scholarly journals Full-Fledged Use of Semi-Basement Space by Building Seismic-Resistance, Energy-Efficiency, Microclimate and Preventing Influences of Thermal Bridges and Mold Growth

2022 ◽  
Vol 10 (1) ◽  
pp. 131-143
Author(s):  
Erkin Boronbaev ◽  
Berikbay Unaspekov ◽  
Aigul Abdyldaeva ◽  
Elmira Tohlukova ◽  
Kamoliddin Holmatov ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Seismic Resistance ◽  
Mold Growth ◽  
Thermal Bridges

Thermal Bridges Minimizing through Typical Details in Low Energy Designing

2014 ◽  
Vol 899 ◽  
pp. 62-65 ◽  
Author(s):  
Rastislav Ingeli ◽  
Boris Vavrovič ◽  
Miroslav Čekon
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
Energy Demand ◽  
Building Energy ◽  
Building Envelope ◽  
Low Energy ◽  
Building Energy Efficiency ◽  
Low Energy Buildings ◽  
Thermal Bridges ◽  
The Impact

Energy demand reduction in buildings is an important measure to achieve climate change mitigation. It is essential to minimize heat losses in designing phase in accordance of building energy efficiency. For building energy efficiency in a mild climate zone, a large part of the heating demand is caused by transmission losses through the building envelope. Building envelopes with high thermal resistance are typical for low-energy buildings in general. In this sense thermal bridges impact increases by using of greater thickness of thermal insulation. This paper is focused on thermal bridges minimizing through typical system details in buildings. The impact of thermal bridges was studied by comparative calculations for a case study of building with different amounts of thermal insulation. The calculated results represent a percentage distribution of heat loss through typical building components in correlation of various thicknesses of their thermal insulations.

scholarly journals Efficiency of Different Balcony Slab Modernization Method in Retrofitted Multi-Family Buildings

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6666
Author(s):  
Beata Sadowska ◽  
Piotr Bieranowski
Keyword(s):  
Energy Efficiency ◽  
Heat Loss ◽  
Cost Effective ◽  
Economic Effects ◽  
Loss Reduction ◽  
Modern Material ◽  
Eu Directive ◽  
Surface Condensation ◽  
Large Panel ◽  
Thermal Bridges

Many buildings have considerable thermal bridges at the junction of balcony slabs with walls. To achieve the new EU directive targets related to energy efficiency, greater attention should be paid to such design details. This study analyzes the efficiency of traditional balcony slab modernization methods, the use of modern insulation materials and a new alternative system: an added self-supporting light balcony system (LKBD) in retrofitted large-panel buildings. The main objective was to capture cost-effective renovation methods from both the heat loss reduction perspectives and risk of surface condensation. The analyses, carried out in four buildings, have shown that at current costs, the thermal modernization of balconies is not economically efficient (SPBT>98.4 years). However, it is necessary because leaving the balcony slabs without insulation or only insulating them from the bottom carries the risk of surface condensation. The most cost-effective renovation method is to insulate the balcony slabs from below and above with the thickest possible XPS layer (SPBT = 98.4 years; 107.4 years). Replacing XPS with modern material increases SPBT by almost 50%, for the LKBD system, SPBT = 269.2–281.5 years. More favorable energy and economic effects related to the reduction of balcony thermal bridges were achieved in the wall with lower insulation.

scholarly journals Insulating coat to prevent mold growth in thermal bridges

2017 ◽  
Vol 134 ◽  
pp. 414-422 ◽  
Author(s):  
Stefano Fantucci ◽  
Francesco Isaia ◽  
Valentina Serra ◽  
Marco Dutto
Keyword(s):  
Mold Growth ◽  
Thermal Bridges

scholarly journals Analysis of Energy Efficiency in Construction Solutions at the Façade-Slab Connection

2013 ◽  
Vol 787 ◽  
pp. 731-735 ◽  
Author(s):  
Jose Vercher ◽  
Carlos Lerma ◽  
Marisol Vidal ◽  
Enrique Gil
Keyword(s):  
Thermal Analysis ◽  
Energy Efficiency ◽  
Energy Saving ◽  
Heat Loss ◽  
Thermal Insulation ◽  
Thermal Loss ◽  
Constructive Solution ◽  
Thermal Bridge ◽  
Thermal Bridges

Façade-slab connection is the main thermal bridge of buildings. In this work, different options are analyzed according to the location of the thermal insulation. Heat loss is measured for each option. According to thermal analysis performed we conclude that cover the buildings façade completely without interruption at the slabs front is essential to avoid thermal bridges. The new option that interrupts the cantilever to put insulation on the entire façade is just effective to isolate the entire cantilever and is an easier constructive solution. This insulation continuity is needed to prevent ceiling condensation, since the energy saving is not important compared to windows thermal loss.

scholarly journals Reliability and sustainability analysis of large panel residential buildings in Sofia, Skopje and Novi Sad

2011 ◽  
Vol 9 (1) ◽  
pp. 161-176 ◽  
Author(s):  
Radomir Folic ◽  
Mirjana Laban ◽  
Verica Milanko
Keyword(s):  
Energy Efficiency ◽  
Comparative Analysis ◽  
Residential Buildings ◽  
Structural Characteristics ◽  
Seismic Resistance ◽  
Urban Settlement ◽  
Analysis And Evaluation ◽  
Sustainability Analysis ◽  
Large Panel ◽  
Novi Sad

Large panel residential buildings, dating from second half of 20 Century, are to be found in almost every urban settlement across Europe. Within the context of three case studies of urban blocks in Bulgaria (Mladost - Sofia), Macedonia (Karpos III - Skopje) and Serbia (Detelinara - Novi Sad), comparative analysis and evaluation of technical and structural characteristics according to reliability (seismic resistance and fire safety) and sustainability (energy efficiency, internal air quality, accessibility) criteria has been conducted. Additionally, previous experiences from individual renewal projects are reviewed. Previous experiences and comparative analysis results, could contribute to formulation of wider applicable solutions and development of new urban renewal strategies.

Drying and heating of scrap metal at steelmaking: industrial safety, economics, ecology

2020 ◽  
Vol 76 (12) ◽  
pp. 1353-1258
Author(s):  
V. A. Spirin ◽  
V. E. Nikol’skii ◽  
D. V. Vokhmintsev ◽  
A. A. Moiseev ◽  
P. G. Smirnov ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
High Efficiency ◽  
Steel Production ◽  
Scrap Metal ◽  
Industrial Safety ◽  
Technical Solution ◽  
Metal Charge ◽  
Basic Task ◽  
Scrap Heating ◽  
Winter Time

At steel production based on scrap metal utilization, the scrap heating before charging into a melting facility is an important way of energy efficiency increase and ecological parameters improving. In winter time scrap metal charging with ice inclusions into a metal melt can result in a considerable damage of equipment and even accidents. Therefore, scrap preliminary drying is necessary to provide industrial safety. It was shown, that in countries with warm and low-snow climate with no risk of scrap metal icing up during its transportation and storing in the open air, the basic task being solved at the scrap drying is an increase of energy efficiency of steelmaking. InRussiathe scrap metal drying first of all provides the safety of the process and next - energy saving. Existing technologies of scrap metal drying and heating considered, as well as advantages and drawbacks of technical solutions used at Russian steel plants. In winter time during scrap metal heating at conveyers (Consteel process) hot gases penetrate not effectively into its mass, the heat is not enough for evaporation of wetness in the metal charge. At scrap heating by the furnace gases, a problem of dioxines emissions elimination arises. Application of shaft heaters results in high efficiency of scrap heating. However, under conditions of Russian winter the upper scrap layers are not always heated higher 0 °С and after getting into a furnace bath the upper scrap layers cause periodical vapor explosions. The shaft heaters create optimal conditions for dioxines formation, which emit into atmosphere. It was shown, that accounting Russian economic and nature conditions, the metal charge drying and heating in modified charging buckets by the heat of burnt natural gas or other additional fuel is optimal. The proposed technical solution enables to burnt off organic impurities ecologically safely, to melt down ice, to evaporate the wetness in the scrap as well as to heat the charge as enough as the charging logistics enables it. The method was implemented at several Russian steel plants. Technical and economical indices of scrap metal drying in buckets under conditions of EAF-based shop, containing two furnaces ДСП-100, presented.

Perspectives and Regulation of the Russian Market for Project-based Transactions under the Kyoto Protocol

2008 ◽  
pp. 108-125
Author(s):  
K. Zavodov
Keyword(s):  
Energy Efficiency ◽  
Market Mechanism ◽  
Point Of View ◽  
Market Regulation ◽  
Foreign Investments ◽  
Russian Market ◽  
Increase Energy Efficiency ◽  
New Form ◽  
Contract Structure ◽  
Carbon Fund

Project-based transactions (PBTs) are a market mechanism of attracting foreign investments in order to abate greenhouse gas emissions and increase energy efficiency of the country’s enterprises. The article provides a classification and analyzes advantages and drawbacks of PBTs from the point of view of a host country. The main trends and factors determining the dynamics of the PBT market are described. Given that Russia currently lags behind the leaders of the PBT market, an incorporation of a state carbon fund is put forward with an aim of channelling PBTs through it. This paper proposes a form of PBT market regulation by incorporating an option mechanism into the contract structure of a transaction. A comparison of the new form of regulation with the tools that are currently in use in Russia and other countries demonstrates its greater economic efficiency under uncertainty.

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