiency, currently designed buildings almost always are equipped with technologies or elements that could be described as "green" or "health promoting". The aim of the article is to check whether this thesis is indeed true. The subject of the analysis are facades - the element with the greatest impact on the shape of the building. The innovative functions fulfilled by these structures were analysed. The examples - depending on the function performed - were divided into groups: energy production, pollution absorption, thermal energy storage, response to environmental conditions and the use of recycled materials. Relatively common and experimental technologies were considered. One of the tasks of the article is an attempt to determine whether, in relation to the mentioned technologies, it is possible to assess their direct impact on the health of the inhabitants. Final conclusions were drawn on the basis of a comparison of the characteristic parameters and the environmental impact of smart skin façades.


Author(s):  
Raffaele Saladino ◽  
Giorgia Botta ◽  
Marcello Crucianelli

Organosulfur compounds show a negative environmental impact because of SOx emissions by combustion of fuel oils. As a consequence, removal of sulfur is becoming a worldwide challenge. The hydrodesulfurization (HDS) process achieves limited performances in the case of refractory S-containing aromatic compounds, such as thiophene and substituted benzothiophenes (BTs), which require highly energy-demanding conditions (high temperature and pressure conditions). Oxidative desulfurization (ODS) is considered the most promising alternative to HDS. During ODS treatment, the organosulfur compounds are oxidized to corresponding sulfoxides and sulfones, which can be successively removed by extraction with polar solvents. Different stoichiometric oxidants have been used in the ODS processes with a different degree of efficacy and environmental impact. The design and development of catalytic procedures can increase the ODS energy efficiency as well as make it more economical and environmentally acceptable. Here we describe the advances in nanostructured organometallic catalysis and biotechology applied to ODS treatment.


2020 ◽  
Vol 12 (19) ◽  
pp. 8246
Author(s):  
Darius Juknevičius ◽  
Zita Kriaučiūnienė ◽  
Algirdas Jasinskas ◽  
Egidijus Šarauskis

Agricultural management, environmentally friendly technologies, chemical, organic and bio-based substances used, as well as meteorological factors, have a significant impact on the fluctuations of soil organic carbon (SOC). The aim of this research was to analyze the effect of different biopreparations on the changes of SOC content and the winter wheat and winter oilseed rape yields by assessing the energy consumption efficiency and the environmental impacts. The experimental research was conducted from 2017 to 2019 in three different treatments, in two of which were used either a molasses and magnesium sulphate based-biopreparation (T1) or a bacteria-based biopreparation (T2), while treatment T3 was applied as a control where no biopreparations were used. The dynamics of SOC content were analyzed at two depths: 0–10 and 10–20 cm. For the analysis of energy efficiency indicators and environmental impacts, the greenhouse gas (GHG) and energy consumption conversion equivalents were used. A summary of the results showed that both types of biopreparations had a positive effect on the changes of SOC content, which was especially evident in the deeper layers at 10–20 cm depth, where, irrespective of the crop type, a more significant increase of the SOC content was observed every year of the experiment compared to the control treatment. Biopreparations had a significant effect in increasing the winter wheat and winter oilseed rape yield. The best energy efficiency ratio was observed in winter wheat (4.84) and winter oilseed rape (5.11) in treatment T1. The results of the environmental impact assessment showed that the lowest GHG emissions were recorded in the winter wheat production in treatment T1 at 108.7–149.1 kg CO2eq Mg−1, while the highest were observed in oilseed rape production in the control treatment T3 at 343.4 kg CO2eq Mg−1.


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