Fuzzy Matter-Element Evaluation of Wall Thermal Insulation Materials

2012 ◽  
Vol 174-177 ◽  
pp. 1133-1136
Author(s):  
Jia You Liu

Wall thermal insulation is one of the most effective ways for building energy-saving. Selecting suitable thermal insulation materials is important to energy-saving, economy, safety and durability, etc. The principle of fuzzy matter-element method is introduced as well as entropy method. The methods are use to evaluation wall thermal insulation materials to determine the most appropriate material. The performance indicators of wall thermal insulation materials are analyzed. An application case is studied using the methods, and Extruded Polystyrene (XPS) is selected to be the most suitable material.

2014 ◽  
Vol 909 ◽  
pp. 450-454
Author(s):  
Hung Ren Hsieh ◽  
Chih Hao Lee

This research aims to study the design and thermal insulation performance of detached houses in Taiwan through the analysis of 55 detached houses. The research shows that 85% of detached houses are built using reinforced concrete (RC) construction, and the rest mostly using lightweight steel framing (LSF) construction. The thermal insulation performance of envelope construction of RC housing is poorer than LSF housing. More than 80% of the case study sample could not meet the roof thermal insulation requirements of Taiwans latest regulations on housing building energy saving. The most commonly used thermal insulation materials are polystyrene board, glass wool and rock wool, which are nearly all applied in LSF housings for the internal thermal insulation layer or the structural body layer of envelope construction. Polystyrene board has the widest range of use, including both internal and external thermal insulation layers of the envelope construction. If improving thermal insulation performance of the common envelope construction concluded from case study samples to meet Taiwans latest regulations on housing building energy saving, of the savings on air-conditioning energy during the summer could potentially be 11.5%. However, above improvement project is not economically beneficial due to the too long payback period.


2012 ◽  
Vol 594-597 ◽  
pp. 2197-2200 ◽  
Author(s):  
Xian Li Wang ◽  
Lin Wang

Exterior thermal insulation technology has many advantages such as light weight, good thermal insulation effect, and so on. So it is widely used in energy-saving building and existing building energy-saving renovation project all over the word. This article describes material selection, product performance and process characteristics of a new type composite phenolic wallboard which has double functions of thermal insulation and fireproofing.


2013 ◽  
Vol 676 ◽  
pp. 22-26 ◽  
Author(s):  
Jian Guo Yang ◽  
Gang Wang ◽  
Ke Wei Ding

This paper research applied to using energy-saving insulation in hot summer and warm winter area of sandwich wall panels, study on thermal insulation thermal insulation property of composite wall panel through 2 sets of thermal performance test, and the test results for comparative analysis with finite element analysis results. The analysis shows that the wallboard is not only good insulation properties, but also to meet the requirements prescribed by the state building energy-saving insulation and hot summer Cold Winter areas of building energy-saving insulation requirements.


2014 ◽  
Vol 608-609 ◽  
pp. 1061-1065
Author(s):  
Lei Cao ◽  
Xue Nan Mu

In recent years, with the continuous development of society, people's awareness of energy conservation has also been enhanced. Among them, building energy consumption occupies a very large proportion in all their energy consumption. Therefore, people have taken various measures to reduce the energy consumption of building its own. External wall thermal insulation is a new building energy saving technology. Through verification, application of external wall insulation technology in building energy saving greatly reduces the energy consumption of buildings. This paper mainly introduced on the city building external wall thermal insulation technology and some related measures.


2012 ◽  
Vol 472-475 ◽  
pp. 469-472 ◽  
Author(s):  
Bing Nan Liu ◽  
Qiong He

With the improvement of people's living standard, the building energy consumption is increasing day by day. In order to reduce energy consumption, we should develop energy-saving building and analyze building energy saving technology. This article mainly introduces three kinds of energy saving technology which include the external wall thermal insulation technology, doors and Windows energy saving technology and roof insulation technology.


2012 ◽  
Vol 174-177 ◽  
pp. 1290-1293
Author(s):  
Jia Wei Yao ◽  
Zhao Ming Hou ◽  
Yi Shu Yao

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.


2014 ◽  
Vol 641-642 ◽  
pp. 1037-1039
Author(s):  
Zhi Neng Tong

This paper expounds the importance of wall insulation energy-saving wall insulation materials, introduces the characteristics and process practice requirements. Bring forth the new through the old to accelerate energy-saving technical insulation wall material, plays a positive role in promoting to create a more comfortable living environment, provide the beneficial reference for the wall heat preservation and energy saving. Building energy saving is the main content of environmental protection and energy conservation, is an important part of sustainable development. Residential building energy-saving work unceasingly thorough, continuously improve the energy efficiency standards, the development of many new energy-saving technology, vigorously promote the use of residential buildings. But the current level of building energy saving, but also far lower than developed countries. So the building energy conservation is an important task of building industry. In the construction of the external retaining structure, the heat loss, the supporting structure of the external wall and a big share. Development and reform of building wall and wall energy saving technology is the main content of building energy-saving technology, the development of external insulation materials and energy-saving technology is the main way to achieve energy-saving building. Thermal insulation external wall energy saving is mainly divided into exterior insulation and exterior wall insulation two categories.


Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 442
Author(s):  
Xiaoyue Zhu ◽  
Bo Gao ◽  
Xudong Yang ◽  
Zhong Yu ◽  
Ji Ni

In China, a surging urbanization highlights the significance of building energy conservation. However, most building energy-saving schemes are designed solely in compliance with prescriptive codes and lack consideration of the local situations, resulting in an unsatisfactory effect and a waste of funds. Moreover, the actual effect of the design has yet to be thoroughly verified through field tests. In this study, a method of modifying conventional building energy-saving design based on research into the local climate and residents’ living habits was proposed, and residential buildings in Panzhihua, China were selected for trial. Further, the modification scheme was implemented in an actual project with its effect verified by field tests. Research grasps the precise climate features of Panzhihua, which was previously not provided, and concludes that Panzhihua is a hot summer and warm winter zone. Accordingly, the original internal insulation was canceled, and the shading performance of the windows was strengthened instead. Test results suggest that the consequent change of SET* does not exceed 0.5 °C, whereas variations in the energy consumption depend on the room orientation. For rooms receiving less solar radiation, the average energy consumption increased by approximately 20%, whereas for rooms with a severe western exposure, the average energy consumption decreased by approximately 11%. On the other hand, the cost savings of removing the insulation layer are estimated at 177 million RMB (1 USD ≈ 6.5 RMB) per year. In conclusion, the research-based modification method proposed in this study can be an effective tool for improving building energy efficiency adapted to local conditions.


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