Analysis on Regional Adaptability of Interior Thermal Insulation System in South China

2011 ◽  
Vol 121-126 ◽  
pp. 3077-3084
Author(s):  
Peng Ren ◽  
Qiong Li ◽  
Qing Lin Meng ◽  
Gui Ning Wu ◽  
Wei Jie Lian
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
South China ◽  
Simulation Analysis ◽  
Building Envelope ◽  
Cold Region ◽  
Insulation System ◽  
Building Facades ◽  
Insulation Quality ◽  
Better Than

For seeking out suitable means of thermal insulation system of building envelope in south China, this paper has conducted simulation analysis on respective energy consumption of the typical residential template in cold region and south China, when adopt exterior thermal insulation system or interior thermal insulation system. The study has shown that the exterior thermal insulation system is much better than the interior thermal insulation system in energy efficiency in the cold region, but there isn’t obvious difference between them in south China. And from the aspects of the climate’s influence on the insulation quality, the installation’s influence on the building facades and the construction practices, it is proved that the interior thermal insulation system is more suitable than the exterior thermal insulation system in south China.

Study on Spread of Fire Overflow on Building Facades with Insulation Materials

2013 ◽  
Vol 405-408 ◽  
pp. 2438-2442
Author(s):  
Yan Feng Li ◽  
Cong Cong Xu ◽  
Xue Fei Xing ◽  
Jin Zhang ◽  
Cheng Hu
Keyword(s):  
Numerical Simulation ◽  
Thermal Insulation ◽  
Maximum Temperature ◽  
Computational Results ◽  
Exterior Wall ◽  
Insulation Layer ◽  
Insulation System ◽  
High Rise ◽  
Building Facades ◽  
Fire Barrier

Fire overflow on exterior wall with thermal insulation system has been studied by numerical simulation. The spread laws of fire overflow are analyzed through the temperature distribution near the window. The computational results are compared with those of test in the Exterior Insulation Fire Barrier Technical Guidelines (EIFBTG). It has been found that the calculated maximum temperature points is closed to the test on the first floor, the first ceiling, and the points near the above two windows. However, there are differences between two kinds of results above two floors and ceilings, and the points near the first window. It has also shown that when the HHR is 7.5KW, the scope of damage of exterior thermal insulation layer is about 15 square meters near the window. The research would provide reference for fire protection design of exterior wall thermal insulation in the high-rise buildings.

Thermal Bridges Minimizing through Typical Details in Low Energy Designing

2014 ◽  
Vol 899 ◽  
pp. 62-65 ◽  
Author(s):  
Rastislav Ingeli ◽  
Boris Vavrovič ◽  
Miroslav Čekon
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
Energy Demand ◽  
Building Energy ◽  
Building Envelope ◽  
Low Energy ◽  
Building Energy Efficiency ◽  
Low Energy Buildings ◽  
Thermal Bridges ◽  
The Impact

Energy demand reduction in buildings is an important measure to achieve climate change mitigation. It is essential to minimize heat losses in designing phase in accordance of building energy efficiency. For building energy efficiency in a mild climate zone, a large part of the heating demand is caused by transmission losses through the building envelope. Building envelopes with high thermal resistance are typical for low-energy buildings in general. In this sense thermal bridges impact increases by using of greater thickness of thermal insulation. This paper is focused on thermal bridges minimizing through typical system details in buildings. The impact of thermal bridges was studied by comparative calculations for a case study of building with different amounts of thermal insulation. The calculated results represent a percentage distribution of heat loss through typical building components in correlation of various thicknesses of their thermal insulations.

Study on Building Materials with Exterior Insulation System Problems and Solutions

2013 ◽  
Vol 788 ◽  
pp. 656-659
Author(s):  
Xiao Jie Zhang ◽  
Yuan Ping Liu
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
Building Materials ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Insulation System ◽  
External Wall ◽  
Construction Methods ◽  
Problems And Solutions ◽  
Domestic Use

Building palisade structure is the most important part of the wall, so the external wall thermal insulation technology has become an important part of building energy efficiency. After the author found the domestic use of insulation materials in a variety of forms, different use method makes the external wall thermal insulation system has a problem. The analysis of the cause of the problem at the same time, this paper discusses how to use of selected materials and improving the construction methods to avoid the happening of the accident.

scholarly journals EVALUATION OF THE APPLICATION OF A THERMAL INSULATION SYSTEM: IN-SITU COMPARISSON OF SEASONAL AND DAILY CLIMATIC FLUCTUATIONS

2017 ◽  
Vol 57 (3) ◽  
pp. 159-166
Author(s):  
Jan Fořt ◽  
Pavel Beran ◽  
Petr Konvalinka ◽  
Zbyšek Pavlík ◽  
Robert Černý
Keyword(s):  
Thermal Stability ◽  
Relative Humidity ◽  
Thermal Insulation ◽  
Building Envelope ◽  
Energy Sustainability ◽  
Insulation System ◽  
Climatic Fluctuations ◽  
Thermal Stability Of ◽  
The Eu

The current outdated state of many institutional and administrative buildings in the EU region poses a significant burden from the energy sustainability point of view. According to the contemporary EU requirements on the energy efficiency of buildings maintenance, an evaluation of performed improvements is essential for the assessment of expended investments. This paper describes the effect of building envelope reconstruction works consisting in the installation of a thermal insulation system. Here, a long-term continuous monitoring is used for the extensive assessment of the seasonal and daily temperature and relative humidity fluctuations. The obtained results include temperature and relative humidity profiles in the wall cross-section as a response to the changing exterior climatic conditions. The analysis of measured data reveals substantial improvements in thermal stability of the analyzed wall during temperature peaks. While the indoor temperatures exceeding 28 °C are recorded during summer before application of the thermal insulation layer, the thermal stability of the indoor environment is distinctly upgraded after performed improvements. Based on the complex long-term monitoring, a relevant experience is gained for the future work on energy sustainability and fulfilment of the EU directives.

scholarly journals Generalized design principle and method for a non-balanced thermal insulation system in building envelope

2017 ◽  
Vol 9 (5) ◽  
pp. 168781401769935 ◽  
Author(s):  
Jingchao Xie ◽  
Jiaping Liu ◽  
Jianping Wang ◽  
Na Cui ◽  
Pengfei Sang
Keyword(s):  
Thermal Insulation ◽  
Design Principle ◽  
Building Envelope ◽  
Insulation System

Climatic zoning for the building thermal design in China's rural areas

2021 ◽  
pp. 014362442110081
Author(s):  
Yao Chen ◽  
Zhiwei Wang ◽  
Peng Wei
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
Rural Areas ◽  
Building Envelope ◽  
Thermal Design ◽  
Average Temperature ◽  
Monthly Average ◽  
Monthly Average Temperature ◽  
Degree Day ◽  
Climatic Zoning

Building climatic zoning is a prerequisite for implementing building energy efficiency technology, which can help code makers and architects have an accurate understanding of the local climatic conditions. It takes the extreme monthly average temperature as the zoning index in the existing climatic zoning of rural areas in China. There will be unreasonable design phenomena of insufficient or excessive thermal insulation for a building envelope in rural areas. Aiming at the above problems, this paper modifies the current zoning. This research established the cooling and heating degree-day indexes HDD14 and CDD30 based on the thermal comfort characteristics of rural occupants and used the threshold method to subdivide rural areas into eight sub-zones. The results show that the problem of insufficient or excessive thermal insulation in rural areas can be effectively solved by replacing the extreme monthly average temperature index with the degree day index and the annual cumulative building load can be reduced by 6.4% on average without increasing the insulation cost. After more detailed zoning, the variance within the group is reduced and it accurately describes climate diversity, which is conducive to implementing climate-responsive energy-saving design in each subzone. Practical application: The major purpose of this paper is to solve the problem of unreasonable climate zone boundaries specified in the existing Design Standard for Energy Efficiency of Rural Residential Buildings. The existing zoning has led to conflicts between the actual heating demand and the building envelope thermal parameter limits specified in the standard. This work redefines the boundaries of the existing map using more up-to-date weather data to provide the right guidance for architectural designers.

Numerical study of the energy efficiency of the building envelope containing multi-alveolar structures under Tunisian weather conditions

2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Nour Lajimi ◽  
Nour Ben Taher ◽  
Noureddine Boukadida
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Thermal Behavior ◽  
Thermal Insulation ◽  
Numerical Study ◽  
Thermal Inertia ◽  
Building Envelope ◽  
Winter Period ◽  
Alveolar Structure ◽  
Major Interest

Abstract The study of the thermal inertia of buildings is a subject of major interest. The thermal insulation and the nature of the wall sensitively modify the inertia of the building and are the solutions to improve the energy efficiency of the envelope. The roof is well exposed to solar radiation in summer and contributes to significant losses in winter due to convective exchanges. To lead to a thermal comfort, a thermal insulation is necessary. In this context, we carry out a numerical study of the thermal behavior of a building with two zones in variable meteorological conditions for a Tunisian climate (region of Sousse) based on the thermoelectric analogy and using the nodal method as a numerical method. The object of this work is to study the effect of the thermal inertia of the roof equipped with a multi-alveolar structure on the thermal behavior of the air inside the room and on its energy consumption. Taking into account the energy input of occupant, a complete model was established to increase the accuracy of the calculations. The results show that the multi-alveolar structure placed on the outside of the roof reduces energy consumption during the winter period when the alveolar structure is placed in the conductive direction and during the summer period when the alveolar structure is placed in the insulate direction.

Study Concerning the Thermal Insulation Panels with Double-Side Anti-Condensation Foil on the Exterior and Polyurethane Foam or Polyisocyanurate on the Interior

2015 ◽  
Vol 660 ◽  
pp. 244-248 ◽  
Author(s):  
Simon Pescari ◽  
Dan Tudor ◽  
Stefan Tölgyi ◽  
Carmen Maduta
Keyword(s):  
Energy Efficiency ◽  
Economic Impact ◽  
Polyurethane Foam ◽  
Thermal Insulation ◽  
Economic Efficiency ◽  
Heating System ◽  
Energy Performance ◽  
Mineral Wool ◽  
Building Envelope ◽  
Insulating Materials

The paper aims to assess the energy performance of a thermal rehabilitated ground floor building by using new thermal insulation panels with double-side anti-condensation foil on the exterior and polyurethane foam or polyisocyanurate on the interior (PUR or PIR) in various ways. The study also wants to emphasize the benefits of using these insulating materials encouraging their further use. Therefore, five scenarios are carried out, four thermal rehabilitation scenarios and the reference building scenario, without thermal insulation. The obtained results are evaluated by comparison. The results point out the energy performance of PUR and PIR used as thermal insulation panels for the building envelope but also the economic impact and the economic efficiency that involves using such panels. This work is based on the energy efficiency requirements targeting the building envelope and takes into account mainly the behavior of the envelope elements while the heating system is treated in a simplified manner, considering its usual efficiency. The conclusions highlight the main advantages of using these panels for buildings thermal rehabilitation compared to other common materials, such as polystyrene or mineral wool.

Switchable Thermal Insulation for Increasing Energy Efficiency of Building FaÇades

2016 ◽  
Author(s):  
Constantin Römer ◽  
H Weinläder ◽  
S Weismann ◽  
S Vidi ◽  
J Wachtel
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
Building Facades
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