Influence of Reflective Insulation Coating on Heat Transfer Characteristics of Composite Thermal Insulation Wall

2014 ◽  
Vol 633-634 ◽  
pp. 909-912 ◽  
Author(s):  
Tu Hua Guan ◽  
Cheng Qun Wu ◽  
Hong Mei Liu ◽  
Yang Shen ◽  
Yuan Bin Xu
Keyword(s):  
Thermal Insulation ◽  
Yangtze River ◽  
Heat Insulation ◽  
Fire Prevention ◽  
Heat Transfer Characteristics ◽  
Insulation Coating ◽  
Heat Preservation ◽  
Insulation Wall ◽  
Insulation Performance ◽  
Better Than

In the downstream of Yangtze River where there is abundant silt resources, perforated brick which fired by sludge, supplemented by reflective insulation coating to replace the widely used polystyrene insulation materials. It can achieve requirement of A-class fire prevention for heat preservation wall. The heat insulation performance of not painted thermal wall and composite thermal insulation wall painted by reflective insulation coating were compared. Data results show that heat insulation performance of the wall painted is much better than that of the not painted wall.

Performance of Thermal Insulation Reflective Composite Coatings

2011 ◽  
Vol 239-242 ◽  
pp. 1771-1774 ◽  
Author(s):  
Meng Qiu Jia ◽  
Yu Hong Jin
Keyword(s):  
Aqueous Solution ◽  
Thermal Insulation ◽  
Heat Insulation ◽  
Electrochemical Impedance ◽  
Composite Coatings ◽  
Insulation Property ◽  
Corrosion Properties ◽  
Rutile Titanium Dioxide ◽  
Insulation Performance ◽  
Good Heat

Reflective topcoat and thermal insulation mid-coat composite coatings system was used in this work. The effect of the content of the hollow glass micro-beads and rutile titanium dioxide on the heat insulation performance and the reflectivity of the coatings were investigated, respectively. The heat insulation performance and the reflectivity of the thermal insulation reflective composite coatings (TIRCCs) were characterized by self-prepared experimental device. The results showed the good heat insulation property, and the insulated temperature reached 12-15°C, and the reflectivity was up to 95%. The anti-corrosion and anti-penetration of the TIRCCs were studied by electrochemical impedance spectroscopy (EIS) technique. The results showed that the resistance of the TIRCCs still be maintained at 108Ω·cm2 after 30 days in the 3.5% aqueous solution of sodium chloride. So The TIRCCs can be used on the surface of the steal structure for decreasing the temperature and enhancing anti-corrosion properties.

The Preparation of Fluorocarbon Thermal Insulation Coating with Different Fillers

2015 ◽  
Vol 1101 ◽  
pp. 36-39 ◽  
Author(s):  
Xiu Fang Ye ◽  
Dong Chu Chen ◽  
Meng Lei Chang ◽  
Qi Hua Liang ◽  
Qi Peng Lu
Keyword(s):  
Thermal Insulation ◽  
Tin Oxide ◽  
Polyvinylidene Fluoride ◽  
Hollow Glass Microsphere ◽  
Test Results ◽  
Hollow Glass ◽  
Insulation Coating ◽  
Insulation Performance ◽  
Functional Fillers ◽  
Closed Pore

According to the mechanism of thermal insulation, closed pore perlite, hollow glass microsphere and nanoantimony tin oxide (ATO) powder three different kinds of functional fillers were adopted respectively to prepare obstructive, reflective and radiative thermal insulation coating base on polyvinylidene fluoride emulsion, and how the category and content of functional fillers effect the thermal insulation performance of the fluorocarbon thermal insulation coating (FTIC) was investigate. The test results showed that, all the three functional fillers has an significant effect on the thermal insulation performance of FTIC.

Thermal Insulation Property of Newspaper Membrane Encased Soil-Based Aerated Lightweight Concrete Panels

2011 ◽  
Vol 261-263 ◽  
pp. 783-787 ◽  
Author(s):  
Soon Ching Ng ◽  
Kaw Sai Low ◽  
Ngee Heng Tioh
Keyword(s):  
Temperature Gradient ◽  
Thermal Insulation ◽  
Lightweight Concrete ◽  
Clayey Soil ◽  
Heat Insulation ◽  
Control Panel ◽  
Insulation Property ◽  
Concrete Panels ◽  
Thermal Insulation Property ◽  
Insulation Performance

Roof and wall are known to be responsible for heat entering into a building and should therefore be thermally insulated in order to lessen energy consumption required for air-conditioning. In this study, four soil-based aerated lightweight concrete (ALC) panels each measures 750 mm (length) x 750 mm (breadth) x 70 mm (thick) with different aerial intensity of newspaper membrane encased were produced and tested on their thermal insulation property. For environmental friendly and economy reasons, clayey soil was used in place of sand to produce the ALC panels and they were tested in the Thermal Laboratory for twenty hours. Temperature gradient was computed based on the surface temperature measured during the test. The results obtained indicated that newspaper membrane encased soil-based ALC panels have superior heat insulation performance compared to control panel in terms of temperature gradient. It is found that the temperature gradient increased from 1.92 °C/cm to 2.08 °C/cm or 8.3% higher than control panel with just merely 0.05 g/cm2 of newspaper membrane encased.

Study on Water-Based Highly Reflectivity Insulation Coating

2011 ◽  
Vol 331 ◽  
pp. 703-707
Author(s):  
Ya Fen Luo ◽  
Zhao Qun Du ◽  
Wei Dong Yu
Keyword(s):  
Thermal Insulation ◽  
Factors Affecting ◽  
Solar Heat ◽  
Uv Reflectance ◽  
Coating Morphology ◽  
Insulation Coating ◽  
Average Reflectance ◽  
Coating Method ◽  
Binder Ratio ◽  
Insulation Performance

The paper researched a solar heat-reflective insulation coating method, investigating coating morphology and other factors affecting the performance of thermal insulation, such as membrane material and the type of insulation pigments as well as pigment to binder ratio. It used solar heat reflectivity and infrared spectroscopy to characterize the coating thermal insulation performance. The results showed that with the silane coupling agent for the bonded dispersant, the flake aluminum powder and titanium dioxide for the thermal insulation filler, together with water and additives, the average reflectance of visible light is 56%, the UV reflectance is 53%, the infrared reflectivity is 58%.

scholarly journals Recycled Cellulose Aerogels from Paper Waste for a Heat Insulation Design of Canteen Bottles

Fluids ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 174 ◽  
Author(s):  
Lim Wen Zhen ◽  
Quoc B. Thai ◽  
Thanh X. Nguyen ◽  
Duyen K. Le ◽  
Jason Kai Wei Lee ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Heat Insulation ◽  
Ice Slurry ◽  
Insulating Layer ◽  
Paper Waste ◽  
Cellulose Aerogel ◽  
Mercury Thermometer ◽  
Temperature Rate ◽  
First Time ◽  
Insulation Performance

Exercising in a tropical climate with constant high temperatures and high humidity increases the risk of heatstroke for active people who frequently train outdoors. For these active persons, a cooling source of water nearby can be essential, and this is usually carried in canteen bottles. However, commercially available water canteen bottles have limited thermal insulation capability to keep the liquid content cooled for the required period. This work proposed an engineering solution to enhance the heat insulation performance of water canteen bottles, using recycled cellulose aerogels made from paper waste for the first time as an insulating layer. Recycled cellulose aerogels wrapped around the water canteen bottle provides excellent thermal insulation performance, while not adding significant weight to the bottle. The temperature of the ice slurry in the canteen bottle was measured periodically over four hours with a mercury thermometer. The effects of the static and dynamic conditions on the temperature rate were also quantified. A 1.5 cm thickness of 1.0 wt.% recycled cellulose aerogel wrapped around the canteen bottle can provide an excellent thermal insulation performance with the lowest rise in temperature, achieving a low final temperature of the ice slurry content of 3.5 °C after 4 h. This result is much better than that provided by available commercial bottles under the same conditions.

Preparation of Aerogel-Modified Expanded Perlite and its Application in Heat Insulation Coating

2013 ◽  
Vol 668 ◽  
pp. 360-364 ◽  
Author(s):  
Kang Peng ◽  
Hua Ming Yang
Keyword(s):  
Energy Conservation ◽  
Thermal Insulation ◽  
Heat Insulation ◽  
Building Energy ◽  
Nanoporous Structure ◽  
Insulation Material ◽  
Impregnation Method ◽  
Expanded Perlite ◽  
Building Energy Conservation ◽  
Insulation Coating

Building insulation is an important part of building energy conservation. The heat insulation coating preapred from modified expanded perlite has been a potential building thermal insulation material. In this paper, aerogel was filled into the pores of expanded perlite by vacuum impregnation method to produce aerogel-modified expanded perlite at ambient pressure. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and N2 adsorption–desorption techniques. The results revealed that aerogel could be well filled into the pores of expanded perlite, and the resultant aerogel-modified expanded perlite possessed nanoporous structure with higher specific surface area of 196 m2·g-1, and low thermal conductivity of 0.063 W·m-1·K-1 less than that of expanded perlite by 13.3%. Heat insulation coatings prepared from aerogel-modified expanded perlite had good thermal insulation effect, indicating that the product showed potential aplication in the field of building energy conservation.

scholarly journals Microstructure and Thermal Insulation Property of Silica Composite Aerogel

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 993 ◽  
Author(s):  
Lei Shang ◽  
Yang Lyu ◽  
Wenbo Han
Keyword(s):  
Thermal Insulation ◽  
Silica Aerogel ◽  
Infrared Radiation ◽  
Performance Test ◽  
Heat Insulation ◽  
Insulation Material ◽  
Cold Surface ◽  
Composite Aerogel ◽  
Aerogel Composite ◽  
Insulation Performance

Tetraethyl orthosilicate was selected as a matrix of heat insulating materials among three silanes, and an anti-infrared radiation fiber was chosen as a reinforcement for silica aerogel insulation composite. The silica aerogel was combined well and evenly distributed in the anti-infrared radiation fiber. The heat insulation effect was improved with the increase in thickness of the aerogel insulation material, as determined by the self-made aerospace insulation material insulation performance test equipment. The 15 mm and 30 mm thick thermal insulation material heated at 250 °C for 3 h, the temperatures at the cold surface were about 80 °C and 60 °C, respectively, and the temperatures at 150 mm above the cold surface were less than 60 °C and 50 °C, respectively. The silica aerogel composites with various thicknesses showed good thermal insulation stability. The silica insulation composite with a thickness of 15 mm exhibited good heat insulation performance, meets the thermal insulation requirements of general equipment compartments under low-temperature and long-term environmental conditions. The thermal conductivity of prepared silica aerogel composite was 0.0191 W·m−1·k−1 at room temperature and 0.0489 W·m−1·k−1 at 500 °C.

scholarly journals Komparasi Performa Insulasi Termal Antara Dinding Batu Bata dan Batu Bata dengan Penambahan Insulasi Alang-Alang

Jurnal Teknik ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 23-34
Author(s):  
Niniek Pratiwi ◽  
Baharuddin Hamzah ◽  
Rosady Mulyadi
Keyword(s):  
Thermal Insulation ◽  
Temperature Difference ◽  
Insulation Material ◽  
Brick Wall ◽  
Average Temperature ◽  
Human Thermal Comfort ◽  
The Past ◽  
Simulation Based ◽  
Insulation Performance ◽  
Better Than

Buildings consume about 40% of the world's energy, beginning from the process of making the building itself to how the building could meet human thermal comfort needs. In the past, reeds were often used in traditional buildings, but unfortunately these days the practice is being abandoned. Several studies have shown that weeds can reduce building temperatures. However, these studies research has not examined how reeds are used as insulation material along with bricks so the purpose of this study is to compare the thermal insulation performance between plain brick and brick wall with the addition of reed insulation. The method used in this research is to use Ecotect simulation. Based on the results of simulations carried out it is known that model 1, namely the plain brick wall, has an outside-inside temperature difference of -1.32917 ° C. This means that the average temperature inside is hotter than the outside temperature by 1.32917 ° C. Meanwhile in model 2, the brick wall with the addition of reeds insulation has an outside-inside temperature difference of 0.445833 ° C. This means that the average temperature inside is cooler than the outside temperature by 0.445833 ° C. Therefore, it can be concluded that reeds could be used as thermal insulation material because it could store heat better than the material in Model 1, which is a plain brick wall.

Research on the Key Technology of Vegetation Roofing Energy Saving

2013 ◽  
Vol 368-370 ◽  
pp. 375-379
Author(s):  
Xue Fang Bao
Keyword(s):  
Energy Saving ◽  
Heat Insulation ◽  
Key Technology ◽  
Technical Requirements ◽  
Heat Preservation ◽  
Ecological Landscape ◽  
Insulation Performance ◽  
Method Analysis

This paper focuses on the key technical requirements of roof vegetation, using contrastive method analysis of vegetation roofing heat preservation, heat insulation performance advantages and energy saving and ecological landscape effect, to study the climate vegetation roofing greening plant key technology and application.

Sign in / Sign up

Export Citation Format

Share Document