Application Analysis of the Wall Insulation Construction Technology in Energy-Saving of Building

2014 ◽  
Vol 556-562 ◽  
pp. 872-876
Author(s):  
Gang Li
Keyword(s):  
Energy Saving ◽  
Energy Performance ◽  
Wall Structure ◽  
Insulation Material ◽  
Construction Technology ◽  
Building Model ◽  
New Material ◽  
Fluent Software ◽  
Insulation Effect ◽  
Insulation Wall

Wall insulation material can save a lot of wall materials, improve the performance of the wall insulation, save resources, and reduce environmental pollution, which is a new material for interior and exterior wall insulation. In order to study the insulation performance of insulation material, according to the construction process of insulation material, we design the multi-layer insulation wall structure. In order to verify the insulation effect of energy saving, we use the FLUENT software to do numerical simulation on the wall insulation effect, and establish the heat transfer equation of the radiation and solid. We use the CAD software to design large building model, and use GAMBIT to carry on the grid division, finally get the 2D and 3D temperature distribution by means of numerical calculation. Through the finding of thermal efficiency and energy-saving efficiency, insulation wall can significantly improve the energy performance of buildings, which provides technical support to study the energy saving and environmental protection of building.

scholarly journals Full-scale Studies of Improving Energy Performance by Renovating Historic Swedish Timber Buildings with Hemp-lime

2019 ◽  
Vol 9 (12) ◽  
pp. 2484 ◽  
Author(s):  
Paulien Strandberg-de Bruijn ◽  
Anna Donarelli ◽  
Kristin Balksten
Keyword(s):  
Energy Saving ◽  
Material Properties ◽  
Energy Use ◽  
Building Design ◽  
Energy Performance ◽  
Full Scale ◽  
Space Heating ◽  
Original Material ◽  
Insulation Material ◽  
Thermal Transmittance

With an increased focus on reducing greenhouse gas emissions, energy saving is of great importance in all sectors of society. EU directives set targets for member states to reduce energy use in buildings. Energy saving in historic buildings requires special measures, balancing energy-saving renovations against the preservation of heritage values. Traditional constructions are open to vapor diffusion and generally work differently from modern constructions. Modern materials in traditional constructions sometimes damages the original material as they are usually diffusion-tight. The aim of this study was to investigate whether hemp-lime could be used as an insulation material to improve the energy efficiency of historic timber building envelopes with a rendered façade in Sweden. The objective was to determine the actual energy savings for space heating. An additional objective was to determine the actual thermal transmittance and to study thermal buffering through in-situ measurements in a full-scale wall renovated with hemp-lime. Two full-scale wall sections were constructed at the Energy and Building Design laboratory at Lund University: A traditional post-and-plank wall with a lime render (80 mm), and a post-and-plank wall with a hemp-lime render (90 mm). Energy use for space heating was monitored continuously over a period of one year. The wall with a hemp-lime render required 33% less energy for space heating than the traditional post-and-plank wall with a lime render. This was accomplished without changing the framework, appearance or material in the render and without drastically changing the hygric properties of the façade. From the gathered data, the thermal transmittance (U-values) for both walls was calculated using two different methods, one based on material properties and the other based on energy use data. For both walls, thermal transmittance based on actual energy use data during the heating period was lower than what was expected from their material properties. This indicates that more material properties than thermal conductivity and material thickness need to be taken into account when performing energy use calculations. With hemp-lime, a renovation can be accomplished without damaging the timber structure and wooden slats, and it can be done with local traditional materials and building methods with no difference in appearance to a traditional lime render. This allows for heritage values to be preserved, while also allowing the building to comply with modern standards and with increased thermal comfort and reduced energy use.

Status and Development Trend of Energy-Saving Wall Materials in Cold Areas

2010 ◽  
Vol 150-151 ◽  
pp. 630-633 ◽  
Author(s):  
Chun Lv
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Building Energy ◽  
Development Trend ◽  
Construction Technology ◽  
New Energy ◽  
Composite Wall ◽  
Wall Materials ◽  
Insulation Wall ◽  
The Development Trend

The primary factor in reducing building energy consumption is the wall energy, but thickening the walls simply and using traditional materials to reduce energy consumption has become unable to satisfy the development trend at the present stage. Energy-saving wall materials include organic wall insulation, inorganic wall insulation and composite wall insulation. According to the construction technology, insulation wall can be divided into internal insulation wall, sandwich insulation wall and external insulation wall etc.. Polyurethane foam and other new energy-saving materials are widely used, whicth will become the main energy-saving materials in the northern cold areas.

Insulation and Fireproof Performance of Several New Materials for Exterior Wall

2012 ◽  
Vol 174-177 ◽  
pp. 1290-1293
Author(s):  
Jia Wei Yao ◽  
Zhao Ming Hou ◽  
Yi Shu Yao
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Building Energy ◽  
Insulation Material ◽  
Exterior Wall ◽  
New Materials ◽  
Thermal Insulation Material ◽  
External Wall ◽  
Insulation Effect ◽  
Building Energy Saving

Exterior insulation is currently promoting a building energy-saving insulation technology. Compared with internal insulation, it is a reasonable technique and has its obvious advantages. However, in the insulation material, thermal insulation effect is better, fireproof performance is often worse. Through analyzing several external wall insulation materials’ insulation and fireproof performance, the article recommends a kind of external wall thermal insulation material with good insulation and fireproof performance, to meet the construction needs.

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.

scholarly journals Energy saving technology of wall insulation of harbor building based on energy cost analysis

2021 ◽  
Vol 25 (6 Part A) ◽  
pp. 4003-4010
Author(s):  
Xiangning Wang ◽  
Qing Lin ◽  
Jing Li
Keyword(s):  
Cost Analysis ◽  
Energy Saving ◽  
Thermal Insulation ◽  
Energy Cost ◽  
Moisture Transfer ◽  
Environmental Benefits ◽  
Wall Structure ◽  
Insulation Material ◽  
Long Time ◽  
Energy Saving Technology

Seaport buildings have been affected by marine moisture for a long time, but most of the wall thermal insulation studies have not considered the moisture transfer effect of the wall structure. Therefore, considering the moisture transfer function of the wall structure and the energy consumption of solar radiation, based on the energy cost analysis, the paper puts forward the research on the wall thermal insulation and energy-saving technology of the harbor building based on the energy cost analysis. Grey clustering is used to analyze the project cost and environmental benefits to determine the index weight. By using two kinds of thermal insulation materials and three kinds of insulation positions, the thermal performance and condensation characteristics of the wall are analyzed. It is found that increasing the thickness of the insulation layer is conducive to reducing the heat loss of the wall. Extruded polystyrene foam (XPS) thermal insulation material is better than expandable polystyrene board (EPS) insulation material, while EPS is more economical and energy-saving than XPS.

Crack and Condensation Problem Countermeasures of External Thermal Insulation Composite Wall

2013 ◽  
Vol 405-408 ◽  
pp. 1032-1035
Author(s):  
Ping Pang
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Control Problems ◽  
Quality Inspection ◽  
Construction Technology ◽  
Wall Stiffness ◽  
Project Construction ◽  
Composite Wall ◽  
Insulation Wall ◽  
Indoor And Outdoor

Through studying cracks and dewing problems of the energy-saving composite thermal insulation wall, we hope to attract enough attention to the construction technology and quality inspection, strengthen quality management and guarantee the engineering quality. This article has carried on the reason analysis and summarized the project construction commonly used methods from wall stiffness, indoor and outdoor temperature differences, materials and construction technology. The control problems of crack and dewing of energy-saving composite thermal insulation wall has more value in practice.

scholarly journals A Fundamental Study on the Development of New Energy Performance Index in Office Buildings

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2064
Author(s):  
Jin-Hee Kim ◽  
Seong-Koo Son ◽  
Gyeong-Seok Choi ◽  
Young-Tag Kim ◽  
Sung-Bum Kim ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Requirement ◽  
Energy Performance ◽  
Office Buildings ◽  
Light Transmittance ◽  
Wall Structure ◽  
Fundamental Study ◽  
Future Studies ◽  
U Value ◽  
The Impact

Recently, there have been significant concerns regarding excessive energy use in office buildings with a large window-to-wall ratio (WWR) because of the curtain wall structure. However, prior research has confirmed that the impact of the window area on energy consumption varies depending on building size. A newly proposed window-to-floor ratio (WFR) correlates better with energy consumption in the building. In this paper, we derived the correlation by analyzing a simulation using EnergyPlus, and the results are as follows. In the case of small buildings, the results of this study showed that the WWR and energy requirement increase proportionally, and the smaller the size is, the higher the energy sensitivity will be. However, results also confirmed that this correlation was not established for buildings approximately 3600 m2 or larger. Nevertheless, from analyzing the correlation between the WFR and the energy requirements, it could be deduced that energy required increased proportionally when the WFR was 0.1 or higher. On the other hand, the correlation between WWR, U-value, solar heat gain coefficient (SHGC), and material property values of windows had little effect on energy when the WWR was 20%, and the highest effect was seen at a WWR of 100%. Further, with an SHGC below 0.3, the energy requirement decreased with an increasing WWR, regardless of U-value. In addition, we confirmed the need for in-depth research on the impact of the windows’ U-value, SHGC, and WWR, and this will be verified through future studies. In future studies on window performance, U-value, SHGC, visible light transmittance (VLT), wall U-value as sensitivity variables, and correlation between WFR and building size will be examined.

Research on Application of New Energy-Saving Building Materials

2012 ◽  
Vol 193-194 ◽  
pp. 406-410 ◽  
Author(s):  
Ai Fang Liu ◽  
Shu Rong Guo
Keyword(s):  
Energy Saving ◽  
Building Material ◽  
Building Materials ◽  
Development Trend ◽  
Scientific Data ◽  
Wall Material ◽  
Insulation Material ◽  
Essential Question ◽  
New Energy ◽  
Research On Application

Currently, energy saving and consumption reduction has been a crucial task the domestic people are facing with. It has been considered as essential question in the field of building materials to research and develop a new energy saving building material. In this paper, we classified new wall material and thermal insulation material, analyzed the performance, feature and application of such materials, selected typical foam concrete and slurry insulation material and analyzed their thermal properties and technology parameters and so on, to present the development trend and direction of energy saving building material, to provide valid scientific data to relevant building energy saving management units, design units and construction units, to play a positive guiding role in improving the application level of new energy saving building material and promoting new energy saving building material of high quality.

Energy Saving Technology for Doors and Windows of the Building

2014 ◽  
Vol 1056 ◽  
pp. 128-130
Author(s):  
Fu Yun Yang
Keyword(s):  
Energy Saving ◽  
Indoor Environment ◽  
Energy Performance ◽  
Building Envelope ◽  
Energy Performance Of Buildings ◽  
Summer Heat ◽  
Energy Saving Technology ◽  
Heat Preservation

Doors and windows of the building is an important part of the building envelope. AS the transparent and open envelope of the building, doors and windowsare the weakest part in the winter and summer heat preservation. It directly affects the energy performance of buildings. Therefore, do a good job of building doors and windows energy saving is an important way to optimize the indoor environment and realize energy saving.

scholarly journals Performance Analyses of Temporary Membrane Structures: Energy Saving and CO2 Reduction through Dynamic Simulations of Textile Envelopes

2018 ◽  
Vol 10 (7) ◽  
pp. 2548 ◽  
Author(s):  
Mariangela De Vita ◽  
Paolo Beccarelli ◽  
Eleonora Laurini ◽  
Pierluigi De Berardinis
Keyword(s):  
Energy Saving ◽  
Environmental Sustainability ◽  
Co2 Reduction ◽  
Energy Performance ◽  
Climatic Conditions ◽  
Point Of View ◽  
Thermal Mass ◽  
Membrane Structures ◽  
Dynamic Simulations ◽  
Carbon Reduction

The aim of this research, carried out in collaboration with Maco Technology Inc., was to analyse the energy performance of temporary textile structures that are often used to host itinerant events. This paper illustrates the dynamic simulations carried on the Ducati Pavilion, designed by Maco Technology, which hosted Ducati staff during the different stages of the Superbike World Championship. Specific aspects relating to the structural/constructive system of the project were also analysed. The theme of energy saving and carbon reduction is of great importance in temporary and itinerant structures and environmental sustainability in relation to the materials used, storage, re-use, mode of transport and ability to respond efficiently to the climatic conditions of the installation sites is an important aspect. The Ducati Pavilion was modelled and analysed from an energy point of view using Design Builder software. Ways of improving performance were analysed under summer conditions. The paper focuses on the importance of optimizing the performance of textile envelopes: the methodology proposed allows visible savings in terms of energy consumption and achieves good levels of environmental comfort in temporary buildings with low thermal mass structure.

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