Research on Improvement of Thermal Insulation and Anti-Radiation Performances of Traditional Wooden Vernacular Dwellings of Tujia Minority in West Hunan

2014 ◽  
Vol 633-634 ◽  
pp. 936-940
Author(s):  
Li Zhe ◽  
Shi Lei
Keyword(s):  
Thermal Resistance ◽  
Thermal Insulation ◽  
Thermal Environment ◽  
Air Cavity ◽  
Before And After ◽  
Practical Engineering ◽  
Wall Construction ◽  
Technological Improvements

On the premise of protecting traditional styles of the dwellings, performances of thermal insulation and anti-radiation performances of traditional wooden dwellings of Tujia Minority in West Hunan and the interior thermal environment were improved through technological improvements in this paper. By improving wall construction technologies, thermal insulation boards and wooden planks were added to exterior walls of these dwellings. Furthermore, a two-layer air cavity formed and thus greatly improved thermal resistance of walls. Meanwhile, feasibility of improvement technologies proposed in this paper was validated by practical engineering tests and data detected before and after tests

scholarly journals How High-Loft Textile Thermal Insulation Properties Depend on Compressibility

2020 ◽  
Vol 20 (3) ◽  
pp. 338-343 ◽  
Author(s):  
Viera Glombikova ◽  
Petra Komarkova ◽  
Eva Hercikova ◽  
Antonin Havelka
Keyword(s):  
Thermal Resistance ◽  
Thermal Insulation ◽  
Compression Test ◽  
Compressive Loading ◽  
Poor Correlation ◽  
Compression Properties ◽  
Before And After ◽  
Thermal Insulations ◽  
Met Expectations

AbstractThis paper investigates the performance of high-loft thermal insulations in terms of their compression properties, recovery behavior and thermal resistance. The aforementioned properties belong to the basic producer requirements for winter functional sportswear, sleeping bags or blankets. Majority of thermal insulation producers declare high quality of their products claiming durability and insulation within beginning of their application. But, it is important to uncover how dynamic compressive loading (which simulates real condition of using) influences heat transport of tested filling for the whole lifetime period. Therefore, two groups of top synthetic thermal insulation materials were tested before and after compression loading. Subsequently, relaxation behavior of samples was determined by thickness recovery after the compression test. Furthermore, thermal resistance was measured before and after the compression test to find out the change in thermal effectivity of samples. In summary, these results have not met expectations and show a rather poor correlation between the rate of compression after dynamic loading and the drop of thermal resistance of tested fillings.

The Improvement for Thermal Insulation Properties of Traditional Residential Building Envelope in the North Region of Shanxi Province

2013 ◽  
Vol 689 ◽  
pp. 100-104
Author(s):  
Xiao Li Zhang ◽  
Qian Fei Shi
Keyword(s):  
Thermal Insulation ◽  
Thermal Environment ◽  
Residential Buildings ◽  
Residential Building ◽  
Field Investigation ◽  
Building Envelope ◽  
Shanxi Province ◽  
Coal Consumption ◽  
The North ◽  
Before And After

Taking the traditional residence of old Guangwu Village in Shuozhou City for example, this paper launched a special study on energy efficiency of the building envelope in traditional residential buildings in north region of Shanxi province on the basis of the field investigation. A method for improving the thermal insulation properties of traditional residential building envelope is introduced through the calculation of the indexes of building heat consumption and the coal consumption for heating. Comparing thermal performance and indoor thermal environment before and after the improvement of traditional residential building envelope, the simulation result will also be produced by Autodesk Ecotect Analysis, which offered the basic data and theoretical foundation for the sustainable development of traditional residential buildings in north region of Shanxi Province.

Study on the Thermal Performance of the Vernacular Dwellings in Wei-He Plain of Shaanxi Province

2012 ◽  
Vol 476-478 ◽  
pp. 1589-1595
Author(s):  
Yi Ping Zhu ◽  
Xi Liao ◽  
Shu Yun Wu ◽  
Jing Luo ◽  
Yuan Jiang ◽  
...  
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Thermal Performance ◽  
Thermal Environment ◽  
Local Area ◽  
Shaanxi Province ◽  
Indoor Thermal Environment ◽  
Questionnaire Surveys

Based on indoor thermal environment test and questionnaire surveys, the paper studies on thermal insulation capacity and indoor thermal environment of the vernacular dwellings in Wei-he Plain of Shaanxi Province, China, and analyses their heating methods and application status. Besides, the popularity of sustainable techniques in local area has been evaluated and summarized. Moreover, the paper discusses the present problems in local indoor thermal environment and energy-saving status.

scholarly journals Influence of Fabric Parameters on Thermal Comfort Performance of Double Layer Knitted Interlock Fabrics

2017 ◽  
Vol 17 (1) ◽  
pp. 20-26 ◽  
Author(s):  
Ali Afzal ◽  
Sheraz Ahmad ◽  
Abher Rasheed ◽  
Faheem Ahmad ◽  
Fatima Iftikhar ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Resistance ◽  
Thermal Comfort ◽  
Specific Heat ◽  
Double Layer ◽  
Thermal Insulation ◽  
Loop Length ◽  
Knitted Fabrics ◽  
Thermal Transmittance ◽  
Thermal Absorptivity

Abstract The aim of this study was to analyse the effects of various fabric parameters on the thermal resistance, thermal conductivity, thermal transmittance, thermal absorptivity and thermal insulation of polyester/cotton double layer knitted interlock fabrics. It was found that by increasing fibre content with higher specific heat increases the thermal insulation while decreases the thermal transmittance and absorptivity of the fabric. It was concluded that double layer knitted fabrics developed with higher specific heat fibres, coarser yarn linear densities, higher knitting loop length and fabric thickness could be adequately used for winter clothing purposes.

EFFECT OF THE THERMAL ENVIRONMENT ON COLD RESISTANCE AND GROWTH OF SMALL INFANTS AFTER THE FIRST WEEK OF LIFE

PEDIATRICS ◽  
1968 ◽  
Vol 41 (6) ◽  
pp. 1033-1046 ◽  
Author(s):  
Leonard Glass ◽  
William A. Silverman ◽  
John C. Sinclair
Keyword(s):  
Cold Resistance ◽  
Thermal State ◽  
Thermal Environment ◽  
Test Environment ◽  
Deep Body Temperature ◽  
Abdominal Skin ◽  
Thermal Environments ◽  
Rate Of Increase ◽  
Before And After ◽  
Deep Body

Twelve matched pairs of small (1,001-2,000 gm birth weight) asymptomatic neonates, age 1 week, were placed in either of two frequently recommended thermal environments ("standard": abdominal skin controlled at 35.0°C to approximate the thermal state commonly realized in nurseries for premature infants; "warm": abdominal skin controlled at 36.5°C to approximate thermoneutral condition). Both groups were fed 120 calories/kg/day. Before and after 2 weeks in the test environment, the infants were placed in a simulated room environment-28°C incubator wall—for 1 hour and the change in body temperatures was measured. Cold resistance–the ability to prevent a fall of deep body temperature in the 28°C environment– was significantly greater among infants who had spent 2 weeks in the slightly cooler environment. The rate of increase in body weight and length was significantly faster in the warmer condition.

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