Research on Thermal Insulation and Energy Saving of External Wall in City High-Rise Building of Cold Area

2014 ◽  
Vol 686 ◽  
pp. 660-665
Author(s):  
Ming Gui Zhou
Keyword(s):  
Numerical Simulation ◽  
Energy Saving ◽  
Thermal Insulation ◽  
Frame Structure ◽  
Insulation Material ◽  
Exterior Wall ◽  
Insulation System ◽  
High Rise ◽  
Cold Area ◽  
Hollow Block

This paper applies the method of numerical simulation and field detection, and studied energy-saving insulation characteristics on the external walls of high-rise buildings in cold area, analyze and recommend the best arrangement of building and the most generous exterior wall insulation system suitable for cold area, and the degree of insulation materials were studied. The results show that: the mode preferred cold area is exterior insulation, insulation material made of extruded polystyrene board, frame structure filling wall preferred ceramsite hollow block.

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.

Concrete Exterior Wall Insulation without Network System

2013 ◽  
Vol 724-725 ◽  
pp. 1495-1499 ◽  
Author(s):  
Shu Hua Wei ◽  
Xiao Jun Wang
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Network System ◽  
Exterior Wall ◽  
Existing Buildings ◽  
System Technology ◽  
Insulation System ◽  
High Rise ◽  
New Buildings

External thermal insulation system of Cast-in-situ concrete exterior wall in high-rise civil building includes with network and without network system, wherein the cast-in-place concrete exterior wall insulation without network system is the most economical and the external thermal insulation system. This system applies to new buildings, can also be applied to energy saving renovation of existing buildings. In this paper, the system technology without steelmesh is synthetically introduced so that more engineers can know and use it better.

Insulation and Fireproof Performance of Several New Materials for Exterior Wall

2012 ◽  
Vol 174-177 ◽  
pp. 1290-1293
Author(s):  
Jia Wei Yao ◽  
Zhao Ming Hou ◽  
Yi Shu Yao
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Building Energy ◽  
Insulation Material ◽  
Exterior Wall ◽  
New Materials ◽  
Thermal Insulation Material ◽  
External Wall ◽  
Insulation Effect ◽  
Building Energy Saving

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.

scholarly journals Design and Verification of a Deep Rock Corer with Retaining the In Situ Temperature

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Zhiqiang He ◽  
Heping Xie ◽  
Mingzhong Gao ◽  
Ling Chen ◽  
Bo Yu ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Heat Dissipation ◽  
Electric Heating ◽  
Transfer Model ◽  
Hollow Glass Microsphere ◽  
Insulation Material ◽  
Insulation System ◽  
Deep Rock ◽  
Active Thermal Insulation

Deep rock is always under high-temperature conditions. However, traditional coring methods generally have no thermal insulation design, which introduces large deviations in the guidance required for resource mining. Thus, a thermal insulation design that utilizes active and passive thermal insulation was proposed for deep rock corers. The rationale behind the active thermal insulation scheme was to maintain the in situ core temperature through electric heating that was controlled by using a proportional-integral-derivative (PID) chip. Graphene heating material could be used as a heating material for active thermal insulation through testing. In regard to the passive thermal insulation scheme, we conducted insulation and microscopic and insulation effectiveness tests for hollow glass microsphere (HGM) composites and SiO2 aerogels. Results showed that the #1 HGM composite (C1) had an excellent thermal insulation performance (3 mm thick C1 can insulate to 82.6°C), high reflectivity (90.02%), and wide applicability. Therefore, C1 could be used as a passive insulation material in deep rock corers. Moreover, a heat transfer model that considered multiple heat dissipation surfaces was established, which can provide theoretical guidance for engineering applications. Finally, a verification test of the integrated active and passive thermal insulation system (graphene heating material and C1) was carried out. Results showed that the insulating effect could be increased by 13.3%; thus, the feasibility of the integrated thermal insulation system was verified. The abovementioned design scheme and test results provide research basis and guidance for the development of thermally insulated deep rock coring equipment.

Analysis on Quality Issues for External Thermal Insulation System on Outer Walls

2012 ◽  
Vol 430-432 ◽  
pp. 1628-1631
Author(s):  
Ding Tang Wang
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Insulation System ◽  
Quality Issues

With the coming forth of a batch of energy saving buildings in China, some quality issues of cracking, hollowing, dropping, disrupting of thermal insulation layers follow on the heels of it. This paper analyzes the mechanism and causes of formation on these quality issues and puts forward the corresponding countermeasures for avoiding, treating or taking precaution against these issues. It is a valuable reference to treat the issues on insulation system as well as has directive meanings to install insulation system.

Cooperative Performance of Sandwich Insulation Walls With Expanded Polystyrene Under Static Loads

2012 ◽  
Vol 602-604 ◽  
pp. 948-951
Author(s):  
De Ling Wang ◽  
Zhong Li
Keyword(s):  
Numerical Simulation ◽  
Thermal Insulation ◽  
Expanded Polystyrene ◽  
Vertical Load ◽  
Exterior Wall ◽  
Insulation Layer ◽  
Static Loads ◽  
Interface Friction ◽  
Ring Shape ◽  
Concrete Blocks

Sandwich insulation walls can bear loadings and insulate thermal which are fit for cold and freezing areas. In this paper, small-sized concrete hollow blocks are selected as interior and exterior wall; expanded polystyrene (EPS) plates are selected as thermal insulation layer which are put between inner and outer layers. Effects of several factors on cooperative performance of interior and exterior wall under static loads were analyzed by numerical simulation. These factors include the type of connection steel, the vertical load and the property of interface between EPS and concrete blocks. The results show that among the connection steel of ‘Z’ shape, ring shape and tie netting, the last is the best. Displacement difference between interior and exterior walls increases with increasing vertical load. And if the interface friction between EPS block and concrete blocks is considered, displacement and displacement difference of sandwich walls all increase. These results agree with similar tests.

The Research on the Development and Application of the Exterior Heat Insulation Material System in China

2012 ◽  
Vol 174-177 ◽  
pp. 988-992
Author(s):  
Shuang Mei Cao
Keyword(s):  
Energy Saving ◽  
Heat Insulation ◽  
Material System ◽  
Insulation Material ◽  
Insulation System ◽  
Heat Insulation Material ◽  
Insulation Systems ◽  
New Type ◽  
Composite Wall ◽  
Heat Preservation

This thesis analyzes the current situation of the heat insulation system of composite wall in China. Through comparison, it points out that heat insulation system is the trend of the development for heat preservation and energy saving, and meanwhile, it gives direction for further research to several different new type heat insulation systems.

Optimization of Public Building Energy Design Schemes Base on the Minimizing of Operating Energy Consumption

2012 ◽  
Vol 193-194 ◽  
pp. 21-25
Author(s):  
Min Chen ◽  
Min Jie Pang ◽  
Hong Guang Fang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Design Process ◽  
Building Energy ◽  
Exterior Wall ◽  
Insulation System ◽  
Public Building ◽  
Software Simulation ◽  
The Public ◽  
Building Energy Saving

Firstly, this paper introduced several kinds of frequently-used thermal insulation system, which included exterior wall insulation system, doors and windows insulation system and roof insulation system. Secondly, the principle and method of the consumption simulation of the public buildings are expatiated on, including software simulation principle, design process and the setting of related parameters. Thirdly, taking a public building in Nantong, Jiangsu province as an example, the operating energy consumption of different energy-saving design schemes are simulated with the Tangent Building Energy-saving Computation (TBEC) software, and the energy saving design schemes of the public building are optimized in the view of minimizing the energy consumption. At last some references of public building energy saving design are provided.

Progress on Vacuum Insulation Panels in Building Application

2012 ◽  
Vol 178-181 ◽  
pp. 46-50
Author(s):  
Wang Ping Wu ◽  
Zhou Chen ◽  
Cheng Dong Li ◽  
Teng Zhou Xu ◽  
Jin Lian Qiu ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Thermal Insulation ◽  
Surface Damage ◽  
Core Material ◽  
Insulation Material ◽  
Insulation System ◽  
Vacuum Insulation ◽  
Insulation Thickness ◽  
New Material ◽  
Barrier Film

The insulation material VIP in building offers a new material for highly insulated constructions with just a fraction of the required insulation thickness compared to conventional thermal insulation materials. A VIP is basically composed of the core material, the barrier film and getters. Core materials of VIP are glass fiber, fumed silica, fiber-powder composite core. The barrier film covered by glass fiber textile is the protection of the envelope against surface damage and fire attack. We introduce the VIP elements, the system of VIPs in building application and external thermal insulation system with VIP.

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