Study on Building Energy Saving Techniques and Ways in China

2014 ◽  
Vol 908 ◽  
pp. 445-448
Author(s):  
Fang Fang Yang

The building is one of the most common forms of space in our life, has a great influence on our life. China facing a very grim energy situation, building energy efficiency has great impetus to economic development. This paper analyzes the ways to achieve the construction of energy-efficient and proposes to reduce the total energy demand and utilization of new energy sources. In the construction of energy-saving technology, the construction of energy-efficient windows and doors and roof insulation wall are analyzed and puts forward some relevant suggestions.

2014 ◽  
Vol 507 ◽  
pp. 511-514
Author(s):  
Li Liu ◽  
Lei Xu

German building energy-saving technology holds a leading position in the world. This paper studies German low-energy buildings in aspects of the wall, thermal insulation, the window, new energy application, natural ventilation and controllable sun-shading, looking forward to provide certain reference for Chinas building energy conservation.


2013 ◽  
Vol 690-693 ◽  
pp. 673-677
Author(s):  
Hong Yan

With the continuous development of social economy, of residents’living consumption structure upgrade, building energy consumption quantity huge, the increasing focus on research and application of building energy-saving technology. Based on low carbon concept, this paper expounds the necessity of building energy-saving, introducing building envelopes structure energy-saving technology, HVAC systems energy saving technology and new energy utilization technology, analyses the application of building energy-saving about the "Bird's Nest" and the "Water Cube", draw the urgency and the reality of building energy saving technology promotion and application.


Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 442
Author(s):  
Xiaoyue Zhu ◽  
Bo Gao ◽  
Xudong Yang ◽  
Zhong Yu ◽  
Ji Ni

In China, a surging urbanization highlights the significance of building energy conservation. However, most building energy-saving schemes are designed solely in compliance with prescriptive codes and lack consideration of the local situations, resulting in an unsatisfactory effect and a waste of funds. Moreover, the actual effect of the design has yet to be thoroughly verified through field tests. In this study, a method of modifying conventional building energy-saving design based on research into the local climate and residents’ living habits was proposed, and residential buildings in Panzhihua, China were selected for trial. Further, the modification scheme was implemented in an actual project with its effect verified by field tests. Research grasps the precise climate features of Panzhihua, which was previously not provided, and concludes that Panzhihua is a hot summer and warm winter zone. Accordingly, the original internal insulation was canceled, and the shading performance of the windows was strengthened instead. Test results suggest that the consequent change of SET* does not exceed 0.5 °C, whereas variations in the energy consumption depend on the room orientation. For rooms receiving less solar radiation, the average energy consumption increased by approximately 20%, whereas for rooms with a severe western exposure, the average energy consumption decreased by approximately 11%. On the other hand, the cost savings of removing the insulation layer are estimated at 177 million RMB (1 USD ≈ 6.5 RMB) per year. In conclusion, the research-based modification method proposed in this study can be an effective tool for improving building energy efficiency adapted to local conditions.


2012 ◽  
Vol 512-515 ◽  
pp. 2899-2903
Author(s):  
Xiao Mei Shen ◽  
Ju Wu Xu

With the deepening of the energy conservation of the building, energy saving from the original design of building energy-saving gradually turned to the field detection and completion acceptance, which requires a corresponding energy-efficient means of detection. With the development of infrared technology, the combination of infrared technology and detection methods of building energy-saving, to further promote the development of building energy efficiency testing work. Compared to the traditional heat flow meter or hot-box method, infrared thermal imaging method has no effect on the measured object, detecting the surface temperature of quick reaction speed, accompanying with wide temperature range and high precision, is widely used in various fields of testing work, which has been particularly prominent in the thermal defect detection. In this paper, the method of infrared thermography is used to confirm whether the thermal defects exist in energy-saving construction or not. Testing results show that infrared thermography can accurately reflect the temperature distribution of building wall surface. Infrared thermal imaging to detect the building surface's energy efficiency, which is providing efficient and accurate means of detection for the evaluation of the building energy efficiency. This is to help carry out a comprehensive building energy-saving testing.


2011 ◽  
Vol 71-78 ◽  
pp. 78-81
Author(s):  
Yun Xue ◽  
Guo Ming Dong ◽  
Hui Xia Wen

China building energy-saving technology is in the early stages of the development with energy high consumption and low energy efficiency. It is especially important to control each link of the building energy-saving for energy conservation. In construction of the envelope structure exists Some prominent effects ,such as the compilation and implementation of the construction technology, the review of design alteration, the performance measurement of materials and components, and control of construction technical measures, we should be implemented related inspection and control in all stages of the implementation process.


2011 ◽  
Vol 347-353 ◽  
pp. 3603-3608
Author(s):  
Ge Liu ◽  
Ming Qiang Huang

It is not only a complicate system of energy-saving construction in towns and villages housing,but also a long and arduous task. With the process of urbanization was further development and the aim of building new socialist countryside was proposed, the development of towns and villages housing construction was very rapid. It is important to ensure that the appropriate energy-saving was chose by according to the actual needs of towns and villages housing and use the suitable assessment system to evaluate energy-saving technologies to improve the overall lever of towns and villages housing. Combine with the actual situation about the using of energy-saving technology in towns and villages housing in China, from the advanced, economy and feasible of technology and the sustainability of project to establish the energy efficiency technology assessment system on towns and villages housing, and used AHP to determine weights, in order to provide reference for better promote the development of towns and villages housing.


2013 ◽  
Vol 830 ◽  
pp. 416-421
Author(s):  
Mei Xiong

The constraints of resources and environment in China are more and more intense. The 12th Five-Year Plan requires that energy saving must be considered in the architectural design. Liangshan has special climate and sunshine. Therefore, the Government of Liangshan requires that building energy saving must be started from the stage of architectural design. Building energy efficiency must be considered from several aspects, such as architectural layout, wall structure, windows and doors, roof structure, external sun-shading, and construction materials.


2017 ◽  
Vol 865 ◽  
pp. 301-305 ◽  
Author(s):  
Liu Jin

In this paper, evaluation index system of green building energy-saving technology was established on the basis of comprehensive analysis of the factors affecting green building energy-saving technology. This evaluation index system was divided into two levels. Thermal performance of maintenance structure, energy efficiency of building equipment, design management, operation management and indoor comfort and health were one-level evaluation index, and there are eighteen two-level evaluation indexes. Entropy weight method was introduced to determine the weight of evaluation index. Fuzzy synthetic evaluation method was applied to synthetic evaluation. On this basis, a model based on entropy weight method and fuzzy synthetic evaluation method was proposed to evaluate the green building energy-saving technology. An example was given to verify the validity and feasibility of the model. Results show that the model can used to evaluate the green building energy-saving technology, and offers reference on evaluation of green building energy-saving.


2010 ◽  
Vol 150-151 ◽  
pp. 630-633 ◽  
Author(s):  
Chun Lv

The primary factor in reducing building energy consumption is the wall energy, but thickening the walls simply and using traditional materials to reduce energy consumption has become unable to satisfy the development trend at the present stage. Energy-saving wall materials include organic wall insulation, inorganic wall insulation and composite wall insulation. According to the construction technology, insulation wall can be divided into internal insulation wall, sandwich insulation wall and external insulation wall etc.. Polyurethane foam and other new energy-saving materials are widely used, whicth will become the main energy-saving materials in the northern cold areas.


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