scholarly journals SELECTION OF THE INSULATION MATERIALS FOR REFURBISHMENT PURPOSES

2017 ◽  
Vol 9 (2) ◽  
pp. 104-115 ◽  
Author(s):  
Irene LILL ◽  
Loreta KANAPECKIENE ◽  
Laura TUPENAITE ◽  
Jurga NAIMAVICIENE
Keyword(s):  
Material Selection ◽  
Residential Buildings ◽  
Assessment Method ◽  
Diffusion Resistance ◽  
Insulation Material ◽  
Insulation Materials ◽  
Increase Energy Efficiency ◽  
Water Vapour Diffusion ◽  
Building Facades ◽  
Selection Of

Refurbishment of the building facades of residential buildings, including insulation, is often considered as the most energy efficient renovation measure with the largest potential. One of the solutions to increase energy efficiency is the selection of the appropriate insulation materials of the external walls. The article proposes the approach for selection of the insulation material based on SAW multiple criteria assessment method. The proposed methodology is applied for the case of insulation material selection in refurbishment of 12-storey building in Vilnius, Lithuania. Research reveals that rock wool outperforms other materials by thermal conductivity, light weigh, water vapour diffusion resistance, highest flammability class, durability and lowest emission of CO2 and is an efficient insulation to be used for sustainable refurbishment solutions.

scholarly journals Aplikácia analytickej viacúrovňovej metódy pri výbere zatepľovacieho materiálu

2020 ◽  
Vol 19 (2) ◽  
pp. 21-26
Author(s):  
Michaela Horváthová ◽  
◽  
Linda Makovická-Osvaldová
Keyword(s):  
Thermal Insulation ◽  
Ignition Time ◽  
Insulation Material ◽  
Thermal Coefficient ◽  
Multilevel Method ◽  
Insulation Materials ◽  
Applied Method ◽  
Selection Of

The article deals with the selection of four types of insulation material based on the particular criteria. Specifically, it will be a matter of decision among facade insulation materials. We chose four species of the most used thermal insulation materials that are available on the market and are used frequently. The applied method is an analytical multilevel method that allows us to divide the whole problem into hierarchies and then compare two elements together and thus gain the weights of the criteria. Subsequently, we assessed the alternatives. The selected criteria are the price of the material, the thermal coefficient conductivity, flammability class and ignition time of the sample. The method is verified in the software BPMSG AHP priority calculator.

scholarly journals Selection of insulation-sewing materials for rooms of class «R» floating restaurant by the method of multi- criteria comparison of alternative options

2020 ◽  
pp. 103-108
Author(s):  
Anastasia A. Stepanova ◽  
Tatyana A. Mikheeva
Keyword(s):  
Comparison Method ◽  
Optimal Choice ◽  
Quality Level ◽  
Insulation Material ◽  
Interior Decoration ◽  
Insulating Materials ◽  
Insulation Materials ◽  
Technological Level ◽  
Selection Of

This article proposes and considers a method for solving the problem of the optimal choice of insulation and sewing materials for the interior of a floating class «P» restaurant. This method is based on the principle of multi-criteria comparison of alternative options [1]. For comparison, most suitable insulation materials for a vessel of this type were selected. Since in modern shipbuilding safety and comfort demands of the interior of the vessels are high, so the requirements for insulation materials on the interior are also high. Various characteristics of insulating and sewing materials, which determine their quality level, were analyzed in details. When studying the characteristics of insulating materials, the technological level and competitiveness of the manufacturer were taken into account. To determine the most suitable insulation material for the interior decoration of the floating restaurant, multi-criteria comparison method was first applied. The determination of the materials competitiveness was made.

scholarly journals Selection of Effective Thermal Insulation Materials for a Liquefied Natural Gas Tanks

2021 ◽  
Vol 2096 (1) ◽  
pp. 012049
Author(s):  
O N Medvedeva ◽  
S D Perevalov
Keyword(s):  
Natural Gas ◽  
Liquefied Natural Gas ◽  
Operating Conditions ◽  
Insulation Material ◽  
Optimal Thickness ◽  
Natural Gases ◽  
Insulation Materials ◽  
Technological Facility ◽  
Cryogenic Tanks ◽  
Selection Of

Abstract The object of the research is an isothermal tank container for storage and transportation of liquefied natural gases, which requires special operating conditions and is related to a technological facility of increased danger. The purpose of the study is to substantiate the type and thickness of the insulating material to reduce the losses of liquefied natural gas during storage and transportation. Based on the results of the analysis, effective insulation materials were selected for use in cryogenic tanks for isothermal storage of LNG, the optimal thickness of the insulation material was determined, which provides the required level of losses for gas evaporation.

Selection of Insulation Materials and Insulation Performance with Consideration of Building Energy when Designing a Building

2015 ◽  
Vol 752-753 ◽  
pp. 724-727
Author(s):  
Young Sun Jeong
Keyword(s):  
South Korea ◽  
Energy Saving ◽  
Building Materials ◽  
Residential Buildings ◽  
Building Energy ◽  
Energy Performance ◽  
Insulation Material ◽  
Design Standards ◽  
Insulation Materials ◽  
Insulation Performance

Building designs should be reviewed from the aspects of both design aesthetics and energy performance. The installation of insulation materials in external walls, roofs, and floors is a basic method that could reduce energy losses from buildings. The purpose of this study is to investigate the types of insulation materials selected as building materials and the insulation performance of each building elements when designing new buildings in South Korea. The insulation performance of the external walls, roofs, and floors of buildings were compared with the insulation criteria of the Energy Saving Design Standards of Buildings in building energy code. The design documents, as well as drawings and building energy saving plan sheets, which are required to be submitted for buildings larger than a certain size in South Korea, were collected. The most widely used insulation material in multi-family housings and non-residential buildings was extruded polystyrene (XPS). The insulation performance of external walls, roofs, and floors were higher than that established by design criteria of building energy code. In particular, the external walls had roughly a 25.5% better insulation performance than the insulation criteria.

Review of Latest Developments in Microporous Aerogel for Building Applications

2011 ◽  
Vol 71-78 ◽  
pp. 1967-1970 ◽  
Author(s):  
Yan Qi Cui ◽  
Saffa Riffat
Keyword(s):  
Thermal Comfort ◽  
Thermal Insulation ◽  
Energy Cost ◽  
Air Conditioning ◽  
Climatic Conditions ◽  
Insulation Material ◽  
The Novel ◽  
Thermal Insulation Material ◽  
Insulation Materials ◽  
Selection Of

Buildings are large consumers of energy in all countries. In regions with harsh climatic conditions, a substantial share of energy goes to heat and cool buildings. This heating and air-conditioning lost can be reduced through many means, such as the selection of the building thermal insulation materials. The proper use of thermal insulation material in buildings does not only contribute in reducing the annual energy cost but also helps in extending the periods of thermal comfort without reliance on mechanical heating and air-conditioning. Aerogel is one of the novel insulation these years, thermal conductivities of 0.04 W/mK less can be achieved using it. The paper is concerned with a review of Microporous Aerogel for building applications. And it also provides information about their performance.

Untersuchungen zum Diffusionswiderstand von Holzwerkstoffen | Diffusion resistance of timber materials

2005 ◽  
Vol 156 (3-4) ◽  
pp. 100-103
Author(s):  
Rudolf Popper ◽  
Peter Niemz ◽  
Gerhild Eberle
Keyword(s):  
Relative Humidity ◽  
Water Vapour ◽  
Middle Lamella ◽  
Solid Wood ◽  
Diffusion Resistance ◽  
Water Vapour Diffusion ◽  
Wood Panels ◽  
Vapour Diffusion ◽  
Wet Climate ◽  
Panel Thickness

The water vapour diffusion resistance of timber materials were tested in a wet climate (relative humidity ranging from 100%to 65% at 20 °C) and in a dry climate (relative humidity ranging from 0% to 65% and from 0% to 35% at 20 °c) with variation by relative humidity and vapour pressure gradient. The diffusion resistance of multilayer solid wood panels lies under or within the range of the solid wood (spruce), tending even to a lower range. This can be attributed to the loosely inserted middle lamella of the used solid wood panels, which were not correctly glued by the manufacturer. The diffusion resistance of the solid wood panels increases with decreasing moisture content and decreasing panel thickness, as well as with increasing water vapour gradient from 818 to 1520 Pa. There were clear differences between the tested timber materials. The diffusion resistance of particle composites is strongly dependent on the specific gravity. Due to laminar particles OSBs(Oriented Strand Boards) have a larger diffusion resistance than chipboards. The water vapour diffusion resistance of OSBs lies within the range of plywood.

scholarly journals A Systematic Literature Review of Multi-Criteria Decision-Making Methods for Sustainable Selection of Insulation Materials in Buildings

2021 ◽  
Vol 13 (2) ◽  
pp. 737
Author(s):  
Indre Siksnelyte-Butkiene ◽  
Dalia Streimikiene ◽  
Tomas Balezentis ◽  
Virgilijus Skulskis
Keyword(s):  
Decision Making ◽  
Literature Review ◽  
Systematic Literature Review ◽  
Energy Demand ◽  
Energy Performance ◽  
Future Research ◽  
Multi Criteria Decision Making ◽  
Insulation Materials ◽  
Advantages And Disadvantages ◽  
Selection Of

The European Commission has recently adopted the Renovation Wave Strategy, aiming at the improvement of the energy performance of buildings. The strategy aims to at least double renovation rates in the next ten years and make sure that renovations lead to higher energy and resource efficiency. The choice of appropriate thermal insulation materials is one of the simplest and, at the same time, the most popular strategies that effectively reduce the energy demand of buildings. Today, the spectrum of insulation materials is quite wide, and each material has its own specific characteristics. It is recognized that the selection of materials is one of the most challenging and difficult steps of a building project. This paper aims to give an in-depth view of existing multi-criteria decision-making (MCDM) applications for the selection of insulation materials and to provide major insights in order to simplify the process of methods and criteria selection for future research. A systematic literature review is performed based on the Search, Appraisal, Synthesis and Analysis (SALSA) framework and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. In order to determine which MCDM method is the most appropriate for different questions, the main advantages and disadvantages of different methods are provided.

Effects of exposure on water relations and photosynthesis of western hemlock in habitat forms

1976 ◽  
Vol 6 (1) ◽  
pp. 40-48 ◽  
Author(s):  
R. A. Keller ◽  
E. B. Tregunna
Keyword(s):  
Light Intensity ◽  
Water Content ◽  
Water Vapour ◽  
Western Hemlock ◽  
Diffusion Resistance ◽  
The Sun ◽  
Evaporative Demand ◽  
Photosynthetic Rates ◽  
Water Vapour Diffusion ◽  
Vapour Diffusion

Measurements of relative turgidity, transpiration rates, and photosynthetic rates on sun-grown and shade-grown western hemlock (Tsugaheterophylla (Raf.) Sarg.) were used to indicate effects of varying degrees of exposure.The sun-adapted form had low photosynthetic rates but maintained its water content under conditions of high evaporative demand. The shade-adapted form desiccated under exposed conditions, and in contrast with the sun-adapted form, its water vapour diffusion resistance decreased with increasing light intensity.

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