scholarly journals Assessment of the energy conservation potential of active (variable thermal resistance and switchable absorptance) building thermal insulation systems

1990 ◽  
Author(s):  
H Fine ◽  
D McElroy
Keyword(s):  
Energy Conservation ◽  
Thermal Resistance ◽  
Thermal Insulation ◽  
Insulation Systems

scholarly journals Evaluation of thermal properties of insulation systems in pitched roofs

2019 ◽  
Vol 91 ◽  
pp. 02047 ◽  
Author(s):  
Alexey Zhukov ◽  
Armen Ter-Zakaryan ◽  
Ekaterina Bobrova ◽  
Igor Bessonov ◽  
Andrey Medvedev ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Properties ◽  
Water Vapor ◽  
Thermal Resistance ◽  
Heat Loss ◽  
Thermal Insulation ◽  
Insulating Layer ◽  
Insulation Systems ◽  
Materials Used ◽  
Supporting Structures

The article outlines the basic requirements for pitched roof insulation systems. The analysis of the properties of thermal insulation materials used in insulation systems was conducted. It is substantiated that the thermal resistance of such structures on the surface of the roof is formed taking into account the thermal conductivity of thermal insulation, thermal conductivity of wooden rafters and heat loss through the leakiness of joints and mounting devices. An assessment was made of the effect of loads of various types on the heat-insulating layer, namely: the effect of the air flow in the ventilated gap; the movement of the vapor-air mixture in the material; condensation of water vapor and penetration of drip liquid; exfiltration of air at the joints of the plates and on the surfaces of contact with the supporting structures. The expediency of using products on the basis of unstitched polyethylene foam in the construction of pitched roofs with a wooden roof system, taking into account the advantages and features of this material, as well as taking into account the possibility of creating a seamless insulating shell, is substantiated.

scholarly journals The application of the facade thermal insulation systems during the energy conservation remedial measures of the structures being heightened

2004 ◽  
Vol 3 (1) ◽  
pp. 57-68 ◽  
Author(s):  
Veliborka Bogdanovic ◽  
Slobodan Samardzic
Keyword(s):  
Energy Conservation ◽  
Thermal Insulation ◽  
Heat Balance ◽  
Residential Buildings ◽  
Remedial Measures ◽  
Entire Structure ◽  
Heat Technology ◽  
Insulation Systems ◽  
The Aesthetic ◽  
The Heat Balance

Bearing in mind the fact that during the design and construction of the additional stories to the residential buildings the standards about the heat technology in the civil engineering were not met for the entire structure and very often not even for the additional stories of the structure, we deemed that it is necessary to emphasize the possibility of the heat balance improvements through the application of the facade thermal insulation systems on the non-insulated facade walls. That this concept is valid, is supported by the fact that in practice, the aesthetic and functional repairs of the existing facade walls of the heightened buildings, offer a favorable substrate (basis) for the application of the facade thermal insulation systems and offers an opportunity for the regular remedial measures of the building, from the aspect of energy issues. Therefore, the objective of the study is the quantification of the participation of the facade walls in the heat balance in several typical procedures of the heightening of residential buildings, and the analysis of the possibility of a correction by the application of the FACADE THERMAL INSULATION SYSTEMS. Thus, the relevant parameters of the heat balance for the previous status of the building were analyzed for several characteristic building heightening cases, and they were compared to the parameters after the additional application of the facade thermal insulation systems. The research results on the structures-models have been illustrated with sketches, graphs, diagrams and tables.

scholarly journals The Analysis of Small Investors’ Demands on a Thermal Insulation System for a Family House: A Case Study

2021 ◽  
Vol 13 (5) ◽  
pp. 2491
Author(s):  
Alena Tažiková ◽  
Zuzana Struková ◽  
Mária Kozlovská
Keyword(s):  
Decision Making ◽  
Thermal Insulation ◽  
Construction Cost ◽  
Environmental Cost ◽  
Multi Criteria Decision Making ◽  
Insulation System ◽  
Insulation Systems ◽  
Small Investors ◽  
The Cost ◽  
Family House

This study deals with small investors’ demands on thermal insulation systems when choosing the most suitable solution for a family house. By 2050, seventy percent of current buildings, including residential buildings, are still expected to be in operation. To reach carbon neutrality, it is necessary to reduce operational energy consumption and thus reduce the related cost of building operations and the cost of the life cycle of buildings. One solution is to adapt envelopes of buildings by proper insulation solutions. To choose an optimal thermal insulation system that will reduce energy consumption of building, it is necessary to consider the environmental cost of insulation materials in addition to the construction cost of the materials. The environmental cost of a material depends on the carbon footprint from the initial origin of the material. This study presents the results of a multi-criteria decision-making analysis, where five different contractors set the evaluation criteria for selection of the optimal thermal insulation system. In their decision-making, they involved the requirements of small investors. The most common requirements were selected: the construction cost, the construction time (represented by the total man-hours), the thermal conductivity coefficient, the diffusion resistance factor, and the reaction to fire. The confidences of the criteria were then determined with the help of the pairwise comparison method. This was followed by multi-criteria decision-making using the method of index coefficients, also known as the method of basic variant. The multi-criteria decision-making included thermal insulation systems based on polystyrene, mineral wool, thermal insulation plaster, and aerogels’ nanotechnology. As a result, it was concluded that, currently, in Slovakia, small investors emphasize the cost of material and the coefficient of thermal conductivity and they do not care as much about the carbon footprint of the material manufacturing, the importance of which is mentioned in this study.

scholarly journals Thermal Insulation Materials: A Tool for Energy Conservation

2017 ◽  
Vol 08 (04) ◽  
Author(s):  
Gajanan Deshmukh ◽  
Preeti Birwal ◽  
Rupesh Datir ◽  
Saurabh Patel
Keyword(s):  
Energy Conservation ◽  
Thermal Insulation ◽  
Insulation Materials

scholarly journals The influence of rural building energy saving design on clean energy heating in winter

2021 ◽  
Vol 25 (4 Part B) ◽  
pp. 3103-3112
Author(s):  
Rao Shun
Keyword(s):  
Energy Conservation ◽  
Thermal Insulation ◽  
Rural Areas ◽  
Heat Load ◽  
Residential Buildings ◽  
Clean Energy ◽  
Building Energy ◽  
Economic Conditions ◽  
Building Energy Saving ◽  
Technical Guidance

Taking a typical rural building as an example, the paper compares various factors that affect the heat load of the building, studies related literature and the living habits of rural residents, and suggests that the calculated temperature of the heating room in rural residential buildings in cold areas in winter is 14~17?C. Analyze and compare the initial investment and the investment pay-back period after the thermal insulation measures are adopted for each envelope structure. With the dual goals of energy conservation and economy, it is recommended that rural households with different economic conditions adopt different thermal insulation measures to provide clean heating in rural areas in the cold north. Provide strong technical guidance for energy conservation and emission reduction.

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