The Study of Energy-Saving Window Technology Adaption for Green Buildings in the Severe Cold Region of Northern China

2018 ◽  
pp. 159-170
Author(s):  
Liang Yu ◽  
Xiaotong Wang
Keyword(s):  
Energy Saving ◽  
Northern China ◽  
Green Buildings ◽  
Cold Region

scholarly journals Analysis of Strengthening the Application of External Wall Insulation Materials in Green Building Energy Saving Project

2020 ◽  
Vol 3 (2) ◽  
pp. 32
Author(s):  
Wenxin Luo
Keyword(s):  
Energy Saving ◽  
Construction Industry ◽  
Urban Areas ◽  
Building Materials ◽  
Green Building ◽  
Green Buildings ◽  
Exterior Wall ◽  
Insulation Materials ◽  
Environment Quality

<p>For the development and progress direction of contemporary construction industry, greening has always been one of the most important topics, which is basically consistent with China’s guidelines on environmental protection and resource conservation, with emphasis on whether it can effectively improve the ecological environment quality in urban areas, control various hazards caused by pollution, and build a healthy urban environment for people. Nowadays, the building materials market has also developed in an all-round way, and the types of materials for exterior wall insulation are also increasing. Relatively, the practical application difficulty of various technologies in the construction industry also shows an increasing trend. In order to better highlight the important role of insulation materials for green buildings, this paper will explore the application of exterior wall insulation materials with strong energy saving in green buildings.</p>

scholarly journals Assessment of Energy Saving Potential by Replacing Conventional Materials by Cross Laminated Timber (CLT)—A Case Study of Office Buildings in China

2019 ◽  
Vol 9 (5) ◽  
pp. 858 ◽  
Author(s):  
Yu Dong ◽  
Xue Cui ◽  
Xunzhi Yin ◽  
Yang Chen ◽  
Haibo Guo
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Southern China ◽  
Computational Simulation ◽  
Northern China ◽  
Office Buildings ◽  
Reference Structure ◽  
Cross Laminated Timber ◽  
Climatic Regions ◽  
Heating And Cooling

This research evaluates the operational heating and cooling energy consumption of cross-laminated timber (CLT) office buildings in China. The evaluations involve a comparison of the energy consumption of a reference RC structure and CLT system office buildings. Computational simulation results are based on IES-VE 2019 and show that the estimated heating energy saving ratio of CLT buildings in Harbin, Beijing, Shanghai, and Kunming to the reference structure are 11.97%, 22.11%, 30.94%, and 23.30% respectively. However, the CLT buildings consume more energy for cooling in the summer. The results of the research show significantly higher heating energy reductions for CLT buildings in the Cold Region and Severe Cold Regions of China. Thus, the application of the CLT system is better suited to northern China than southern China. The results of the research can be used in further assessment of the use of CLT systems in different climatic regions in China.

scholarly journals BIM-VE-Based Optimization of Green Building Envelope from the Perspective of both Energy Saving and Life Cycle Cost

2020 ◽  
Vol 12 (19) ◽  
pp. 7862
Author(s):  
Zhenmin Yuan ◽  
Jianliang Zhou ◽  
Yaning Qiao ◽  
Yadi Zhang ◽  
Dandan Liu ◽  
...  
Keyword(s):  
Life Cycle ◽  
Energy Saving ◽  
Life Cycle Cost ◽  
Architectural Design ◽  
Green Building ◽  
Building Energy ◽  
Green Buildings ◽  
Building Envelope ◽  
Analysis Model ◽  
Mathematical Formula

In the context of the increasingly severe energy crisis and global warming, green buildings and their energy-saving issues are being paid more attention in the world. Since envelope optimization can significantly reduce the energy consumption of green buildings, value engineering (VE) technology and building information modeling (BIM) technology are used to optimize the envelope of green buildings, which takes into account both energy saving and life cycle cost. The theoretical framework of optimization for green building envelope based on BIM-VE is proposed, including a BIM model for architecture, a life cycle cost analysis model, energy-saving analysis model, and a value analysis model. In the life-cycle cost model, a mathematical formula for the life-cycle cost is established, and BIM technology is used to generate a bill of quantity. In the energy-saving analysis model, a mathematical formula for energy saving is established, and BIM technology is used for the building energy simulation. In the scheme decision-making sub-model, VE technology integrating life cycle cost with energy saving is used to assess the envelope schemes and select the optimal one. A prefabricated project case is used to simulate and test the established methodology. The important results show that the 16 envelope schemes make the 16 corresponding designed buildings meet the green building evaluation standards, and the optimal envelope scheme is the “energy-saving and anti-theft door + exterior window 2+ floor 1+ exterior wall 1 + inner shear wall + inner partition wall 2 + planted roof” with the value 10.80 × 10−2 MW·h/ten thousand yuan. A significant finding is that the value generally rises with the increase of energy-saving rate while the life cycle cost is irregular with the increase of energy-saving rate. Compared with previous efforts in the literature, this study introduces VE technology into architectural design to further expand the current boundary of building energy-saving theory. The findings and suggestions will provide a valuable reference and guidance for the architectural design industry to optimize the envelope of green buildings from the perspective of both energy saving and life cycle cost.

Data Center Room Air Conditioning Energy Consumption Analysis

2014 ◽  
Vol 672-674 ◽  
pp. 518-521
Author(s):  
Li Fei Song ◽  
Tao Li ◽  
Qi Fen Li ◽  
Lin Hui Zhao ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Data Center ◽  
Air Conditioning ◽  
Field Research ◽  
Northern China ◽  
Air Conditioning System ◽  
Energy Consumption Analysis ◽  
Energy Saving Technology

In this paper, the Unicom's medium-sized IDC room in a city of northern China is the research object for the study. Based on field research of the room refrigeration conditions, data center room air conditioning system is carried out to optimize and for energy conservation research. Through the analytic methods of energy saving-technology, the best energy saving solutions is explored.

Energy Saving and Emission Reduction in Power Generation Sector for China’s Heat Pump Heating

2012 ◽  
Vol 608-609 ◽  
pp. 961-964
Author(s):  
Xia Chen ◽  
Li Wang ◽  
Li Ge Tong ◽  
Shu Feng Sun ◽  
Xian Fang Yue ◽  
...  
Keyword(s):  
Power Generation ◽  
Energy Saving ◽  
Heat Pump ◽  
Emission Reduction ◽  
Co2 Emission ◽  
Positive Impact ◽  
Current Trend ◽  
Northern China ◽  
Heat Pumps ◽  
The Impact

China is ranked as the world’s largest emitter of carbon dioxide (CO2). The CO2 emission from urban central heating (UCH) is responsible for 4.4% of China’s total CO2 emission. It is proposed that heat pump heating (HPH) could serve as a replacement for UCH to help realize energy-saving and emission-reduction goals to a greater extent. In northern China, 30% of urban building area is covered by urban decentralized heating (UDH). Replacing UDH with HPH is the current trend in China. In this paper we analyze the impact of replacing coal with heat pumps on the power generation sector in China. The results show that HPH has a positive impact on the power generation sector. By considering simultaneous replacement of UCH and UDH with HPH, the efficiency of power generation at the valley electricity time is increased by 0.512%; the ratio of peak–valley difference is decreased by 25.3%; the obtained reduction of CO2 emission cumulatively contributes to approximately 10.96% of this target.

scholarly journals Application Calibration Based on Energy Consumption Model in Optimal Design of Green Buildings

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Feiran Xue ◽  
Jingyuan Zhao
Keyword(s):  
Sustainable Development ◽  
Life Cycle ◽  
Energy Consumption ◽  
Energy Saving ◽  
Energy Management ◽  
Green Buildings ◽  
Load Test ◽  
Energy Consumption Model ◽  
Consumption Model

Buildings will generate considerable resource and energy consumption, environmental impact, and costs throughout their entire life cycle. Life cycle assessment and life cycle cost methods have become widely used building sustainability evaluation methods internationally due to their long-term comprehensive evaluation perspectives and scientific quantitative calculation methods. In response to energy consumption management issues in green buildings, a questionnaire survey was conducted to investigate the concepts of sustainable development, green environmental protection, and energy consumption management of construction enterprise personnel. Through the survey, it can be seen that corporate executives generally have a sense of sustainable development and pay more attention to sustainable competition and the green development of enterprises. Approximately 90% of executives understand energy consumption models. Only 10% of employees do not understand, but they are acquired by the company’s frontline employees. The result of the feedback is just the opposite. Frontline workers pay little attention to the long-term development of the company. Only about 5% of employees are proficient in the energy management system, but the proportion of completely unknown is as high as 20%, indicating that the overall energy management awareness of Chinese enterprises still needs to be strengthened. Secondly, through design experiments, the energy-saving management effect of the energy consumption model was observed and analyzed. From the power saving and load test, we found that the monitoring of the energy consumption model is helpful for companies to choose more energy-efficient building circuit designs, achieving an average annual energy-saving effect of about 8%, so as to achieve the purpose of energy saving.

scholarly journals A System to Pre-Evaluate the Suitability of Energy-Saving Technology for Green Buildings

2018 ◽  
Vol 10 (10) ◽  
pp. 3777 ◽  
Author(s):  
Shilei Lu ◽  
Minchao Fan ◽  
Yiqun Zhao
Keyword(s):  
Energy Saving ◽  
Evaluation System ◽  
Simulated Annealing Algorithm ◽  
Green Building ◽  
Building Energy ◽  
Green Buildings ◽  
Design Stage ◽  
Rating Systems ◽  
Pile Up ◽  
Building Energy Saving

Rating systems for green buildings often give assessments from the perspective of the overall performance of a single building or architecture complex but rarely target specific green building technologies. As some of the rating systems are scored according to whether the technologies are used or not, some developers tend to pile up energy-saving technologies blindly just for the sake of certifications without considering their suitability for the application. Such behavior may lead to the failure of achieving the energy goals for green buildings. To solve this problem, a system that pre-evaluates the suitability of green building energy-saving technologies is devised based on modified TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution) method, SA (simulated annealing) algorithm and unascertained theory-based data analysis method. By setting indices from technology performance, economy, human satisfaction aspects and by using the building prior information and measured database of technology usage, this system can make a quantifiable and multi-dimensional grading assessment for the target green building energy-saving technologies in the design stage. The system aims at helping the designer choose technologies in the design phase that best enhance the performance of the finished green building. It also helps prevent the sub-optimal performance of unsuitable technologies caused by the “pile up” behavior mentioned earlier. To verify this evaluation system, two building designs which use energy-recovery technology are evaluated, and the predicted performance for both designs matched the actual operation of the technology in the buildings themselves well.

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