Thermal Insulation Materials in Architecture: A Comparative Test Study with Aerogel and Rock Wool

Insulation Materials ◽

Test Study ◽

History Of ◽

The Difference ◽

Materials Used ◽

Rock Wool

Abstract Thermal insulation has great potential to reduce energy consumption in buildings. This study aims to provide a general perspective by addressing the thermal insulation materials used throughout the history of the construction industry and to understand the current situation with developing technology. The literature review was used as a method in the study. The insulation values of current thermal insulation products were investigated and compared. An energy loss and gain analysis were carried out on the Revit model to understand the difference between the widely used rock wool and a nanotechnology product, aerogel-added thermal insulation material. The results of the study show that thermal insulation materials produced with nanotechnology examined have lower thermal conductivity coefficients compared to other thermal insulation materials. According to the analysis carried out on the Revit model, the thermal insulation material with aerogel provides 8% savings in cooling loads compared to the use of rock wool. Developing competitive and sustainable materials is of the utmost importance. The literature review suggests that new composite insulators can be produced by combining suitable materials.

Effect of Operating Temperatures on Thermal Conductivity of Polystyrene Insulation Material: Impact on Envelope-Induced Cooling Load

10.4028/www.scientific.net/amm.564.315 ◽

2014 ◽

Vol 564 ◽

pp. 315-320 ◽

Cited By ~ 8

Author(s):

Maatouk Khoukhi ◽

Mahmoud Tahat

Keyword(s):

Thermal Conductivity ◽

Thermal Insulation ◽

Energy Performance ◽

Building Envelope ◽

Insulation Material ◽

Cooling Load ◽

Insulation Materials ◽

Energy Performance Of Buildings ◽

The Impact

The impact of the thermal conductivity (k-value) change of polystyrene insulation material in building envelope due to changes in temperature on the thermal and energy performance of a typical residential building under hot climate is investigated. Indeed, the thermal and energy performance of buildings depends on the thermal characteristics of the building envelope, and particularly on the thermal resistance of the insulation material used. The thermal insulation material which is determined by its thermal conductivity, which describes the ability of heat to flow cross the material in presence of a gradient of temperature, is the main key to assess the performance of the thermal insulation material. When performing the energy analysis or calculating the cooling load for buildings, we use published values of thermal conductivity of insulation materials, which are normally evaluated at 24°C according to the ASTM standards. In reality, thermal insulation in building is exposed to significant and continuous temperature variations, due essentially to the change of outdoor air temperature and solar radiation. Many types of insulation materials are produced and used in Oman, but not enough information is available to evaluate their performance under the prevailing climatic condition. The main objective of this study is to investigate the relationship between the temperature and thermal conductivity of various densities of polystyrene, which is widely used as building insulation material in Oman. Moreover, the impact of thermal conductivity variation with temperature on the envelope-induced cooling load for a simple building model is discussed. This work will serve as a platform to investigate the effect of the operating temperature on thermal conductivity of other building material insulations, and leads to more accurate assessment of the thermal and energy performance of buildings in Oman.

A Compressive Peak Strength Model for CFRP-Confined Thermal Insulation Materials under Elevated Temperature

Materials ◽

10.3390/ma13010026 ◽

2019 ◽

Vol 13 (1) ◽

pp. 26 ◽

Cited By ~ 1

Author(s):

Yeou-Fong Li ◽

Wai-Keong Sio ◽

Ying-Kuan Tsai

Keyword(s):

Compressive Strength ◽

Elevated Temperature ◽

Thermal Insulation ◽

Thermal Softening ◽

Peak Strength ◽

Insulation Material ◽

Strength Model ◽

Test Results ◽

Insulation Materials

In this paper, a compressive peak strength model for CFRP-confined thermal insulation materials under elevated temperature was proposed. The thermal insulation material was made by Portland cement with different portions of perlite. The compressive strengths of four different perlite ratios in weight, such as 0%, 10%, 20%, and 30% of thermal insulation materials, confined by one-layer, two-layer, and three-layer carbon fiber-reinforced polymer (CFRP) composite materials, were obtained. The test results indicated that the specimen’s compressive strength decreased with an increase in the amount of perlite replacement and increased with an increase in the number of CFRP wrapping layers. Based on the test results, a theoretical compressive peak strength model with some parameters was proposed. In the meantime, the compressive strengths of the above four different perlite ratios of thermal insulation materials under elevated temperature, such as ambient temperature, 100 °C, 150 °C, 200 °C, 250 °C, and 300 °C, were obtained. For compression tests of specimens with a fixed amount of perlite, the test results indicated that the specimen’s compressive strength decreased with an increase in temperature, highlighting a thermal softening phenomenon. Based on the test results, a compressive peak strength model with a thermal softening parameter was proposed to predict the peak strength under elevated temperature. Finally, a compressive peak strength model for thermal insulation material with CFRP confinement under different elevated temperature was derived, and it achieved acceptable results in comparison to the experimental results.

Analysis on New Functional Material - Applied Research of Clothing Based on New Thermal Insulation Materials

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.580.489 ◽

2012 ◽

Vol 580 ◽

pp. 489-492

Author(s):

Qin Fei Sun ◽

Xue Wang

Keyword(s):

Thermal Insulation ◽

Applied Research ◽

Science And Technology ◽

Insulation Material ◽

Functional Material ◽

Insulation Materials

The analysis on thermal insulation material of new functional material presented its application on clothing, clarified its superior characteristic on clothing is more and more popular with the development of science and technology, promoted people developing new functional material.

Study on Polyurethane Foam Insulation Materials

10.4028/www.scientific.net/amm.563.41 ◽

2014 ◽

Vol 563 ◽

pp. 41-47

Author(s):

Zhang Lu ◽

Dan Xia ◽

Zhen An

Keyword(s):

Mechanical Properties ◽

Polyurethane Foam ◽

Thermal Insulation ◽

Nucleating Agent ◽

Insulation Material ◽

Foam Material ◽

Insulation Materials ◽

Best Value ◽

Stannous Octoate

The foaming reaction so that all water-gel reaction and foaming reaction to reach equilibrium, the excellent thermal insulation material was prepared by the regulation of the catalyst, a nucleating agent and an isocyanate. By experiment we know that the amount of stannous octoate catalyst 6%, 4% of the amount of nucleating agent CaCO3, and the case of 100% of the amount of isocyanate, the density of the foam material and the mechanical properties of the insulation material to achieve the best value.

The Research on Seismic Performance of the Insulation Material on the External Wall of a Building

10.4028/www.scientific.net/amm.395-396.469 ◽

2013 ◽

Vol 395-396 ◽

pp. 469-472

Author(s):

Zu Xu Zou ◽

Song Ping Mao

Keyword(s):

Energy Efficiency ◽

Seismic Performance ◽

Thermal Insulation ◽

Building Energy ◽

Building Envelope ◽

Building Energy Efficiency ◽

Insulation Material ◽

External Wall ◽

Insulation Materials

It is a problem on building energy efficiency of how to improve the heat insulation performance of building envelope, to make the building outer wall has good heat preservation effect, and to keep the necessary seismic performance. Exterior wall thermal insulation engineering, which is a key part on building energy conservation engineering construction quality acceptance and on building energy efficiency design, is an important part in building energy efficiency projects. Therefore, it is necessary to study the seismic performance based on the fact that the building is building energy efficiency. By the research on exterior insulation materials, the analysis on the performance of external thermal insulation materials currently used, and the research on the factors affecting the seismic performance of external thermal insulation material, It provides a guidance on evaluating the external wall thermal insulation material performance and quality, ensuring the quality of external thermal insulation material, and it is expected to achieve the effect of building energy efficiency.

Study on Water Absorption and Thermal Conductivity of Tunnel Insulation Materials in a Cold Region under Freeze-Thaw Conditions

Advances in Materials Science and Engineering ◽

10.1155/2020/5301968 ◽

2020 ◽

Vol 2020 ◽

pp. 1-11

Author(s):

Youyun Li ◽

Huan Wang ◽

Li Yang ◽

Shiqiang Su

Keyword(s):

Thermal Conductivity ◽

Water Absorption ◽

Thermal Insulation ◽

Insulation Material ◽

Cold Region ◽

Freeze Thaw ◽

Insulation Materials ◽

Thaw Cycle ◽

Freeze Thaw Cycle

A thermal insulation layer is often deposited on the lining structure of tunnels in cold regions to solve the problem of frost damage. When the air humidity in the tunnel becomes excessively high, the thermal insulation material tends to absorb water, leading to significant changes in thermal conductivity. Moreover, the temperature differences between the day and night cycles have been observed to be significant in portal sections of cold region tunnels, which facilitate the freeze-thaw cycle and, consequently, deteriorate the performance of the thermal insulation material. Therefore, the purpose of this study is to determine the changes in the water absorption, thermal conductivity, and microstructure of polyurethane and polyphenolic insulation boards under freeze-thaw conditions. To this end, an indoor water absorption test was conducted for both the insulation boards till they were saturated, which then underwent a freeze-thaw cycle test. It was determined that the water absorption and thermal conductivities of these boards increased linearly with the number of freeze-thaw cycles. In order to explore the change of thermal conductivity of thermal insulation materials after moisture absorption, this study provides insights into the relationship between the thermal conductivities and water contents of tunnel insulation materials under normal and freezing temperatures.

Comparative Study on Life Cycle Assessment for Typical Building Thermal Insulation Materials in China

Materials Science Forum ◽

10.4028/www.scientific.net/msf.787.176 ◽

2014 ◽

Vol 787 ◽

pp. 176-183 ◽

Cited By ~ 3

Author(s):

Li Ping Ma ◽

Quan Jiang ◽

Ping Zhao ◽

Chun Zhi Zhao

Keyword(s):

Life Cycle Assessment ◽

Life Cycle ◽

Environmental Impact ◽

Energy Saving ◽

Thermal Insulation ◽

Heat Conductivity ◽

Insulation Material ◽

Insulation Materials ◽

Volume Weight ◽

Rock Wool

Studies on life cycle assessment of three typical building thermal insulation materials including polystyrene board, rock wool board, and rigid foam polyurethane board related to building energy-saving were carried out. Based on the method of life cycle assessment, "1 kg of thermal insulation material" is first selected as one of the functional units in this study based on the production field data statistics and general market transaction rules of the thermal insulation materials, and life cycle resource consumption, energy consumption and exhaust emission of the three products in China are deeply surveyed and analyzed. The abiotic depletion potential (ADP), primary energy demand (PED), and global warming potential (GWP) for production of 1 kg of the three thermal insulation materials are calculated and analyzed. Furthermore, the functional unit is extended to be "1 m2 of thermal insulation material meeting the same energy-saving requirements" so as to compare the difference of environmental friendliness among the three building thermal insulation materials, and the corresponding life cycle environmental impact is also calculated and analyzed. As shown by the results, where calculated in unit mass, the order of production life cycle environmental impact significances of the thermal insulation materials is as follows: rock wool board < polyurethane board < polystyrene board. However, where calculated in unit area (m2) meeting the 65% energy-saving requirements, the production life cycle environmental impact significances of the three kinds of insulation materials are sorted as polystyrene board < polyurethane board < rock wool board, whatever the region is, which is opposite with that of the results for the insulation materials in unit mass (kg). The reason for such difference is that they have different volume weights and heat conductivity coefficients. The polystyrene board has a smaller volume weight and the smallest heat conductivity coefficient, whereas the rock wool board has the highest volume weight and heat conductivity coefficient. Source of the project fund. Subject "the Research and Application of Life Cycle Assessment Technology to the Building Materials for Building Engineering in Typical Regions" of the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period (No.: 2011BAJ04B06)

RESEARCH OF THE UNEVENNESS OF DISTRIBUTION OF THE STRENGTH PROPERTIES OF HIGH-TEMPERATURE THERMAL INSULATION MATERIALS

Proceedings of VIAM ◽

10.18577/2307-6046-2021-0-6-123-134 ◽

2021 ◽

pp. 123-134

Author(s):

V.G. Babashov ◽

◽

V.V. Butakov ◽

S.G. Kolyshev ◽

V.G. Maksimov ◽

...

Keyword(s):

High Temperature ◽

Comparative Study ◽

Thermal Insulation ◽

Solid Phase ◽

Strength Properties ◽

Insulation Material ◽

Protective Material ◽

Insulation Materials ◽

Fibrous Heat

The article considers the results of the study of the uneven distribution of the strength properties of a rigid high-temperature fibrous heat-protective material over the volume of the block. The article presents a comparative study of the uneven strength of two materials that differ in the method of introducing the binder. A conclusion is proposed about the mechanism of the occurrence of unevenness of the strength properties of a rigid fibrous thermal insulation material when a soluble binder is introduced into the material by the strait method. The absence of such a mechanism is shown for materials obtained using a solid-phase binder introduced into the molding hydraulic mass.

Heat radiation effects on insulating materials used in buildings

Pollack Periodica ◽

10.1556/606.2021.00377 ◽

2021 ◽

Author(s):

Flóra Hajdu ◽

Gabriella Lászlo ◽

Rajmund Kuti

Keyword(s):

Thermal Insulation ◽

Laboratory Tests ◽

Radiation Effects ◽

Expanded Polystyrene ◽

Heat Radiation ◽

Insulation Material ◽

Insulating Materials ◽

Insulation Materials ◽

Materials Used ◽

Construction Permit

AbstractIn recent years, in order to increase the energy efficiency of older buildings in Hungary, several tenders have supported the modernization of the thermal insulation. Various thermal insulation materials have been installed on walls, on slab and on floor. Unfortunately there are cases where thermal insulation materials are not installed in accordance with the construction permit or the manufacturer’s instructions, which poses a serious danger in case of a fire. During the research the effects of heat on the behavior of Expanded PolyStyrene, a thermal insulation material often used in Hungary is examined. Laboratory tests and computer simulations were carried out, which are presented in detail in this paper. The aim of the research is to contribute to increase the fire safety of buildings.

Review of Latest Developments in Microporous Aerogel for Building Applications

10.4028/www.scientific.net/amm.71-78.1967 ◽

2011 ◽

Vol 71-78 ◽

pp. 1967-1970 ◽

Cited By ~ 4

Author(s):

Yan Qi Cui ◽

Saffa Riffat

Keyword(s):

Thermal Comfort ◽

Thermal Insulation ◽

Energy Cost ◽

Air Conditioning ◽

Climatic Conditions ◽

Insulation Material ◽

The Novel ◽

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.