Research on Large-Scale Building Energy Efficiency Retrofit Based on Energy Consumption Investigation and Energy-Saving Potential Analysis

2019 ◽  
Vol 145 (6) ◽  
pp. 04019024
Author(s):  
Donglin Zheng ◽  
Lijun Yu ◽  
Lizhen Wang
2011 ◽  
Vol 368-373 ◽  
pp. 3663-3666
Author(s):  
Qi Song ◽  
Xiao Jie Zhang

Energy performance contracting plays a key role in improving the building energy-efficiency in China. This paper introduces the current situation of energy-efficiency of large-scale public building in China and provides an overview of energy performance contracting, and then puts forward an innovative energy-efficiency running mode. This paper tries to offer theoretical references for the development of EMC in energy-saving field of large-scale public buildings.


2013 ◽  
Vol 291-294 ◽  
pp. 1044-1049 ◽  
Author(s):  
Wen Long Jing ◽  
Mohamed Nayel

A building energy audit was developed through a case study on the science building at Xi'an Jiaotong-Liverpool University (XJTLU). The annual energy consumption of the building was surveyed over a two year period. The building energy consumption characteristics were displayed and the corresponding energy saving potential was analyzed. Additionally, an energy saving methods is proposed based on the characteristics of the target building.


2012 ◽  
Vol 446-449 ◽  
pp. 528-532
Author(s):  
Cao Xiang

The energy saving of office building plays an important role in large-scale public building energy saving. This paper analyzed the energy waste phenomena and problems, found the office building energy efficiency weaknesses and correction, on basis of researching and testing a large public building energy consumption system in Tianjin.


2014 ◽  
Vol 525 ◽  
pp. 439-442
Author(s):  
Ling Jiao

With the development of economy, the progress of the times, the city continued to expand the scale of construction, building energy consumption is more and more serious, and the green energy-saving buildings are paid more and more attention in society. Building energy efficiency can fundamentally promote the savings and the rational use of energy and resources, Building energy efficiency is the needs to guarantee the sustainable development of national economy. With problems in building energy efficiency as the point of penetration, this paper analyses the present situations of building energy consumption and the major energy-saving issues in China. On the basis, in order to promote the green building of sustainable development, from thinking, evaluation system, design and other aspects some suggestions and measures are proposed .


2013 ◽  
Vol 361-363 ◽  
pp. 444-447
Author(s):  
Qian Wang ◽  
Rui Li

Air conditioning energy saving is of great significance for building energy efficiency, reduce air conditioning energy consumption can reduce most of the building energy consumption, achieve the purpose of saving energy. This article analyzed and discussed the choice of indoor design parameters, the choice of cold and heat source and the design of the transmission and distribution system.


2014 ◽  
Vol 977 ◽  
pp. 174-177
Author(s):  
Xin Li ◽  
Rui Ying Jia ◽  
Run Ping Niu

The purpose of building energy efficiency diagnosis was to find out the problems existing in the process of using energy and analysis the potential of energy saving to guide the owner who should improve the building energy efficiency as far as possible to reduce building energy consumption. This paper involves only the research on energy saving diagnosis of clean air conditioning system in pharmaceutical industry.


2014 ◽  
Vol 641-642 ◽  
pp. 982-986 ◽  
Author(s):  
Fei Fei Li ◽  
Ze Ping Zhang ◽  
Jia Yu

This study is based on the energy audit and energy consumption analysis of Taiyuan government office building and large public building, and objectiveiy appraises the building energy consumption, makes a quantitative analysis on energy consumption situation of the energy-using building. Then we know the problems of the public building energy consumption .we can conclude that the potential of public building energy efficiency ,and put forward energy-saving measures to promote the energy saving reform of public building.


2019 ◽  
Vol 23 (5 Part B) ◽  
pp. 3251-3262 ◽  
Author(s):  
Chao Luo ◽  
Yulie Gong ◽  
Weibin Ma ◽  
Jun Zhao

Because of irreversibility on building construction, building energy efficiency design is more depended on simulation technology. Ministry of Housing and Urban?Rural Development of China also stated that China?s building energy consumption accounted for 27.5% of the total energy consumption in 2012. Energy consumption is simulated based on the heat transfer principle of building wall, windows, roof and ventilation. Improved measurements are proposed for simulation cases. The heating, ventilation, and air conditioning energy consumption of benchmark and energy efficiency building are simulated based on EnergyPlus software. The most effective energy-saving measurements of energy efficiency building are improving air-conditioning system performance and thermal properties of wall and window. The results show that the energy efficiency ratio of refrigeration system should be more than three and energy-saving ratio is about 30%. Heat transfer coefficient of wall and window should be less than 1.0 W/m2k- and 2.0 ,W/m2k- the energy-saving ratio is more than 16% and 10%, respectively. The sum energy-saving ratios of refrigeration system, wall and window are about 56%. The energy efficiency ratios of roof and air exchanges number are not very obvious. Some energy-saving technologies with high cost are put forward based on simulation results which provide effective ways for building energy efficiency in Guangdong province, China.


Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 81
Author(s):  
Rongjiang Ma ◽  
Shen Yang ◽  
Xianlin Wang ◽  
Xi-Cheng Wang ◽  
Ming Shan ◽  
...  

Air-conditioning systems contribute the most to energy consumption among building equipment. Hence, energy saving for air-conditioning systems would be the essence of reducing building energy consumption. The conventional energy-saving diagnosis method through observation, test, and identification (OTI) has several drawbacks such as time consumption and narrow focus. To overcome these problems, this study proposed a systematic method for energy-saving diagnosis in air-conditioning systems based on data mining. The method mainly includes seven steps: (1) data collection, (2) data preprocessing, (3) recognition of variable-speed equipment, (4) recognition of system operation mode, (5) regression analysis of energy consumption data, (6) constraints analysis of system running, and (7) energy-saving potential analysis. A case study with a complicated air-conditioning system coupled with an ice storage system demonstrated the effectiveness of the proposed method. Compared with the traditional OTI method, the data-mining-based method can provide a more comprehensive analysis of energy-saving potential with less time cost, although it strongly relies on data quality in all steps and lacks flexibility for diagnosing specific equipment for energy-saving potential analysis. The results can deepen the understanding of the operating data characteristics of air-conditioning systems.


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